CINXE.COM

PFAS chemicals are persistent environmental contaminants

<!DOCTYPE html> <html lang="en-US"> <head > <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <meta name='robots' content='index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1' /> <!-- This site is optimized with the Yoast SEO Premium plugin v23.4 (Yoast SEO v23.5) - https://yoast.com/wordpress/plugins/seo/ --> <title>PFAS chemicals are persistent environmental contaminants</title> <meta name="description" content="PFAS chemicals are widely used, long-lasting chemicals. They are synthetic compounds used in a variety of consumer products." /> <link rel="canonical" href="https://www.thermofisher.com/blog/analyteguru/a-primer-on-pfas-chemicals-here-there-and-everywhere-2/" /> <meta property="og:locale" content="en_US" /> <meta property="og:type" content="article" /> <meta property="og:title" content="A Primer on PFAS Chemicals: Here, There and Everywhere" /> <meta property="og:description" content="PFAS chemicals are widely used, long-lasting chemicals. They are synthetic compounds used in a variety of consumer products." /> <meta property="og:url" content="https://www.thermofisher.com/blog/analyteguru/a-primer-on-pfas-chemicals-here-there-and-everywhere-2/" /> <meta property="og:site_name" content="AnalyteGuru" /> <meta property="article:publisher" content="https://www.facebook.com/ChromatographySolutions" /> <meta property="article:published_time" content="2023-03-22T14:15:18+00:00" /> <meta property="article:modified_time" content="2024-04-25T21:52:08+00:00" /> <meta property="og:image" content="https://www.thermofisher.com/blog/analyteguru/wp-content/uploads/sites/25/2023/06/20754-og.jpg" /> <meta property="og:image:width" content="998" /> <meta property="og:image:height" content="607" /> <meta property="og:image:type" content="image/jpeg" /> <meta name="author" content="AnalyteGuru Staff" /> <meta name="twitter:card" content="summary_large_image" /> <meta name="twitter:creator" content="@ChromSolutions" /> <meta name="twitter:site" content="@ChromSolutions" /> <meta name="twitter:label1" content="Written by" /> <meta name="twitter:data1" content="AnalyteGuru Staff" /> <meta name="twitter:label2" content="Est. reading time" /> <meta name="twitter:data2" content="3 minutes" /> <script type="application/ld+json" class="yoast-schema-graph">{"@context":"https://schema.org","@graph":[{"@type":"WebPage","@id":"https://www.thermofisher.com/blog/analyteguru/a-primer-on-pfas-chemicals-here-there-and-everywhere-2/","url":"https://www.thermofisher.com/blog/analyteguru/a-primer-on-pfas-chemicals-here-there-and-everywhere-2/","name":"PFAS chemicals are persistent environmental contaminants","isPartOf":{"@id":"https://www.thermofisher.com/blog/analyteguru/#website"},"primaryImageOfPage":{"@id":"https://www.thermofisher.com/blog/analyteguru/a-primer-on-pfas-chemicals-here-there-and-everywhere-2/#primaryimage"},"image":{"@id":"https://www.thermofisher.com/blog/analyteguru/a-primer-on-pfas-chemicals-here-there-and-everywhere-2/#primaryimage"},"thumbnailUrl":"https://www.thermofisher.com/blog/analyteguru/wp-content/uploads/sites/25/2023/06/20754-og.jpg","datePublished":"2023-03-22T14:15:18+00:00","dateModified":"2024-04-25T21:52:08+00:00","author":{"@id":"https://www.thermofisher.com/blog/analyteguru/#/schema/person/47226155467d66d692f24162ee320270"},"description":"PFAS chemicals are widely used, long-lasting chemicals. They are synthetic compounds used in a variety of consumer products.","breadcrumb":{"@id":"https://www.thermofisher.com/blog/analyteguru/a-primer-on-pfas-chemicals-here-there-and-everywhere-2/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https://www.thermofisher.com/blog/analyteguru/a-primer-on-pfas-chemicals-here-there-and-everywhere-2/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https://www.thermofisher.com/blog/analyteguru/a-primer-on-pfas-chemicals-here-there-and-everywhere-2/#primaryimage","url":"https://www.thermofisher.com/blog/analyteguru/wp-content/uploads/sites/25/2023/06/20754-og.jpg","contentUrl":"https://www.thermofisher.com/blog/analyteguru/wp-content/uploads/sites/25/2023/06/20754-og.jpg","width":998,"height":607},{"@type":"BreadcrumbList","@id":"https://www.thermofisher.com/blog/analyteguru/a-primer-on-pfas-chemicals-here-there-and-everywhere-2/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://www.thermofisher.com/blog/analyteguru/"},{"@type":"ListItem","position":2,"name":"A Primer on PFAS Chemicals: Here, There and Everywhere"}]},{"@type":"WebSite","@id":"https://www.thermofisher.com/blog/analyteguru/#website","url":"https://www.thermofisher.com/blog/analyteguru/","name":"AnalyteGuru","description":"Your educational resource for biopharma, pharma, environmental, food and agriculture, industrial, and clinical labs","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://www.thermofisher.com/blog/analyteguru/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https://www.thermofisher.com/blog/analyteguru/#/schema/person/47226155467d66d692f24162ee320270","name":"AnalyteGuru Staff","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https://www.thermofisher.com/blog/analyteguru/#/schema/person/image/","url":"https://secure.gravatar.com/avatar/13dc4fe276cbef4815beab3822073707?s=96&d=mm&r=g","contentUrl":"https://secure.gravatar.com/avatar/13dc4fe276cbef4815beab3822073707?s=96&d=mm&r=g","caption":"AnalyteGuru Staff"},"url":"https://www.thermofisher.com/blog/author/kerrycolligan/"}]}</script> <!-- / Yoast SEO Premium plugin. --> <link rel='dns-prefetch' href='//www.thermofisher.com' /> <link rel='dns-prefetch' href='//players.brightcove.net' /> <link rel='dns-prefetch' href='//use.fontawesome.com' /> <link rel="alternate" type="application/rss+xml" title="AnalyteGuru &raquo; Feed" href="https://www.thermofisher.com/blog/analyteguru/feed/" /> <link rel="alternate" type="application/rss+xml" title="AnalyteGuru &raquo; Comments Feed" href="https://www.thermofisher.com/blog/analyteguru/comments/feed/" /> <link rel="alternate" type="application/rss+xml" title="AnalyteGuru &raquo; A Primer on PFAS Chemicals: Here, There and Everywhere Comments Feed" href="https://www.thermofisher.com/blog/analyteguru/a-primer-on-pfas-chemicals-here-there-and-everywhere-2/feed/" /> <!-- Optimizely tracking code --> <script src="https://cdn.optimizely.com/js/8156647427.js"></script> <!-- Hotjar Tracking Code for https://www.thermofisher.com/blog --> <script> (function(h,o,t,j,a,r){ h.hj=h.hj||function(){(h.hj.q=h.hj.q||[]).push(arguments)}; h._hjSettings={hjid:373708,hjsv:5}; a=o.getElementsByTagName('head')[0]; r=o.createElement('script');r.async=1; r.src=t+h._hjSettings.hjid+j+h._hjSettings.hjsv; a.appendChild(r); })(window,document,'//static.hotjar.com/c/hotjar-','.js?sv='); </script> <!-- This site uses the Google Analytics by MonsterInsights plugin v9.2.0 - Using Analytics tracking - https://www.monsterinsights.com/ --> <script src="//www.googletagmanager.com/gtag/js?id=G-TJ18KZWFVE" data-cfasync="false" data-wpfc-render="false" type="text/javascript" async></script> <script data-cfasync="false" data-wpfc-render="false" type="text/javascript"> var mi_version = '9.2.0'; var mi_track_user = true; var mi_no_track_reason = ''; var MonsterInsightsDefaultLocations = {"page_location":"https:\/\/admin.acceleratingscience.com\/analyteguru\/a-primer-on-pfas-chemicals-here-there-and-everywhere-2\/"}; if ( typeof MonsterInsightsPrivacyGuardFilter === 'function' ) { var MonsterInsightsLocations = (typeof MonsterInsightsExcludeQuery === 'object') ? MonsterInsightsPrivacyGuardFilter( MonsterInsightsExcludeQuery ) : MonsterInsightsPrivacyGuardFilter( MonsterInsightsDefaultLocations ); } else { var MonsterInsightsLocations = (typeof MonsterInsightsExcludeQuery === 'object') ? MonsterInsightsExcludeQuery : MonsterInsightsDefaultLocations; } var disableStrs = [ 'ga-disable-G-TJ18KZWFVE', ]; /* Function to detect opted out users */ function __gtagTrackerIsOptedOut() { for (var index = 0; index < disableStrs.length; index++) { if (document.cookie.indexOf(disableStrs[index] + '=true') > -1) { return true; } } return false; } /* Disable tracking if the opt-out cookie exists. */ if (__gtagTrackerIsOptedOut()) { for (var index = 0; index < disableStrs.length; index++) { window[disableStrs[index]] = true; } } /* Opt-out function */ function __gtagTrackerOptout() { for (var index = 0; index < disableStrs.length; index++) { document.cookie = disableStrs[index] + '=true; expires=Thu, 31 Dec 2099 23:59:59 UTC; path=/'; window[disableStrs[index]] = true; } } if ('undefined' === typeof gaOptout) { function gaOptout() { __gtagTrackerOptout(); } } window.dataLayer = window.dataLayer || []; window.MonsterInsightsDualTracker = { helpers: {}, trackers: {}, }; if (mi_track_user) { function __gtagDataLayer() { dataLayer.push(arguments); } function __gtagTracker(type, name, parameters) { if (!parameters) { parameters = {}; } if (parameters.send_to) { __gtagDataLayer.apply(null, arguments); return; } if (type === 'event') { parameters.send_to = monsterinsights_frontend.v4_id; var hookName = name; if (typeof parameters['event_category'] !== 'undefined') { hookName = parameters['event_category'] + ':' + name; } if (typeof MonsterInsightsDualTracker.trackers[hookName] !== 'undefined') { MonsterInsightsDualTracker.trackers[hookName](parameters); } else { __gtagDataLayer('event', name, parameters); } } else { __gtagDataLayer.apply(null, arguments); } } __gtagTracker('js', new Date()); __gtagTracker('set', { 'developer_id.dZGIzZG': true, }); if ( MonsterInsightsLocations.page_location ) { __gtagTracker('set', MonsterInsightsLocations); } __gtagTracker('config', 'G-TJ18KZWFVE', {"use_amp_client_id":"true","forceSSL":"true","link_attribution":"true"} ); window.gtag = __gtagTracker; (function () { /* https://developers.google.com/analytics/devguides/collection/analyticsjs/ */ /* ga and __gaTracker compatibility shim. */ var noopfn = function () { return null; }; var newtracker = function () { return new Tracker(); }; var Tracker = function () { return null; }; var p = Tracker.prototype; p.get = noopfn; p.set = noopfn; p.send = function () { var args = Array.prototype.slice.call(arguments); args.unshift('send'); __gaTracker.apply(null, args); }; var __gaTracker = function () { var len = arguments.length; if (len === 0) { return; } var f = arguments[len - 1]; if (typeof f !== 'object' || f === null || typeof f.hitCallback !== 'function') { if ('send' === arguments[0]) { var hitConverted, hitObject = false, action; if ('event' === arguments[1]) { if ('undefined' !== typeof arguments[3]) { hitObject = { 'eventAction': arguments[3], 'eventCategory': arguments[2], 'eventLabel': arguments[4], 'value': arguments[5] ? arguments[5] : 1, } } } if ('pageview' === arguments[1]) { if ('undefined' !== typeof arguments[2]) { hitObject = { 'eventAction': 'page_view', 'page_path': arguments[2], } } } if (typeof arguments[2] === 'object') { hitObject = arguments[2]; } if (typeof arguments[5] === 'object') { Object.assign(hitObject, arguments[5]); } if ('undefined' !== typeof arguments[1].hitType) { hitObject = arguments[1]; if ('pageview' === hitObject.hitType) { hitObject.eventAction = 'page_view'; } } if (hitObject) { action = 'timing' === arguments[1].hitType ? 'timing_complete' : hitObject.eventAction; hitConverted = mapArgs(hitObject); __gtagTracker('event', action, hitConverted); } } return; } function mapArgs(args) { var arg, hit = {}; var gaMap = { 'eventCategory': 'event_category', 'eventAction': 'event_action', 'eventLabel': 'event_label', 'eventValue': 'event_value', 'nonInteraction': 'non_interaction', 'timingCategory': 'event_category', 'timingVar': 'name', 'timingValue': 'value', 'timingLabel': 'event_label', 'page': 'page_path', 'location': 'page_location', 'title': 'page_title', 'referrer' : 'page_referrer', }; for (arg in args) { if (!(!args.hasOwnProperty(arg) || !gaMap.hasOwnProperty(arg))) { hit[gaMap[arg]] = args[arg]; } else { hit[arg] = args[arg]; } } return hit; } try { f.hitCallback(); } catch (ex) { } }; __gaTracker.create = newtracker; __gaTracker.getByName = newtracker; __gaTracker.getAll = function () { return []; }; __gaTracker.remove = noopfn; __gaTracker.loaded = true; window['__gaTracker'] = __gaTracker; })(); } else { console.log(""); (function () { function __gtagTracker() { return null; } window['__gtagTracker'] = __gtagTracker; window['gtag'] = __gtagTracker; })(); } </script> <!-- / Google Analytics by MonsterInsights --> <link rel='stylesheet' id='accelerating-science-blogs-css' href='https://www.thermofisher.com/blog/analyteguru/wp-content/themes/accelerating-science-multilingual-blogs/style.css?ver=1.2.9.3' type='text/css' media='all' /> <link rel='stylesheet' id='wp-block-library-css' href='https://www.thermofisher.com/blog//wp-includes/css/dist/block-library/style.min.css?ver=6.6.1' type='text/css' media='all' /> <style id='classic-theme-styles-inline-css' type='text/css'> /*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} </style> <style id='global-styles-inline-css' type='text/css'> :root{--wp--preset--aspect-ratio--square: 1;--wp--preset--aspect-ratio--4-3: 4/3;--wp--preset--aspect-ratio--3-4: 3/4;--wp--preset--aspect-ratio--3-2: 3/2;--wp--preset--aspect-ratio--2-3: 2/3;--wp--preset--aspect-ratio--16-9: 16/9;--wp--preset--aspect-ratio--9-16: 9/16;--wp--preset--color--black: #000000;--wp--preset--color--cyan-bluish-gray: #abb8c3;--wp--preset--color--white: #ffffff;--wp--preset--color--pale-pink: #f78da7;--wp--preset--color--vivid-red: #cf2e2e;--wp--preset--color--luminous-vivid-orange: #ff6900;--wp--preset--color--luminous-vivid-amber: #fcb900;--wp--preset--color--light-green-cyan: #7bdcb5;--wp--preset--color--vivid-green-cyan: #00d084;--wp--preset--color--pale-cyan-blue: #8ed1fc;--wp--preset--color--vivid-cyan-blue: #0693e3;--wp--preset--color--vivid-purple: #9b51e0;--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple: linear-gradient(135deg,rgba(6,147,227,1) 0%,rgb(155,81,224) 100%);--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan: linear-gradient(135deg,rgb(122,220,180) 0%,rgb(0,208,130) 100%);--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange: linear-gradient(135deg,rgba(252,185,0,1) 0%,rgba(255,105,0,1) 100%);--wp--preset--gradient--luminous-vivid-orange-to-vivid-red: linear-gradient(135deg,rgba(255,105,0,1) 0%,rgb(207,46,46) 100%);--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray: linear-gradient(135deg,rgb(238,238,238) 0%,rgb(169,184,195) 100%);--wp--preset--gradient--cool-to-warm-spectrum: linear-gradient(135deg,rgb(74,234,220) 0%,rgb(151,120,209) 20%,rgb(207,42,186) 40%,rgb(238,44,130) 60%,rgb(251,105,98) 80%,rgb(254,248,76) 100%);--wp--preset--gradient--blush-light-purple: linear-gradient(135deg,rgb(255,206,236) 0%,rgb(152,150,240) 100%);--wp--preset--gradient--blush-bordeaux: linear-gradient(135deg,rgb(254,205,165) 0%,rgb(254,45,45) 50%,rgb(107,0,62) 100%);--wp--preset--gradient--luminous-dusk: linear-gradient(135deg,rgb(255,203,112) 0%,rgb(199,81,192) 50%,rgb(65,88,208) 100%);--wp--preset--gradient--pale-ocean: linear-gradient(135deg,rgb(255,245,203) 0%,rgb(182,227,212) 50%,rgb(51,167,181) 100%);--wp--preset--gradient--electric-grass: linear-gradient(135deg,rgb(202,248,128) 0%,rgb(113,206,126) 100%);--wp--preset--gradient--midnight: linear-gradient(135deg,rgb(2,3,129) 0%,rgb(40,116,252) 100%);--wp--preset--font-size--small: 13px;--wp--preset--font-size--medium: 20px;--wp--preset--font-size--large: 36px;--wp--preset--font-size--x-large: 42px;--wp--preset--spacing--20: 0.44rem;--wp--preset--spacing--30: 0.67rem;--wp--preset--spacing--40: 1rem;--wp--preset--spacing--50: 1.5rem;--wp--preset--spacing--60: 2.25rem;--wp--preset--spacing--70: 3.38rem;--wp--preset--spacing--80: 5.06rem;--wp--preset--shadow--natural: 6px 6px 9px rgba(0, 0, 0, 0.2);--wp--preset--shadow--deep: 12px 12px 50px rgba(0, 0, 0, 0.4);--wp--preset--shadow--sharp: 6px 6px 0px rgba(0, 0, 0, 0.2);--wp--preset--shadow--outlined: 6px 6px 0px -3px rgba(255, 255, 255, 1), 6px 6px rgba(0, 0, 0, 1);--wp--preset--shadow--crisp: 6px 6px 0px rgba(0, 0, 0, 1);}:where(.is-layout-flex){gap: 0.5em;}:where(.is-layout-grid){gap: 0.5em;}body .is-layout-flex{display: flex;}.is-layout-flex{flex-wrap: wrap;align-items: center;}.is-layout-flex > :is(*, div){margin: 0;}body .is-layout-grid{display: grid;}.is-layout-grid > :is(*, div){margin: 0;}:where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;}:where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;}.has-black-color{color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-color{color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-color{color: var(--wp--preset--color--white) !important;}.has-pale-pink-color{color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-color{color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-color{color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-color{color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-color{color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-color{color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-color{color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-color{color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-color{color: var(--wp--preset--color--vivid-purple) !important;}.has-black-background-color{background-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-background-color{background-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-background-color{background-color: var(--wp--preset--color--white) !important;}.has-pale-pink-background-color{background-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-background-color{background-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-background-color{background-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-background-color{background-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-background-color{background-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-background-color{background-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-background-color{background-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-background-color{background-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-background-color{background-color: var(--wp--preset--color--vivid-purple) !important;}.has-black-border-color{border-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-border-color{border-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-border-color{border-color: var(--wp--preset--color--white) !important;}.has-pale-pink-border-color{border-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-border-color{border-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-border-color{border-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-border-color{border-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-border-color{border-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-border-color{border-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-border-color{border-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-border-color{border-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-border-color{border-color: var(--wp--preset--color--vivid-purple) !important;}.has-vivid-cyan-blue-to-vivid-purple-gradient-background{background: var(--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple) !important;}.has-light-green-cyan-to-vivid-green-cyan-gradient-background{background: var(--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan) !important;}.has-luminous-vivid-amber-to-luminous-vivid-orange-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange) !important;}.has-luminous-vivid-orange-to-vivid-red-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-orange-to-vivid-red) !important;}.has-very-light-gray-to-cyan-bluish-gray-gradient-background{background: var(--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray) !important;}.has-cool-to-warm-spectrum-gradient-background{background: var(--wp--preset--gradient--cool-to-warm-spectrum) !important;}.has-blush-light-purple-gradient-background{background: var(--wp--preset--gradient--blush-light-purple) !important;}.has-blush-bordeaux-gradient-background{background: var(--wp--preset--gradient--blush-bordeaux) !important;}.has-luminous-dusk-gradient-background{background: var(--wp--preset--gradient--luminous-dusk) !important;}.has-pale-ocean-gradient-background{background: var(--wp--preset--gradient--pale-ocean) !important;}.has-electric-grass-gradient-background{background: var(--wp--preset--gradient--electric-grass) !important;}.has-midnight-gradient-background{background: var(--wp--preset--gradient--midnight) !important;}.has-small-font-size{font-size: var(--wp--preset--font-size--small) !important;}.has-medium-font-size{font-size: var(--wp--preset--font-size--medium) !important;}.has-large-font-size{font-size: var(--wp--preset--font-size--large) !important;}.has-x-large-font-size{font-size: var(--wp--preset--font-size--x-large) !important;} :where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;} :where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;} :root :where(.wp-block-pullquote){font-size: 1.5em;line-height: 1.6;} </style> <link rel='stylesheet' id='gforms_reset_css-css' href='https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/gravityforms/legacy/css/formreset.min.css?ver=2.8.17' type='text/css' media='all' /> <link rel='stylesheet' id='gforms_formsmain_css-css' href='https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/gravityforms/legacy/css/formsmain.min.css?ver=2.8.17' type='text/css' media='all' /> <link rel='stylesheet' id='gforms_ready_class_css-css' href='https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/gravityforms/legacy/css/readyclass.min.css?ver=2.8.17' type='text/css' media='all' /> <link rel='stylesheet' id='gforms_browsers_css-css' href='https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/gravityforms/legacy/css/browsers.min.css?ver=2.8.17' type='text/css' media='all' /> <link rel='stylesheet' id='globals-css' href='https://www.thermofisher.com/blog/analyteguru/wp-content/themes/accelerating-science-multilingual-blogs/global-style.css?ver=1.2.9.3' type='text/css' media='all' /> <link rel='stylesheet' id='brightcove-pip-css-css' href='https://players.brightcove.net/videojs-pip/1/videojs-pip.css?ver=2.8.7' type='text/css' media='all' /> <link rel='stylesheet' id='brightcove-playlist-css' href='https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/brightcove-video-connect/assets/css/brightcove_playlist.min.css?ver=2.8.7' type='text/css' media='all' /> <link rel='stylesheet' id='bfa-font-awesome-css' href='https://use.fontawesome.com/releases/v5.15.4/css/all.css?ver=2.0.3' type='text/css' media='all' /> <script type="text/javascript" src="https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/google-analytics-premium/assets/js/frontend-gtag.min.js?ver=9.2.0" id="monsterinsights-frontend-script-js" async="async" data-wp-strategy="async"></script> <script data-cfasync="false" data-wpfc-render="false" type="text/javascript" id='monsterinsights-frontend-script-js-extra'>/* <![CDATA[ */ var monsterinsights_frontend = {"js_events_tracking":"true","download_extensions":"doc,pdf,ppt,zip,xls,docx,pptx,xlsx","inbound_paths":"[{\"path\":\"\\\/go\\\/\",\"label\":\"affiliate\"},{\"path\":\"\\\/recommend\\\/\",\"label\":\"affiliate\"}]","home_url":"https:\/\/admin.acceleratingscience.com\/analyteguru","hash_tracking":"false","v4_id":"G-TJ18KZWFVE"};/* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/jquery/jquery.min.js?ver=3.7.1" id="jquery-core-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1" id="jquery-migrate-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/mashshare-google-analytics/assets/js/mashga.min.js?ver=1.0.9" id="mashga-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/underscore.min.js?ver=1.13.4" id="underscore-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/backbone.min.js?ver=1.5.0" id="backbone-js"></script> <script type="text/javascript" id="wp-api-js-js-extra"> /* <![CDATA[ */ var WP_API_Settings = {"root":"https:\/\/admin.acceleratingscience.com\/analyteguru","nonce":"ba522f8159"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/wp-search-live/public/assets/js/util--wp-api.js?ver=0.9" id="wp-api-js-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/gravityforms/js/jquery.json.min.js?ver=2.8.17" id="gform_json-js"></script> <script type="text/javascript" id="gform_gravityforms-js-extra"> /* <![CDATA[ */ var gf_global = {"gf_currency_config":{"name":"U.S. Dollar","symbol_left":"$","symbol_right":"","symbol_padding":"","thousand_separator":",","decimal_separator":".","decimals":2,"code":"USD"},"base_url":"https:\/\/admin.acceleratingscience.com\/analyteguru\/wp-content\/plugins\/gravityforms","number_formats":[],"spinnerUrl":"https:\/\/admin.acceleratingscience.com\/analyteguru\/wp-content\/plugins\/gravityforms\/images\/spinner.svg","version_hash":"4a792b070322e711c2521ee9802c04ea","strings":{"newRowAdded":"New row added.","rowRemoved":"Row removed","formSaved":"The form has been saved. The content contains the link to return and complete the form."}}; var gf_global = {"gf_currency_config":{"name":"U.S. Dollar","symbol_left":"$","symbol_right":"","symbol_padding":"","thousand_separator":",","decimal_separator":".","decimals":2,"code":"USD"},"base_url":"https:\/\/admin.acceleratingscience.com\/analyteguru\/wp-content\/plugins\/gravityforms","number_formats":[],"spinnerUrl":"https:\/\/admin.acceleratingscience.com\/analyteguru\/wp-content\/plugins\/gravityforms\/images\/spinner.svg","version_hash":"4a792b070322e711c2521ee9802c04ea","strings":{"newRowAdded":"New row added.","rowRemoved":"Row removed","formSaved":"The form has been saved. The content contains the link to return and complete the form."}}; var gform_i18n = {"datepicker":{"days":{"monday":"Mo","tuesday":"Tu","wednesday":"We","thursday":"Th","friday":"Fr","saturday":"Sa","sunday":"Su"},"months":{"january":"January","february":"February","march":"March","april":"April","may":"May","june":"June","july":"July","august":"August","september":"September","october":"October","november":"November","december":"December"},"firstDay":1,"iconText":"Select date"}}; var gf_legacy_multi = {"1":"1","2":"1"}; var gform_gravityforms = {"strings":{"invalid_file_extension":"This type of file is not allowed. Must be one of the following:","delete_file":"Delete this file","in_progress":"in progress","file_exceeds_limit":"File exceeds size limit","illegal_extension":"This type of file is not allowed.","max_reached":"Maximum number of files reached","unknown_error":"There was a problem while saving the file on the server","currently_uploading":"Please wait for the uploading to complete","cancel":"Cancel","cancel_upload":"Cancel this upload","cancelled":"Cancelled"},"vars":{"images_url":"https:\/\/admin.acceleratingscience.com\/analyteguru\/wp-content\/plugins\/gravityforms\/images"}}; /* ]]> */ </script> <script type="text/javascript" id="gform_gravityforms-js-before"> /* <![CDATA[ */ var gform;gform||(document.addEventListener("gform_main_scripts_loaded",function(){gform.scriptsLoaded=!0}),window.addEventListener("DOMContentLoaded",function(){gform.domLoaded=!0}),gform={domLoaded:!1,scriptsLoaded:!1,initializeOnLoaded:function(o){gform.domLoaded&&gform.scriptsLoaded?o():!gform.domLoaded&&gform.scriptsLoaded?window.addEventListener("DOMContentLoaded",o):document.addEventListener("gform_main_scripts_loaded",o)},hooks:{action:{},filter:{}},addAction:function(o,n,r,t){gform.addHook("action",o,n,r,t)},addFilter:function(o,n,r,t){gform.addHook("filter",o,n,r,t)},doAction:function(o){gform.doHook("action",o,arguments)},applyFilters:function(o){return gform.doHook("filter",o,arguments)},removeAction:function(o,n){gform.removeHook("action",o,n)},removeFilter:function(o,n,r){gform.removeHook("filter",o,n,r)},addHook:function(o,n,r,t,i){null==gform.hooks[o][n]&&(gform.hooks[o][n]=[]);var e=gform.hooks[o][n];null==i&&(i=n+"_"+e.length),gform.hooks[o][n].push({tag:i,callable:r,priority:t=null==t?10:t})},doHook:function(n,o,r){var t;if(r=Array.prototype.slice.call(r,1),null!=gform.hooks[n][o]&&((o=gform.hooks[n][o]).sort(function(o,n){return o.priority-n.priority}),o.forEach(function(o){"function"!=typeof(t=o.callable)&&(t=window[t]),"action"==n?t.apply(null,r):r[0]=t.apply(null,r)})),"filter"==n)return r[0]},removeHook:function(o,n,t,i){var r;null!=gform.hooks[o][n]&&(r=(r=gform.hooks[o][n]).filter(function(o,n,r){return!!(null!=i&&i!=o.tag||null!=t&&t!=o.priority)}),gform.hooks[o][n]=r)}}); /* ]]> */ </script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/gravityforms/js/gravityforms.min.js?ver=2.8.17" id="gform_gravityforms-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/gravityforms/js/chosen.jquery.min.js?ver=2.8.17" id="gform_chosen-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/gravityforms/assets/js/dist/utils.min.js?ver=50c7bea9c2320e16728e44ae9fde5f26" id="gform_gravityforms_utils-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog/analyteguru/wp-content/themes/accelerating-science-multilingual-blogs/js/single-scripts.js?ver=1.2.9.3" id="single-scripts-js"></script> <link rel="https://api.w.org/" href="https://www.thermofisher.com/blog/analyteguru/wp-json/" /><link rel="alternate" title="JSON" type="application/json" href="https://www.thermofisher.com/blog/analyteguru/wp-json/wp/v2/posts/599" /><link rel="EditURI" type="application/rsd+xml" title="RSD" href="https://www.thermofisher.com/blog/xmlrpc.php?rsd" /> <link rel='shortlink' href='https://www.thermofisher.com/blog/analyteguru/?p=599' /> <link rel="alternate" title="oEmbed (JSON)" type="application/json+oembed" href="https://www.thermofisher.com/blog/analyteguru/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fanalyteguru%2Fa-primer-on-pfas-chemicals-here-there-and-everywhere-2%2F" /> <link rel="alternate" title="oEmbed (XML)" type="text/xml+oembed" href="https://www.thermofisher.com/blog/analyteguru/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fanalyteguru%2Fa-primer-on-pfas-chemicals-here-there-and-everywhere-2%2F&#038;format=xml" /> <!-- Stream WordPress user activity plugin v4.0.2 --> <link rel="icon" href="https://www.thermofisher.com/blog/analyteguru/wp-content/themes/accelerating-science-multilingual-blogs/images/favicon.ico" /> <script type="application/ld+json"> {"@context":"http:\/\/schema.org","@type":"BlogPosting","mainEntityofPage":{"@type":"WebPage","@id":"https:\/\/www.thermofisher.com\/blog\/analyteguru\/a-primer-on-pfas-chemicals-here-there-and-everywhere-2\/"},"headline":"A Primer on PFAS Chemicals: Here, There and Everywhere","datePublished":"03\/22\/2023","dateModified":"03\/22\/2023","publisher":{"@type":"Organization","name":"Thermo Fisher Scientific","URL":"https:\/\/www.thermofisher.com\/us\/en\/home.html","logo":{"@type":"ImageObject","url":"https:\/\/www.thermofisher.com\/content\/dam\/LifeTech\/Images\/Header\/logo-color.png"}},"image":{"@type":"ImageObject","url":"https:\/\/admin.acceleratingscience.com\/analyteguru\/wp-content\/uploads\/sites\/25\/2023\/06\/20754-og.jpg","width":998,"height":607},"keywords":"LC-MS\/MS, ","author":{"@type":"Person","name":"AnalyteGuru Staff"}} </script> <script type="text/javascript" src="https://www.thermofisher.com/etc/designs/lifetech/clientlibs/digitaldata.js"></script> <script id="tagmanager" type="text/javascript" src='https://assets.adobedtm.com/launch-ENeecb77f1160a4928a492ff040f7110c7.min.js' defer="defer"></script> <script> (function($) { $(document).ready(function() { digitalData.setPageType('blog'); }) })(jQuery); </script> <script type="text/javascript" src="https://www.thermofisher.com/etc/designs/lifetech/clientlibs/digitaldata.js" defer="defer"></script> <script id="tagmanager" type="text/javascript" src='https://assets.adobedtm.com/launch-ENeecb77f1160a4928a492ff040f7110c7.min.js' defer="defer"></script> <script> (function($) { $(document).ready(function() { digitalData.setPageType('blog'); }) })(jQuery); </script> <style type="text/css" id="wp-custom-css"> .hero-banner { position: relative; } .hero-banner::before { content: ''; position: absolute; background: rgba(0,0,0,.3); top: 0; left: 0; right: 0; bottom: 0; } </style> </head> <body class="post-template-default single single-post postid-599 single-format-standard header-image full-width-content genesis-breadcrumbs-hidden"><div class="site-container"><header class="site-header"><div class="wrap"><div class="title-area"><p class="site-title"><a href="https://www.thermofisher.com/" title="Thermo Fisher Scientific">Thermo Fisher Scientific</a></p><p class="site-description">Your educational resource for biopharma, pharma, environmental, food and agriculture, industrial, and clinical labs</p></div><div class="widget-area header-widget-area"><section id="nav_menu-2" class="widget widget_nav_menu"><div class="widget-wrap"><nav class="nav-header"><ul id="menu-main-menu" class="menu genesis-nav-menu"><li id="menu-item-13046" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children menu-item-13046"><a><span >Categories</span></a> <ul class="sub-menu"> <li id="menu-item-13047" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13047"><a href="https://www.thermofisher.com/blog/materials/"><span >Advancing Materials</span></a></li> <li id="menu-item-13048" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13048"><a href="https://www.thermofisher.com/blog/mining/"><span >Advancing Mining</span></a></li> <li id="menu-item-13063" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13063"><a href="https://www.thermofisher.com/blog/analyteguru/"><span >AnalyteGuru</span></a></li> <li id="menu-item-13049" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13049"><a href="https://www.thermofisher.com/blog/metals/"><span >Analyzing Metals</span></a></li> <li id="menu-item-13050" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13050"><a href="https://www.thermofisher.com/blog/ask-a-scientist/"><span >Ask a Scientist</span></a></li> <li id="menu-item-13051" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13051"><a href="https://www.thermofisher.com/blog/behindthebench/"><span >Behind the Bench</span></a></li> <li id="menu-item-13052" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13052"><a href="https://www.thermofisher.com/blog/biotechnology/"><span >Biotech at Scale</span></a></li> <li id="menu-item-13053" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13053"><a href="https://www.thermofisher.com/blog/clinical-conversations/"><span >Clinical Conversations</span></a></li> <li id="menu-item-13054" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13054"><a href="https://www.thermofisher.com/blog/food/"><span >Examining Food</span></a></li> <li id="menu-item-13055" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13055"><a href="https://www.thermofisher.com/blog/identifying-threats/"><span >Identifying Threats</span></a></li> <li id="menu-item-13056" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13056"><a href="https://www.thermofisher.com/blog/semiconductors/"><span >Illuminating Semiconductors</span></a></li> <li id="menu-item-13057" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13057"><a href="https://www.thermofisher.com/blog/atomic-resolution/"><span >Life in Atomic Resolution</span></a></li> <li id="menu-item-13058" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13058"><a href="https://www.thermofisher.com/blog/life-in-the-lab/"><span >Life in the Lab</span></a></li> <li id="menu-item-13059" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13059"><a href="https://www.thermofisher.com/blog/oempowered/"><span >OEMpowered</span></a></li> <li id="menu-item-13060" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13060"><a href="https://www.thermofisher.com/blog/connectedlab/"><span >The Connected Lab</span></a></li> </ul> </li> <li id="menu-item-13061" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13061"><a href="https://www.thermofisher.com/blog/about-us/"><span >About Us</span></a></li> <li id="menu-item-13062" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-13062"><a href="https://www.thermofisher.com/blog/contact-us/?site=analyteguru"><span >Contact</span></a></li> </ul></nav></div></section> </div><div class="breadcrumb"><span class="breadcrumb-link-wrap"><a href="https://www.thermofisher.com/blog/?">Accelerating Science</a></span><span class="breadcrumb-link-wrap"><a class="breadcrumb-link" href="https://www.thermofisher.com/blog/analyteguru/"><span class="breadcrumb-link-text-wrap">AnalyteGuru</span></a><meta ></span> <span aria-label="breadcrumb separator">/</span> <span class="breadcrumb-link-wrap"><a class="breadcrumb-link" href="https://www.thermofisher.com/blog/analyteguru/lc-ms/"><span class="breadcrumb-link-text-wrap">LC-MS</span></a><meta ></span> <span aria-label="breadcrumb separator">/</span> <span class="breadcrumb-current-title">A Primer on PFAS Chemicals: Here, There and Everywhere</span></div></div></header><div class="site-inner"><div class="content-sidebar-wrap"><main class="content"><article class="post-599 post type-post status-publish format-standard has-post-thumbnail category-environmental category-lc-ms category-pfas tag-lc-ms-ms entry" aria-label="A Primer on PFAS Chemicals: Here, There and Everywhere"><header class="entry-header"><h1 class="entry-title">A Primer on PFAS Chemicals: Here, There and Everywhere</h1> <span class="post-info-author"> By <a href="https://www.thermofisher.com/blog/analyteguru/tf-author/vanessa-wright/" title="Posts by Vanessa Wright" rel="author">Vanessa Wright, Global Market Development Manager, Environmental and Food Safety, Chromatography and Mass Spectrometry, Thermo Fisher Scientific</a> </span> <span class="post-info-date"> 03.22.2023 </span> </header><div class="entry-content"><div class="lia-message-body-content"> <p>These days, everyone’s talking about per- and polyfluoralkyl substances (PFAS) — what they are, why they’re important, and how we can prevent their harmful effects on people and our planet. But how much do you really know about these pesky chemicals? This article breaks down the basics.</p> <h3 id="toc-hId-1155097401"><strong>All about PFAS: the &#8220;forever&#8221; chemicals</strong></h3> <p><img decoding="async" class="alignright wp-image-10431" src="https://www.thermofisher.com/blog/analyteguru/wp-content/uploads/sites/25/2023/06/PFAS-water-testing-300x205.jpg" alt="" width="398" height="272" srcset="https://www.thermofisher.com/blog/analyteguru/wp-content/uploads/sites/25/2023/06/PFAS-water-testing-300x205.jpg 300w, https://www.thermofisher.com/blog/analyteguru/wp-content/uploads/sites/25/2023/06/PFAS-water-testing-768x524.jpg 768w, https://www.thermofisher.com/blog/analyteguru/wp-content/uploads/sites/25/2023/06/PFAS-water-testing-96x65.jpg 96w, https://www.thermofisher.com/blog/analyteguru/wp-content/uploads/sites/25/2023/06/PFAS-water-testing.jpg 1001w" sizes="(max-width: 398px) 100vw, 398px" />PFAS chemicals are widely used, long-lasting chemicals. They are a large family of synthetic compounds used in a variety of consumer products and manufacturing processes. Due to their strong and stable carbon-fluorine bonds, these substances don’t break down and continue to bioaccumulate. Consequently, they remain some of the most persistent environmental contaminants seen today.</p> <h3 id="toc-hId-2042601082"><strong>PFAS are found all over the globe</strong></h3> <p>PFAS are found in water, air, and soil across the globe. Because of their widespread use over many years and their persistence in the environment, many PFAS are present in the blood of people and a variety of animals all over the world, and are found at low levels in a variety of food products.</p> <p>PFAS chemicals cycle through the environment daily in air, water, soil and sediments. Through this cycle, they bioaccumulate in fish, wildlife and humans.</p> <h3 id="toc-hId--1364862533"><strong>PFAS chemicals can be harmful to humans</strong></h3> <p>Most people are exposed to PFAS from drinking water and eating food that contain these chemicals. Scientific studies have shown that exposure to some PFAS in the environment may be linked to harmful health effects in humans and animals. According to the CDC and the World Health Organization, exposure to PFAS can increase cholesterol and cancer risks, as well as interfere with hormones and thyroid performance.</p> <h3 id="toc-hId--477358852"><strong>There’s plenty we will still don’t know about PFAS</strong></h3> <p>There are thousands of PFAS chemicals, and they are found in many different consumer, commercial and industrial products. This makes it challenging to study and assess the potential human health and environmental risks. Despite these challenges, researchers across the globe are working hard to answer critical questions about PFAS, including:</p> <ul> <li>How to better and more efficiently detect and measure PFAS in our air, water, fish and wildlife</li> <li>How much people are exposed to PFAS</li> <li>How harmful PFAS are to people and the environment</li> <li>How to remove PFAS from drinking water</li> <li>How to manage and dispose of PFAS</li> </ul> <p>Answers to these questions will help local, state, and global partners make more informed decisions on how best to protect human health and the environment.</p> <h3 id="toc-hId-410144829"><strong>LC-MS/MS is playing an important role in studying PFAS</strong></h3> <p>As the scientific community’s understanding of PFAS increases, regulatory bodies around the globe often update testing requirements to protect human health. This makes PFAS a fast-paced, dynamic field, where laboratories need to regularly keep up with changing regulations and the discovery of new contaminants.</p> <p>Standardized PFAS analytical methods use modern analytical techniques such as solid-phase extraction, combustion ion chromatography (CIC), <a href="https://www.thermofisher.com/us/en/home/industrial/mass-spectrometry/mass-spectrometry-learning-center/liquid-chromatography-mass-spectrometry-lc-ms-information.html" target="_blank" rel="nofollow noopener">liquid chromatography</a> (LC) and <a href="https://www.thermofisher.com/us/en/home/industrial/mass-spectrometry.html" target="_blank" rel="nofollow noopener">mass spectrometry</a> (MS) to separate, identify and quantify known PFAS in samples.</p> <h3 id="toc-hId-1297648510"><strong>Want to learn more about PFAS testing, technologies and methods?</strong></h3> <p>Download the whitepaper: PFAS Testing: <a href="https://www.thermofisher.com/us/en/home/global/forms/industrial/pfas-testing-technologies-meet-current-future-regulatory-standards.html" target="_blank" rel="nofollow noopener">Technologies you Need to Meet Current and Future Regulatory Standards</a><br />Register to view the expert roundtable event on demand: <a href="https://www.analyteguru.com/t5/Events/Why-is-PFAS-testing-so-challenging-EXPERT-ROUNDTABLE/ev-p/20312" target="_blank" rel="noopener">Why is PFAS testing so challenging?</a></p> </div> <h3 class="wp-block-heading" id="h-related-content"><strong>Related Content</strong></h3> <p>Blog: <a href="https://www.thermofisher.com/blog/analyteguru/automating-new-epa-pfas-drinking-water-testing-workflow-to-maximize-lab-productivity/" target="_blank" rel="noreferrer noopener">Automating New EPA PFAS Drinking Water Testing Workflow to Maximize Lab Productivity</a><br>Blog: <a href="https://www.thermofisher.com/blog/analyteguru/measuring-pfas-in-water-and-soil-top-questions-and-challenges/">Measuring PFAS in Water and Soil: Top Questions and Challenges</a><br>Blog: <a href="https://www.thermofisher.com/blog/analyteguru/analyzing-pfas-what-to-know-about-the-forever-chemicals/" target="_blank" rel="noreferrer noopener">Analyzing PFAS: What to Know About the ‘Forever Chemicals’</a></p> <p>On LinkedIn? Visit our <a href="https://www.linkedin.com/showcase/chromatography-&amp;-mass-spectrometry/posts/?feedView=all" target="_blank" rel="noreferrer noopener">LinkedIn page</a> #PFAS #WaterAnalysis #SoilAnalysis #EnvironmentalMonitoring</p> </div></article><section class="author-box"><h4 class="author-box-title">Vanessa Wright</h4><div class="author-box-content" itemprop="description">Vanessa Wright is Global Market Development Manager for Environmental and Food Safety, in the Chromatography and Mass Spectrometry group at Thermo Fisher Scientific, creating marketing campaigns showcasing complete workflow solutions for PFAS, pesticides and water testing for environmental and food analytical testing laboratories and research institutions. </div></section><div class="adjacent-entry-pagination pagination"><div class="pagination-previous alignleft"><i class="fa fa-icon fa-chevron-left"></i> <a href="https://www.thermofisher.com/blog/analyteguru/automating-biodiesel-quality-testing-with-gas-chromatography-gc/" rel="prev">Automating Biodiesel Quality Testing With Gas Chromatography (GC)</a></div><div class="pagination-next alignright"><a href="https://www.thermofisher.com/blog/analyteguru/pioneering-proteomics-mousetraps-webcasts-showcase-cutting-edge/" rel="next">Pioneering Proteomics &#8216;Mousetraps&#8217;: Webcasts Showcase Cutting-Edge Researchers</a> <i class="fa fa-icon fa-chevron-right"></i></div></div></main></div></div><footer class="site-footer"><div class="wrap"><div class="creds"><p class="footer-links"><a href="https://corporate.thermofisher.com/en/footer/privacy-statement.html" target="_blank" rel="noopener noreferrer">Privacy Statement</a><a href="https://corporate.thermofisher.com/en/footer/terms-and-conditions.html" target="_blank" rel="noopener noreferrer">Terms &amp; Conditions</a><a href="/blog/locations/">Locations</a><a href="/blog/sitemap/">Sitemap</a></p><p>&copy; 2024 <a href="https://www.thermofisher.com">Thermo Fisher Scientific</a>. All Rights Reserved.</p></div><p></p><span class="social-links"><p>Talk to us</p><a href="https://www.facebook.com/ChromatographySolutions" class="facebook" target="_blank" rel="noopener noreferrer"><i class="fa fa-icon fa-facebook"></i></a><a href="https://www.linkedin.com/showcase/chromatography-&-mass-spectrometry/" class="linkedin" target="_blank" rel="noopener noreferrer"><i class="fa fa-icon fa-linkedin"></i></a><a href="https://twitter.com/ChromSolutions" class="twitter" target="_blank" rel="noopener noreferrer"><i class="fa fa-icon fa-twitter"></i></a><a href="https://www.youtube.com/c/thermoscientific" class="youtube" target="_blank" rel="noopener noreferrer"><i class="fa fa-icon fa-youtube"></i></a></span></div></footer></div> <!-- WP Live Search --> <script type="text/html" id="wpls--tmpl"> <li class="search-result"> <a href="<%= post.link %>"> <div class="wpls--item-title-wrap"> <h4 class="wpls--item-title"><%= post.title %></h4> </div> </a> </li> </script> <script type="text/javascript"> /* MonsterInsights Scroll Tracking */ if ( typeof(jQuery) !== 'undefined' ) { jQuery( document ).ready(function(){ function monsterinsights_scroll_tracking_load() { if ( ( typeof(__gaTracker) !== 'undefined' && __gaTracker && __gaTracker.hasOwnProperty( "loaded" ) && __gaTracker.loaded == true ) || ( typeof(__gtagTracker) !== 'undefined' && __gtagTracker ) ) { (function(factory) { factory(jQuery); }(function($) { /* Scroll Depth */ "use strict"; var defaults = { percentage: true }; var $window = $(window), cache = [], scrollEventBound = false, lastPixelDepth = 0; /* * Plugin */ $.scrollDepth = function(options) { var startTime = +new Date(); options = $.extend({}, defaults, options); /* * Functions */ function sendEvent(action, label, scrollDistance, timing) { if ( 'undefined' === typeof MonsterInsightsObject || 'undefined' === typeof MonsterInsightsObject.sendEvent ) { return; } var paramName = action.toLowerCase(); var fieldsArray = { send_to: 'G-TJ18KZWFVE', non_interaction: true }; fieldsArray[paramName] = label; if (arguments.length > 3) { fieldsArray.scroll_timing = timing MonsterInsightsObject.sendEvent('event', 'scroll_depth', fieldsArray); } else { MonsterInsightsObject.sendEvent('event', 'scroll_depth', fieldsArray); } } function calculateMarks(docHeight) { return { '25%' : parseInt(docHeight * 0.25, 10), '50%' : parseInt(docHeight * 0.50, 10), '75%' : parseInt(docHeight * 0.75, 10), /* Cushion to trigger 100% event in iOS */ '100%': docHeight - 5 }; } function checkMarks(marks, scrollDistance, timing) { /* Check each active mark */ $.each(marks, function(key, val) { if ( $.inArray(key, cache) === -1 && scrollDistance >= val ) { sendEvent('Percentage', key, scrollDistance, timing); cache.push(key); } }); } function rounded(scrollDistance) { /* Returns String */ return (Math.floor(scrollDistance/250) * 250).toString(); } function init() { bindScrollDepth(); } /* * Public Methods */ /* Reset Scroll Depth with the originally initialized options */ $.scrollDepth.reset = function() { cache = []; lastPixelDepth = 0; $window.off('scroll.scrollDepth'); bindScrollDepth(); }; /* Add DOM elements to be tracked */ $.scrollDepth.addElements = function(elems) { if (typeof elems == "undefined" || !$.isArray(elems)) { return; } $.merge(options.elements, elems); /* If scroll event has been unbound from window, rebind */ if (!scrollEventBound) { bindScrollDepth(); } }; /* Remove DOM elements currently tracked */ $.scrollDepth.removeElements = function(elems) { if (typeof elems == "undefined" || !$.isArray(elems)) { return; } $.each(elems, function(index, elem) { var inElementsArray = $.inArray(elem, options.elements); var inCacheArray = $.inArray(elem, cache); if (inElementsArray != -1) { options.elements.splice(inElementsArray, 1); } if (inCacheArray != -1) { cache.splice(inCacheArray, 1); } }); }; /* * Throttle function borrowed from: * Underscore.js 1.5.2 * http://underscorejs.org * (c) 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors * Underscore may be freely distributed under the MIT license. */ function throttle(func, wait) { var context, args, result; var timeout = null; var previous = 0; var later = function() { previous = new Date; timeout = null; result = func.apply(context, args); }; return function() { var now = new Date; if (!previous) previous = now; var remaining = wait - (now - previous); context = this; args = arguments; if (remaining <= 0) { clearTimeout(timeout); timeout = null; previous = now; result = func.apply(context, args); } else if (!timeout) { timeout = setTimeout(later, remaining); } return result; }; } /* * Scroll Event */ function bindScrollDepth() { scrollEventBound = true; $window.on('scroll.scrollDepth', throttle(function() { /* * We calculate document and window height on each scroll event to * account for dynamic DOM changes. */ var docHeight = $(document).height(), winHeight = window.innerHeight ? window.innerHeight : $window.height(), scrollDistance = $window.scrollTop() + winHeight, /* Recalculate percentage marks */ marks = calculateMarks(docHeight), /* Timing */ timing = +new Date - startTime; checkMarks(marks, scrollDistance, timing); }, 500)); } init(); }; /* UMD export */ return $.scrollDepth; })); jQuery.scrollDepth(); } else { setTimeout(monsterinsights_scroll_tracking_load, 200); } } monsterinsights_scroll_tracking_load(); }); } /* End MonsterInsights Scroll Tracking */ </script><script type="text/javascript" id="wpls-script-js-extra"> /* <![CDATA[ */ var wp_search_vars = {"helperText":"one more character","api":"https:\/\/admin.acceleratingscience.com\/wp-json\/as\/v1\/all-posts\/25"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/wp-search-live/public/assets/js/wp-live-search.js?ver=0.9" id="wpls-script-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/comment-reply.min.js?ver=6.6.1" id="comment-reply-js" async="async" data-wp-strategy="async"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/dist/dom-ready.min.js?ver=f77871ff7694fffea381" id="wp-dom-ready-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/dist/hooks.min.js?ver=2810c76e705dd1a53b18" id="wp-hooks-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/dist/i18n.min.js?ver=5e580eb46a90c2b997e6" id="wp-i18n-js"></script> <script type="text/javascript" id="wp-i18n-js-after"> /* <![CDATA[ */ wp.i18n.setLocaleData( { 'text direction\u0004ltr': [ 'ltr' ] } ); /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/dist/a11y.min.js?ver=d90eebea464f6c09bfd5" id="wp-a11y-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/gravityforms/assets/js/dist/vendor-theme.min.js?ver=54e7080aa7a02c83aa61fae430b9d869" id="gform_gravityforms_theme_vendors-js"></script> <script type="text/javascript" id="gform_gravityforms_theme-js-extra"> /* <![CDATA[ */ var gform_theme_config = {"common":{"form":{"honeypot":{"version_hash":"4a792b070322e711c2521ee9802c04ea"}}},"hmr_dev":"","public_path":"https:\/\/admin.acceleratingscience.com\/analyteguru\/wp-content\/plugins\/gravityforms\/assets\/js\/dist\/"}; /* ]]> */ </script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/gravityforms/assets/js/dist/scripts-theme.min.js?ver=bab19fd84843dabc070e73326d787910" id="gform_gravityforms_theme-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/analyteguru/wp-content/plugins/gravityforms/js/placeholders.jquery.min.js?ver=2.8.17" id="gform_placeholder-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/jquery/ui/core.min.js?ver=1.13.3" id="jquery-ui-core-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/jquery/ui/tabs.min.js?ver=1.13.3" id="jquery-ui-tabs-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog/analyteguru/wp-content/themes/accelerating-science-multilingual-blogs/js/scripts.js?ver=1.2.9.3" id="scripts-js"></script> <script type="text/javascript" src="/-JVF2Mt77XrPue0oWQ_DN-r_/XEYukNG8mrG8EimE/LFhk/MBsdTQN/rVQM"></script></body></html>

Pages: 1 2 3 4 5 6 7 8 9 10