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class="site-inner"><div class="content-sidebar-wrap"><main class="content"><article class="post-1244 post type-post status-publish format-standard has-post-thumbnail category-elemental-geochemical-analysis category-material-handling category-portable-xrf tag-mining-2 tag-portable-xrf-2 tag-sample-preparation-mining tag-x-ray-fluorescence tag-xrf entry" aria-label="The Importance of Sample Preparation in Mining"><header class="entry-header"><h1 class="entry-title">The Importance of Sample Preparation in Mining</h1> <span class="post-info-author"> By <a href="https://www.thermofisher.com/blog/author/alireza-somarinthermofisher-com/" title="Posts by Ali Somarin" rel="author">Ali Somarin</a> </span> <span class="post-info-date"> 09.10.2013 </span> </header><div class="entry-content"><p>During the past few years, <a href="http://www.niton.com/en/mining/applications">portable x-ray fluorescence</a> (PXRF) analyzers have proven their performance in the field on hundreds of thousands of geological samples. In fact, the analytical performance using the latest handheld and field-portable analyzers in mining is now so good that the key limiting factor to receiving lab-quality results is adequate sample preparation – especially for the XRF analysis of elements lighter than calcium. <img decoding="async" alt="" src="https://www.thermofisher.com/blog/wp-content/uploads/2013/09/sampleprepchartswide.jpg" width="773" height="238" />So how can you ensure you are receiving the most accurate results when you are onsite? By preparing your sample. The analytical performance of XRF analysis on geological materials is significantly improved by collecting representative aliquots and proper preparation of the sample. Unfortunately, material with a particle size range of 100μm and below, which is necessary for high-performance lab-quality XRF analysis, cannot be practically achieved by any manual operation, so you must look to sample preparation equipment. There are two different types of equipment and methods for preparing your samples that I recommend: a direct rock sampler and an electric hammer mill. Both of these methods convert the sample into a fine powder so it can then become a pellet to be more accurately analyzed. I will compare the two methods in the next article, but right now I want to assure you that these very easy extra steps are certainly worth the effort. The above comparison charts illustrate results achieved with and without using the sample preparation tools. It shows that if you use proper sample preparation methods and tools, you will gather improved analysis results. Click here to see additional charts that show improved <a title="Sample Prep Results" href="https://www.thermofisher.com/blog/?attachment_id=1252">analysis results using XRF for both lighter and heavier elements</a>, including: Magnesium (Mg), Nickel (Ni), and Iron (Fe). Download the <a href="http://www.niton.com/docs/document-library/spec-sheet_samplepreptools_mining_final_2012feb14-(2).pdf?sfvrsn=2">mining sample prep tools specification sheet</a> for more specifics.</p> <aside class="mashsb-container mashsb-main "><div class="mashsb_above_buttons">Share this article </div><div class="mashsb-box"><div class="mashsb-buttons"><a class="mashicon-facebook mash-large mashsb-noshadow" href="https://www.facebook.com/sharer.php?u=https%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fmining%2Fimportance-sample-preparation-mining%2F" target="_top" rel="nofollow"><span class="icon"></span><span class="text">Facebook</span></a><a class="mashicon-linkedin mash-large mashsb-noshadow" href="https://www.linkedin.com/shareArticle?trk=The+Importance+of+Sample+Preparation+in+Mining&url=https%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fmining%2Fimportance-sample-preparation-mining%2F" target="_top" rel="nofollow"><span class="icon"></span><span class="text">Linkedin</span></a><a class="mashicon-twitter mash-large mashsb-noshadow" href="https://twitter.com/intent/tweet?text=The%20Importance%20of%20Sample%20Preparation%20in%20Mining&url=https://www.thermofisher.com/blog/mining/?p=1244&via=thermofisher" target="_top" rel="nofollow"><span class="icon"></span><span class="text">Twitter</span></a><a class="mashicon-mail mash-large mashsb-noshadow" href="mailto:?subject=Check%20out%20this%20article%20from%20Accelerating%20Science&body=Check%20out%20this%20article%20I%20just%20read%3Ahttps%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fmining%2Fimportance-sample-preparation-mining%2F" target="_top" rel="nofollow"><span class="icon"></span><span class="text">Mail</span></a><div class="onoffswitch2 mash-large mashsb-noshadow" style="display:none"></div></div> </div> <div style="clear:both"></div><div class="mashsb-toggle-container"></div></aside> <div class="jp-relatedposts"> <div class="related-post related-1"> <a href="https://www.thermofisher.com/blog/mining/pgnaa-improves-process-and-quality-control-in-cement-production/"><img width="310" height="274" src="https://www.thermofisher.com/blog/mining/wp-content/uploads/sites/3/2014/04/crossbeltanalyzer-310x274.jpg" class="attachment-grid size-grid wp-post-image" alt="Cross Belt Analyzer" decoding="async" /></a> <span class="grid-content"> <h4 class="entry-title"><a href="https://www.thermofisher.com/blog/mining/pgnaa-improves-process-and-quality-control-in-cement-production/">PGNAA Improves Process and Quality Control in Cement Production</a></h4> <p>In the world of cement production, precision is key. 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