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bc=document.querySelector(".breadcrumb_container");if(isOverflown(bc)){bc.parentNode.classList.add("mobile-bc-overflow");bc.parentNode.classList.remove("mobile-no-bc-overflow");}else{bc.parentNode.classList.add("mobile-no-bc-overflow");bc.parentNode.classList.remove("mobile-bc-overflow");}bc.parentNode.classList.add("showMobileBreadcrumbs");}});</script> <div id="main_layer_max"><div id="frame_layer"><div class="tag top"><span class="tag-before"></span><span class="tag-type" data-tag-id="whitePapers">Livre Blanc</span><span class="tag-after"></span></div><h1 id="title" class="standardAdjustable_title"> Lumière diffuse et vérification des performances </h1><div class="tag bottom"><span class="tag-before"></span><span class="tag-type">Livre Blanc</span><span class="tag-after"></span></div><h2>Progrès dans la spectroscopie UV/VIS</h2><div id="content"><link rel="stylesheet" href="/etc/designs/mt/widgets/misc/standardadjustable.min-v47.css" type="text/css"><script src="/etc/designs/mt/widgets/misc/standardadjustable.min-v47.js"></script> <div class="standard-adjustable-content "><div class="header-section width_60_40"><div class="right-par"><div class="rightheaderpar parsys"><div class="smallimage section"><link rel="stylesheet" href="/etc/designs/mt/widgets/misc/smallimage.min-v47.css" type="text/css"><div id="sm_img_aW1hZ2VfdXZ2aXMtc3RyYXktbGlnaHQtcGVyZm9ybWFuY2UtdmVyaWZpY2F0aW9uXzIzMA"><div class="imageDiv"><div class="imageDiv"><table class="imageDiv" style=""><tbody class="imageDiv"><tr class="imageDiv"><td class="imageDiv"><picture><source srcset="/dam/Analytical/uv-vis/uvvis-library/uvvis-stray-light-performance-verification_230.jpg/_jcr_content/renditions/cq5dam.web.121.121.webp" media="(min-width: 0px) and (max-width: 320px)" type="image/webp"><source srcset="/dam/Analytical/uv-vis/uvvis-library/uvvis-stray-light-performance-verification_230.jpg/_jcr_content/renditions/cq5dam.web.121.420.jpeg" media="(min-width: 0px) and (max-width: 320px)" type="image/jpeg"><source srcset="/dam/Analytical/uv-vis/uvvis-library/uvvis-stray-light-performance-verification_230.jpg/_jcr_content/renditions/original.webp" media="(min-width: 321px) and (max-width: 480px)" type="image/webp"><source srcset="/dam/Analytical/uv-vis/uvvis-library/uvvis-stray-light-performance-verification_230.jpg/_jcr_content/renditions/original.webp" media="(min-width: 481px) and (max-width: 640px)" type="image/webp"><source srcset="/dam/Analytical/uv-vis/uvvis-library/uvvis-stray-light-performance-verification_230.jpg/_jcr_content/renditions/original.webp" media="(min-width: 641px) and (max-width: 800px)" type="image/webp"><source srcset="/dam/Analytical/uv-vis/uvvis-library/uvvis-stray-light-performance-verification_230.jpg/_jcr_content/renditions/original.webp" media="(min-width: 801px)" type="image/webp"><img loading="lazy" loading="lazy" src="/dam/Analytical/uv-vis/uvvis-library/uvvis-stray-light-performance-verification_230.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg"></picture></td></tr><tr class="imageDiv"><td class="imageDiv"><div class="description "></div></td></tr></tbody></table></div></div></div><script type="text/javascript">$(window).load(function(){$("#sm_img_aW1hZ2VfdXZ2aXMtc3RyYXktbGlnaHQtcGVyZm9ybWFuY2UtdmVyaWZpY2F0aW9uXzIzMA").imagesLoaded().always(function(instance){if(instance.images.length>0){var targetImage=$(instance.images[0].img);if(targetImage.width()>$(window).width()){targetImage.css("width","100%");}}});});</script> </div></div></div><div class="left-par"><div class="leftheaderpar parsys"><div class="text parbase section"><p>La lumière diffuse est l'un des principaux facteurs pouvant influer sur l'exactitude et la précision photométriques. La procédure de test de la lumière diffuse présente actuellement un grand intérêt et est largement discutée, car la Pharmacopée américaine a publié un nouveau chapitre sur la spectroscopie UV/VIS et a adapté les tests existants. </p><p>Les performances de l'instrument constituent le facteur principal qui influe sur l'exactitude et la répétabilité des mesures. Pour les mesures UV/VIS essentielles, en particulier dans le contrôle de la qualité clinique, pharmaceutique et industrielle, il est crucial que l'instrument fonctionne conformément aux spécifications. Dans les laboratoires travaillant conformément aux réglementations des pharmacopées (p. ex. la Pharmacopée américaine ou la Pharmacopée Européenne), il est important de surveiller régulièrement les performances de l'instrument et de les documenter. </p><p> Ce livre blanc explique l'origine et la mesure exacte de la lumière diffuse. Celui-ci compare les méthodes de mesure de la lumière diffuse selon les versions actuelle et précédente de l'USP, en mettant en avant les avantages des nouveaux tests. En outre, la mesure automatique des tests de vérification des performances est examinée en plus de la lumière diffuse. </p></div></div></div></div><div class="content-section clear"><div class="mainpar parsys"><div class="feedbackb section"><div class="fbB_formView fb_standard_view_mainpar_feedbackb"><div id="fbB_introBtnText_table_mainpar_feedbackb"><form method="get" action="/ch/fr/home/library/white-papers/lab-analytical-instruments/stray-light-and-performance-verification.fb.mainpar.feedbackb.html" style="display:inline-block;"><button class="fb-button-p5a btn-action btn-primary btn-large" data-aa-catId="30" aria-label="Demande d'information"><span> Demande d'information </span></button></form></div></div></div><div class="text parbase section"><h3>Sommaire :</h3><ol><li><b>Les performances optiques d'un <a href="/ch/fr/home/products/Laboratory_Analytics_Browse/uv-vis-spectrometers.html" target="_blank">spectrophotomètre UV/VIS</a></b></li><li><b>Évaluation de la qualité des mesures par des tests de vérification des performances</b></li><li><b>Qu'est-ce que la lumière diffuse ?</b></li><li><b>Comment la lumière diffuse est-elle déterminée ?</b></li><li><b>Méthode par longueur d'onde spécifique (SWM)</b></li><li><b>Méthode par ratio de filtre en solution (SFRM)</b></li><li><b>Évaluation des méthodes SWM et SFRM</b></li><li><b>Corrélation entre les valeurs SWM et SFRM</b></li><li><b>Matériaux de test de la lumière diffuse sur différentes plages de la longueur d'onde</b></li><li><b>Détermination automatique des paramètres de performances optiques, y compris la lumière diffuse</b></li></ol></div><div class="matchingblockpull section"><link rel="stylesheet" href="/etc/designs/mt/widgets/misc/tabnavigation.min-v47.css" type="text/css"><div id="mb_mainparmatchingblockpull_pf" class="matching_block_wrapper matching_box mb_gridLayout" data-swiftype-index="false"><input type="hidden" name="mbTabItemsCount" value="1"/><div class="tab_navigation_mb title">Produits 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