{"id":5205,"date":"2026-09-10T16:28:20","date_gmt":"2026-09-10T08:28:20","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=5205"},"modified":"2026-09-10T16:28:20","modified_gmt":"2026-09-10T08:28:20","slug":"determination-of-chromium-in-refined-sulfur-graphite-furnace-atomic-absorption-spectrometry-4","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/fr\/applications\/determination-of-chromium-in-refined-sulfur-graphite-furnace-atomic-absorption-spectrometry-4","title":{"rendered":"D\u00e9termination du chrome dans le soufre raffin\u00e9 (spectrom\u00e9trie d'absorption atomique au four \u00e0 graphite)"},"content":{"rendered":"<p>1. Aper\u00e7u de la m\u00e9thode<br \/>\nApr\u00e8s digestion, l'\u00e9chantillon est atomis\u00e9 dans un four graphite et son absorbance est mesur\u00e9e \u00e0 357,9 nm. Dans une certaine gamme de concentrations, l'absorbance du chrome est proportionnelle \u00e0 sa concentration\u00a0; la quantification est donc r\u00e9alis\u00e9e par comparaison avec une gamme \u00e9talon.<\/p>\n<p>2. Champ d &apos; application<br \/>\nCette m\u00e9thode s'applique au soufre utilis\u00e9 pour divers phosphores dans la fabrication des tubes cathodiques de t\u00e9l\u00e9vision et autres tubes \u00e0 rayons cathodiques de l'industrie \u00e9lectronique.<\/p>\n<p>3. Base de r\u00e9f\u00e9rence<br \/>\nZB G13 002\u20111990, Poudre de soufre raffin\u00e9e<\/p>\n<p>4. Instruments et r\u00e9actifs<\/p>\n<p>4.1.1 Instruments de test<\/p>\n<table>\n<thead>\n<tr>\n<th>- Non, non.<\/th>\n<th>Nom<\/th>\n<th>Quantit\u00e9<\/th>\n<th>Exigences techniques<\/th>\n<th>Accessoires<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>Four \u00e0 graphite Spectrophotom\u00e8tre d'absorption atomique<\/td>\n<td>1 ensemble<\/td>\n<td>\u2014<\/td>\n<td>Lampe \u00e0 cathode creuse au chrome<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Syst\u00e8me de refroidissement \u00e0 eau en circulation<\/td>\n<td>1 ensemble<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Argon<\/td>\n<td>1 cylindre<\/td>\n<td>Puret\u00e9 \u226599,99%<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"<p>1. Method Overview After sample digestion treatment, the sample is atomized in a graphite furnace, and the absorbance is measured at 357.9\u202fnm. Within a certain concentration range, the absorbance of chromium is proportional to its content, and quantification is performed by comparison with the standard series. 2. Scope of Application This method applies to sulfur [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":5206,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[81,36],"tags":[],"class_list":["post-5205","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-petrochemical-and-chemical","category-applications"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/posts\/5205","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/comments?post=5205"}],"version-history":[{"count":1,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/posts\/5205\/revisions"}],"predecessor-version":[{"id":5207,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/posts\/5205\/revisions\/5207"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/media\/5206"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/media?parent=5205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/categories?post=5205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/tags?post=5205"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}