{"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\/vi\/applications\/determination-of-chromium-in-refined-sulfur-graphite-furnace-atomic-absorption-spectrometry-4","title":{"rendered":"X\u00e1c \u0111\u1ecbnh Chromium trong l\u01b0u hu\u1ef3nh tinh ch\u1ebf (Graphite Furnace Atomic Absorption Spectrometry)"},"content":{"rendered":"<p>1. T\u1ed5ng quan v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p<br \/>\nSau khi x\u1eed l\u00fd m\u1eabu b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n h\u1ee7y, m\u1eabu \u0111\u01b0\u1ee3c nguy\u00ean t\u1eed h\u00f3a trong l\u00f2 nung than ch\u00ec, v\u00e0 \u0111\u1ed9 h\u1ea5p th\u1ee5 \u0111\u01b0\u1ee3c \u0111o \u1edf b\u01b0\u1edbc s\u00f3ng 357,9 nm. Trong m\u1ed9t ph\u1ea1m vi n\u1ed3ng \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh, \u0111\u1ed9 h\u1ea5p th\u1ee5 c\u1ee7a crom t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi h\u00e0m l\u01b0\u1ee3ng c\u1ee7a n\u00f3, v\u00e0 vi\u1ec7c \u0111\u1ecbnh l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch so s\u00e1nh v\u1edbi d\u00e3y chu\u1ea9n.<\/p>\n<p>2. Ph\u1ea1m vi \u1ee9ng d\u1ee5ng<br \/>\nPh\u01b0\u01a1ng ph\u00e1p n\u00e0y \u00e1p d\u1ee5ng cho l\u01b0u hu\u1ef3nh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t ph\u00e1t quang kh\u00e1c nhau trong s\u1ea3n xu\u1ea5t \u1ed1ng h\u00ecnh \u1ea3nh truy\u1ec1n h\u00ecnh v\u00e0 c\u00e1c \u1ed1ng tia cathode kh\u00e1c trong ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111i\u1ec7n t\u1eed.<\/p>\n<p>3. C\u01a1 s\u1edf tham chi\u1ebfu<br \/>\nZB G13 002\u20111990, B\u1ed9t l\u01b0u hu\u1ef3nh tinh ch\u1ebf<\/p>\n<p>4. D\u1ee5ng c\u1ee5 v\u00e0 h\u00f3a ch\u1ea5t<\/p>\n<p>4.1.1 D\u1ee5ng c\u1ee5 th\u1eed nghi\u1ec7m<\/p>\n<table>\n<thead>\n<tr>\n<th>Kh\u00f4ng.<\/th>\n<th>T\u00ean<\/th>\n<th>S\u1ed1 l\u01b0\u1ee3ng<\/th>\n<th>Y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt<\/th>\n<th>Ph\u1ee5 ki\u1ec7n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>Graphite l\u00f2 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed quang ph\u1ed5<\/td>\n<td>1 b\u1ed9<\/td>\n<td>\u2014<\/td>\n<td>\u0110\u00e8n cat\u1ed1t r\u1ed7ng crom<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>H\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t b\u1eb1ng n\u01b0\u1edbc tu\u1ea7n ho\u00e0n<\/td>\n<td>1 b\u1ed9<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Argon<\/td>\n<td>1 xi lanh<\/td>\n<td>\u0110\u1ed9 tinh khi\u1ebft \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\/vi\/wp-json\/wp\/v2\/posts\/5205","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/comments?post=5205"}],"version-history":[{"count":1,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/5205\/revisions"}],"predecessor-version":[{"id":5207,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/5205\/revisions\/5207"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media\/5206"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media?parent=5205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/categories?post=5205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/tags?post=5205"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}