{"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\/pt\/applications\/determination-of-chromium-in-refined-sulfur-graphite-furnace-atomic-absorption-spectrometry-4","title":{"rendered":"Determina\u00e7\u00e3o do Chromium em Sulfur Refined (Graphite Furnace Atomic Absorption Spectrometry)"},"content":{"rendered":"<p>1. Vista geral do m\u00e9todo<br \/>\nAp\u00f3s o tratamento de digest\u00e3o da amostra, esta \u00e9 atomizada em um forno de grafite e a absorb\u00e2ncia \u00e9 medida a 357,9 nm. Dentro de uma determinada faixa de concentra\u00e7\u00e3o, a absorb\u00e2ncia do cromo \u00e9 proporcional ao seu teor, e a quantifica\u00e7\u00e3o \u00e9 realizada por compara\u00e7\u00e3o com uma s\u00e9rie de padr\u00f5es.<\/p>\n<p>2. \u00c1mbito de aplica\u00e7\u00e3o<br \/>\nEste m\u00e9todo aplica-se ao enxofre utilizado em diversos f\u00f3sforos na fabrica\u00e7\u00e3o de tubos de imagem para televisores e outros tubos de raios cat\u00f3dicos na ind\u00fastria eletr\u00f4nica.<\/p>\n<p>3. Base de Refer\u00eancia<br \/>\nZB G13 002\u20111990, P\u00f3 de Enxofre Refinado<\/p>\n<p>4. Instrumentos e reagentes<\/p>\n<p>4.1.1 Instrumentos de teste<\/p>\n<table>\n<thead>\n<tr>\n<th>N\u00e3o.<\/th>\n<th>Nome<\/th>\n<th>Quantidade<\/th>\n<th>Requisitos t\u00e9cnicos<\/th>\n<th>Acess\u00f3rios<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>Espetrofotometro de Absor\u00e7\u00e3o At\u00f4mica do Furno de Graf\u00edto<\/td>\n<td>1 conjunto<\/td>\n<td>\u2014<\/td>\n<td>L\u00e2mpada de c\u00e1todo oco de cromo<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Sistema de refrigera\u00e7\u00e3o por \u00e1gua circulante<\/td>\n<td>1 conjunto<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Arg\u00f4nio<\/td>\n<td>1 cilindro<\/td>\n<td>Pureza \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\/pt\/wp-json\/wp\/v2\/posts\/5205","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/comments?post=5205"}],"version-history":[{"count":1,"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/posts\/5205\/revisions"}],"predecessor-version":[{"id":5207,"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/posts\/5205\/revisions\/5207"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/media\/5206"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/media?parent=5205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/categories?post=5205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/tags?post=5205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}