{"id":4479,"date":"2026-03-16T10:25:42","date_gmt":"2026-03-16T02:25:42","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=4479"},"modified":"2026-03-16T10:25:42","modified_gmt":"2026-03-16T02:25:42","slug":"determination-method-for-lead-in-surface-water-graphite-furnace-atomic-absorption-spectrometry-2","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/pt\/applications\/environment\/determination-method-for-lead-in-surface-water-graphite-furnace-atomic-absorption-spectrometry-2","title":{"rendered":"M\u00e9todo de determina\u00e7\u00e3o do chumbo em \u00e1guas de superf\u00edcie (espetrometria de absor\u00e7\u00e3o at\u00f3mica em forno de grafite)"},"content":{"rendered":"<ol>\n<li>Princ\u00edpio do m\u00e9todo<\/li>\n<\/ol>\n<p>Ap\u00f3s um pr\u00e9-tratamento adequado, a amostra \u00e9 injectada num atomizador de tubo de grafite. Os i\u00f5es de chumbo s\u00e3o dissociados em vapor at\u00f3mico a altas temperaturas no interior do tubo de grafite. Os \u00e1tomos no estado fundamental do elemento alvo absorvem a linha de resson\u00e2ncia emitida por uma l\u00e2mpada de c\u00e1todo oco de chumbo e a intensidade de absor\u00e7\u00e3o \u00e9 proporcional \u00e0 concentra\u00e7\u00e3o de chumbo dentro de um determinado intervalo, permitindo a an\u00e1lise quantitativa do teor de chumbo.<\/p>\n<ol start=\"2\">\n<li>\u00c1mbito<\/li>\n<\/ol>\n<p>Aplicado \u00e0 determina\u00e7\u00e3o do chumbo na \u00e1gua superficial.<\/p>\n<ol start=\"3\">\n<li>Refer\u00eancias<\/li>\n<\/ol>\n<p>GB\/T 5750.6-2006 M\u00e9todos padr\u00e3o de exame para \u00e1gua de superf\u00edcie - \u00cdndices de metais<\/p>\n<ol start=\"4\">\n<li>Instrumentos de Teste<\/li>\n<\/ol>\n<ul>\n<li>Espectr\u00f3metro de absor\u00e7\u00e3o at\u00f4mica do forno de grafito 1 coloca l\u00e2mpada de cat\u00f3dio vazio de chumbo<\/li>\n<li>Sistema de \u00e1gua circulante de refrigera\u00e7\u00e3o 1 estabeleceu taxa de fluxo de bomba de \u00e1gua: 3,5 L\/min<\/li>\n<li>Gas arg\u00f4nico 1 cilindro Pureza \u2265 99,99%<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Method Principle After appropriate pretreatment, the sample is injected into a graphite tube atomizer. Lead ions are dissociated into atomic vapor at high temperatures within the graphite tube. The ground-state atoms of the target element absorb the resonance line emitted by a lead hollow cathode lamp, and the absorption intensity is proportional to the lead [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[75],"tags":[],"class_list":["post-4479","post","type-post","status-publish","format-standard","hentry","category-environment"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/posts\/4479","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=4479"}],"version-history":[{"count":0,"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/posts\/4479\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/media?parent=4479"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/categories?post=4479"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/tags?post=4479"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}