{"id":4477,"date":"2026-03-16T10:24:39","date_gmt":"2026-03-16T02:24:39","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=4477"},"modified":"2026-03-16T10:24:39","modified_gmt":"2026-03-16T02:24:39","slug":"determination-method-for-ammonia-nitrogen-in-surface-water-salicylate-spectrophotometric-method-2","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/pt\/applications\/environment\/determination-method-for-ammonia-nitrogen-in-surface-water-salicylate-spectrophotometric-method-2","title":{"rendered":"M\u00e9todo de determina\u00e7\u00e3o para nitrog\u00eanio de am\u00f4nia em \u00e1guas superficiais (m\u00e9todo espectrofotom\u00e9trico de salicilato)"},"content":{"rendered":"<p>1. Princ\u00edpio do M\u00e9todo<\/p>\n<p>Em um meio alcalino (pH = 11,7) na presen\u00e7a de nitroferican\u00eddeos de s\u00f3dio, am\u00f4nia e \u00edons de am\u00f4nio na \u00e1gua reagem com \u00edons salicilato e hipoclorito para formar um composto azul.<\/p>\n<p>2. \u00c1mbito de aplica\u00e7\u00e3o<\/p>\n<p>Requisitos do m\u00e9todo anal\u00edtico para nitrog\u00eanio de am\u00f4nia na qualidade da \u00e1gua<\/p>\n<p>3. Refer\u00eancias<\/p>\n<p>HJ 536-2009 Qualidade da \u00e1gua - Determina\u00e7\u00e3o de nitrog\u00eanio de am\u00f4nia<\/p>","protected":false},"excerpt":{"rendered":"<p>1. Method Principle In an alkaline medium (pH = 11.7) in the presence of sodium nitroferricyanide, ammonia and ammonium ions in water react with salicylate and hypochlorite ions to form a blue compound. The absorbance of this compound is measured at 697 nm to quantify the ammonia nitrogen content. 2. Scope of Application Requirements of [&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-4477","post","type-post","status-publish","format-standard","hentry","category-environment"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/posts\/4477","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=4477"}],"version-history":[{"count":0,"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/posts\/4477\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/media?parent=4477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/categories?post=4477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/pt\/wp-json\/wp\/v2\/tags?post=4477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}