{"id":5199,"date":"2026-09-10T16:17:42","date_gmt":"2026-09-10T08:17:42","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=5199"},"modified":"2026-09-10T16:17:42","modified_gmt":"2026-09-10T08:17:42","slug":"determination-of-sodium-oxide-in-alumina-powder-flame-atomic-absorption-spectrometry","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/fr\/applications\/determination-of-sodium-oxide-in-alumina-powder-flame-atomic-absorption-spectrometry","title":{"rendered":"Dosage de l'oxyde de sodium dans la poudre d'alumine (spectrom\u00e9trie d'absorption atomique de flamme)"},"content":{"rendered":"<h2>1 Aper\u00e7u de la m\u00e9thode<\/h2>\n<p>L'\u00e9chantillon est chauff\u00e9 et dissous dans un b\u00e9cher en quartz contenant un m\u00e9lange d'acide sulfurique et d'acide phosphorique. L'absorbance de l'oxyde de sodium est mesur\u00e9e \u00e0 589,0 nm \u00e0 l'aide d'un spectrophotom\u00e8tre d'absorption atomique, en utilisant une flamme air-ac\u00e9tyl\u00e8ne. Dans une certaine gamme de concentrations, l'absorbance du sodium est proportionnelle \u00e0 sa concentration, et la quantification est r\u00e9alis\u00e9e par comparaison avec une gamme \u00e9talon.<\/p>\n<h2>2. Champ d'application<\/h2>\n<p>Cette m\u00e9thode est applicable \u00e0 la d\u00e9termination de la teneur en oxyde de sodium dans la poudre d'alumine.<\/p>\n<h2>3 Base de r\u00e9f\u00e9rence<\/h2>\n<p>GB\/T 6609.5-2004, M\u00e9thodes d'analyse chimique et d'essai des propri\u00e9t\u00e9s physiques de l'alumine \u2014 D\u00e9termination de la teneur en oxyde de sodium, M\u00e9thode 2<\/p>\n<h2>4 Instruments et r\u00e9actifs<\/h2>\n<h3><strong><b>4.1 Instruments et \u00e9quipements<\/b><\/strong><\/h3>\n<h4><strong><b>4.1.1 Instruments de test<\/b><\/strong><\/h4>\n<table>\n<tbody>\n<tr>\n<td><strong><b>- Non, non.<\/b><\/strong><\/td>\n<td><strong><b>Nom<\/b><\/strong><\/td>\n<td><strong><b>Quantit\u00e9<\/b><\/strong><\/td>\n<td><strong><b>Exigences techniques<\/b><\/strong><\/td>\n<td><strong><b>Accessoires<\/b><\/strong><\/td>\n<\/tr>\n<tr>\n<td>1<\/td>\n<td>Spectrophotom\u00e8tre d'absorption atomique (TAS 990)<\/td>\n<td>1 ensemble<\/td>\n<td>\u2014<\/td>\n<td>Lampe \u00e0 cathode creuse au sodium<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Compresseur d'air<\/td>\n<td>1 ensemble<\/td>\n<td>Pression nominale d'\u00e9chappement: 0,3 MPa<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Acetyl\u00e8ne<\/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 The sample is heated and dissolved in a quartz beaker with mixed sulfuric\u001ephosphoric acid. Using an air\u001eacetylene flame, the absorbance of sodium oxide is measured at 589.0 nm on an atomic absorption spectrophotometer. Within a certain concentration range, the absorbance of sodium is proportional to its content, and quantification is carried out [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":4824,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[81,36],"tags":[],"class_list":["post-5199","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\/5199","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=5199"}],"version-history":[{"count":1,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/posts\/5199\/revisions"}],"predecessor-version":[{"id":5200,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/posts\/5199\/revisions\/5200"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/media\/4824"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/media?parent=5199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/categories?post=5199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/tags?post=5199"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}