{"id":5211,"date":"2026-09-10T16:40:05","date_gmt":"2026-09-10T08:40:05","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=5211"},"modified":"2026-09-10T16:40:05","modified_gmt":"2026-09-10T08:40:05","slug":"determination-of-calcium-in-milk-powder-flame-atomic-absorption-spectrometry-3","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/fr\/applications\/determination-of-calcium-in-milk-powder-flame-atomic-absorption-spectrometry-3","title":{"rendered":"D\u00e9termination du calcium dans le lait en poudre (spectrom\u00e9trie d'absorption atomique de flamme)"},"content":{"rendered":"<p>1 Aper\u00e7u de la m\u00e9thode<br \/>\nApr\u00e8s digestion de l'\u00e9chantillon, une solution de lanthane est ajout\u00e9e comme agent de lib\u00e9ration. L'\u00e9chantillon est atomis\u00e9 dans une flamme d'absorption atomique et l'absorbance est mesur\u00e9e \u00e0 422,7 nm. Dans une certaine gamme de concentrations, l'absorbance est proportionnelle \u00e0 la teneur en calcium, et la quantification est effectu\u00e9e par comparaison avec une gamme \u00e9talon.<\/p>\n<p>2. Champ d'application<br \/>\nCette m\u00e9thode est applicable au dosage du calcium dans le lait en poudre.<\/p>\n<p>3 Base de r\u00e9f\u00e9rence<br \/>\nGB 5009.92\u20112016, Norme nationale de s\u00e9curit\u00e9 alimentaire \u2014 D\u00e9termination du calcium dans les aliments<\/p>\n<p>4 Instruments et r\u00e9actifs<\/p>\n<p>4.1 Instruments et \u00e9quipements<\/p>\n<p>4.1.1 Instruments de test<\/p>\n<table>\n<thead>\n<tr>\n<th>- Non, non.<\/th>\n<th>Nom<\/th>\n<th>Quantit\u00e9<\/th>\n<th>Exigences techniques<\/th>\n<th>Accessoires<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>Spectrophotom\u00e8tre d'absorption atomique de flamme<\/td>\n<td>1 ensemble<\/td>\n<td>\u2014<\/td>\n<td>Lampe \u00e0 cathode creuse au calcium<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Compresseur d'air<\/td>\n<td>1 ensemble<\/td>\n<td>Pression d'\u00e9chappement nominale : 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 After the sample is digested, lanthanum solution is added as a releasing agent. The sample is atomized in an atomic\u2011absorption flame, and the absorbance is measured at 422.7\u202fnm. Within a certain concentration range, the absorbance is proportional to the calcium content, and quantification is performed by comparison with the standard series. 2 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":5212,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[36,73],"tags":[],"class_list":["post-5211","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-applications","category-food-and-drugs"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/posts\/5211","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=5211"}],"version-history":[{"count":1,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/posts\/5211\/revisions"}],"predecessor-version":[{"id":5213,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/posts\/5211\/revisions\/5213"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/media\/5212"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/media?parent=5211"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/categories?post=5211"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/tags?post=5211"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}