{"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\/vi\/applications\/determination-of-calcium-in-milk-powder-flame-atomic-absorption-spectrometry-3","title":{"rendered":"X\u00e1c \u0111\u1ecbnh canxi trong b\u1ed9t s\u1eefa (quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed l\u1eeda)"},"content":{"rendered":"<p>1 T\u1ed5ng quan ph\u01b0\u01a1ng ph\u00e1p<br \/>\nSau khi m\u1eabu \u0111\u01b0\u1ee3c ph\u00e2n h\u1ee7y, dung d\u1ecbch lanthanum \u0111\u01b0\u1ee3c th\u00eam v\u00e0o l\u00e0m ch\u1ea5t gi\u1ea3i ph\u00f3ng. M\u1eabu \u0111\u01b0\u1ee3c nguy\u00ean t\u1eed h\u00f3a trong ng\u1ecdn l\u1eeda h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed, v\u00e0 \u0111\u1ed9 h\u1ea5p th\u1ee5 \u0111\u01b0\u1ee3c \u0111o \u1edf b\u01b0\u1edbc s\u00f3ng 422,7 nm. Trong m\u1ed9t ph\u1ea1m vi n\u1ed3ng \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh, \u0111\u1ed9 h\u1ea5p th\u1ee5 t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi h\u00e0m l\u01b0\u1ee3ng canxi, v\u00e0 vi\u1ec7c \u0111\u1ecbnh l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch so s\u00e1nh v\u1edbi d\u00e3y chu\u1ea9n.<\/p>\n<p>2. Ph\u1ea1m vi \u00e1p d\u1ee5ng<br \/>\nPh\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh h\u00e0m l\u01b0\u1ee3ng canxi trong s\u1eefa b\u1ed9t.<\/p>\n<p>3. C\u01a1 s\u1edf tham chi\u1ebfu<br \/>\nGB 5009.92\u20112016, Ti\u00eau chu\u1ea9n An to\u00e0n Th\u1ef1c ph\u1ea9m Qu\u1ed1c gia \u2014 X\u00e1c \u0111\u1ecbnh h\u00e0m l\u01b0\u1ee3ng Canxi trong Th\u1ef1c ph\u1ea9m<\/p>\n<p>4. D\u1ee5ng c\u1ee5 v\u00e0 h\u00f3a ch\u1ea5t<\/p>\n<p>4.1 D\u1ee5ng c\u1ee5 v\u00e0 thi\u1ebft b\u1ecb<\/p>\n<p>4.1.1 D\u1ee5ng c\u1ee5 th\u1eed nghi\u1ec7m<\/p>\n<table>\n<thead>\n<tr>\n<th>Kh\u00f4ng.<\/th>\n<th>T\u00ean<\/th>\n<th>S\u1ed1 l\u01b0\u1ee3ng<\/th>\n<th>Y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt<\/th>\n<th>Ph\u1ee5 ki\u1ec7n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>M\u00e1y quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed ng\u1ecdn l\u1eeda<\/td>\n<td>1 b\u1ed9<\/td>\n<td>\u2014<\/td>\n<td>\u0110\u00e8n cat\u1ed1t r\u1ed7ng canxi<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>M\u00e1y n\u00e9n kh\u00ed<\/td>\n<td>1 b\u1ed9<\/td>\n<td>\u00c1p su\u1ea5t kh\u00ed th\u1ea3i \u0111\u1ecbnh m\u1ee9c: 0,3 MPa<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Acetylen<\/td>\n<td>1 xi lanh<\/td>\n<td>\u0110\u1ed9 tinh khi\u1ebft \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\/vi\/wp-json\/wp\/v2\/posts\/5211","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/comments?post=5211"}],"version-history":[{"count":1,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/5211\/revisions"}],"predecessor-version":[{"id":5213,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/5211\/revisions\/5213"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media\/5212"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media?parent=5211"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/categories?post=5211"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/tags?post=5211"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}