{"id":4872,"date":"2026-08-13T13:37:23","date_gmt":"2026-08-13T05:37:23","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=4872"},"modified":"2026-08-13T13:37:23","modified_gmt":"2026-08-13T05:37:23","slug":"application-case-of-a500-zeeman-atomic-absorption-spectrophotometer-determination-of-zinc-and-iron-content-in-milk-powder","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/vi\/applications\/application-case-of-a500-zeeman-atomic-absorption-spectrophotometer-determination-of-zinc-and-iron-content-in-milk-powder","title":{"rendered":"\u1ee8ng d\u1ee5ng th\u1ef1c ti\u1ec5n c\u1ee7a m\u00e1y quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed Zeeman A500 \u2014 X\u00e1c \u0111\u1ecbnh h\u00e0m l\u01b0\u1ee3ng k\u1ebdm v\u00e0 s\u1eaft trong s\u1eefa b\u1ed9t."},"content":{"rendered":"<p>S\u1eefa b\u1ed9t, \u0111\u1eb7c bi\u1ec7t l\u00e0 s\u1eefa b\u1ed9t c\u00f4ng th\u1ee9c cho tr\u1ebb s\u01a1 sinh, \u0111\u00f3ng vai tr\u00f2 l\u00e0 ngu\u1ed3n dinh d\u01b0\u1ee1ng thi\u1ebft y\u1ebfu trong giai \u0111o\u1ea1n \u0111\u1ea7u \u0111\u1eddi. \u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a h\u00e0m l\u01b0\u1ee3ng dinh d\u01b0\u1ee1ng v\u00e0 s\u1ef1 an to\u00e0n c\u1ee7a t\u1ef7 l\u1ec7 c\u00e1c th\u00e0nh ph\u1ea7n \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ef1 t\u0103ng tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a tr\u1ebb s\u01a1 sinh c\u0169ng nh\u01b0 s\u1ee9c kh\u1ecfe l\u00e2u d\u00e0i c\u1ee7a ch\u00fang. L\u00e0 c\u00e1c nguy\u00ean t\u1ed1 vi l\u01b0\u1ee3ng thi\u1ebft y\u1ebfu, k\u1ebdm v\u00e0 s\u1eaft \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong s\u1ef1 ph\u00e1t tri\u1ec3n h\u1ec7 mi\u1ec5n d\u1ecbch v\u00e0 ch\u1ee9c n\u0103ng t\u1ea1o m\u00e1u. Do \u0111\u00f3, vi\u1ec7c \u0111\u1ecbnh l\u01b0\u1ee3ng ch\u00ednh x\u00e1c k\u1ebdm v\u00e0 s\u1eaft trong s\u1eefa b\u1ed9t c\u00f3 \u00fd ngh\u0129a r\u1ea5t l\u1edbn \u0111\u1ed1i v\u1edbi vi\u1ec7c ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m v\u00e0 gi\u00e1m s\u00e1t an to\u00e0n th\u1ef1c ph\u1ea9m. Theo Ti\u00eau chu\u1ea9n An to\u00e0n Th\u1ef1c ph\u1ea9m Qu\u1ed1c gia GB 5009.14-2017 (X\u00e1c \u0111\u1ecbnh K\u1ebdm trong Th\u1ef1c ph\u1ea9m) v\u00e0 GB 5009.90-2016 (X\u00e1c \u0111\u1ecbnh S\u1eaft trong Th\u1ef1c ph\u1ea9m), nghi\u00ean c\u1ee9u n\u00e0y s\u1eed d\u1ee5ng m\u00e1y quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed Zeeman A500. T\u1eadn d\u1ee5ng hi\u1ec7u su\u1ea5t hi\u1ec7u ch\u1ec9nh n\u1ec1n v\u01b0\u1ee3t tr\u1ed9i v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh tuy\u1ec7t v\u1eddi c\u1ee7a m\u00e1y, ch\u00fang t\u00f4i ti\u1ebfn h\u00e0nh th\u1ea9m \u0111\u1ecbnh ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 ph\u00e1t hi\u1ec7n k\u1ebdm v\u00e0 s\u1eaft trong s\u1eefa b\u1ed9t.<\/p>\n<ol>\n<li>\u0110i\u1ec1u ki\u1ec7n th\u00ed nghi\u1ec7m<\/li>\n<\/ol>\n<p>D\u1ee5ng c\u1ee5 v\u00e0 thu\u1ed1c th\u1eed<\/p>\n<p>Thi\u1ebft b\u1ecb: M\u00e1y quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed ng\u1ecdn l\u1eeda Zeeman A500, M\u00e1y ph\u00e2n h\u1ee7y b\u1eb1ng vi s\u00f3ng (trang b\u1ecb ph\u1ee5 ki\u1ec7n lo\u1ea1i b\u1ecf axit)<\/p>\n<p>Thu\u1ed1c th\u1eed: Axit nitric<\/p>\n<p>T\u00e0i li\u1ec7u tham kh\u1ea3o \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn:<\/p>\n<p>Dung d\u1ecbch chu\u1ea9n k\u1ebdm \u0111\u01a1n nguy\u00ean t\u1ed1 GBW(E)080130<\/p>\n<p>Dung d\u1ecbch chu\u1ea9n s\u1eaft \u0111\u01a1n nguy\u00ean t\u1ed1 GBW(E)084937<\/p>\n<p>E701628 Ch\u1ea5t chu\u1ea9n tham chi\u1ebfu \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn \u0111\u1ec3 ph\u00e2n t\u00edch \u0111\u1ecbnh l\u01b0\u1ee3ng S\u1eaft, \u0110\u1ed3ng, K\u1ebdm v\u00e0 Mangan trong s\u1eefa b\u1ed9t c\u00f4ng th\u1ee9c cho tr\u1ebb s\u01a1 sinh<\/p>","protected":false},"excerpt":{"rendered":"<p>Milk powder, especially infant formula milk powder, serves as a critical nutritional source in the early life stage. The accuracy of nutrient content and the safety of ingredient ratios directly affect infants\u2019 growth and development as well as their long-term health. As essential trace elements, zinc and iron play vital roles in immune system development [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":4673,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[36,73],"tags":[],"class_list":["post-4872","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\/4872","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=4872"}],"version-history":[{"count":1,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/4872\/revisions"}],"predecessor-version":[{"id":4873,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/4872\/revisions\/4873"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media\/4673"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media?parent=4872"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/categories?post=4872"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/tags?post=4872"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}