{"id":4882,"date":"2026-08-13T13:56:27","date_gmt":"2026-08-13T05:56:27","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=4882"},"modified":"2026-08-13T13:56:27","modified_gmt":"2026-08-13T05:56:27","slug":"determination-of-lead-in-sodium-pyrophosphate-food-additive","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/ar\/applications\/determination-of-lead-in-sodium-pyrophosphate-food-additive","title":{"rendered":"\u062a\u062d\u062f\u064a\u062f \u0646\u0633\u0628\u0629 \u0627\u0644\u0631\u0635\u0627\u0635 \u0641\u064a \u0645\u0627\u062f\u0629 \u0628\u064a\u0631\u0648\u0641\u0648\u0633\u0641\u0627\u062a \u0627\u0644\u0635\u0648\u062f\u064a\u0648\u0645 \u0627\u0644\u0645\u0636\u0627\u0641\u0629 \u0644\u0644\u0623\u063a\u0630\u064a\u0629"},"content":{"rendered":"

1 \u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0637\u0631\u064a\u0642\u0629<\/b><\/strong><\/h2>\n

\u0628\u0639\u062f \u0645\u0639\u0627\u0644\u062c\u0629 \u0627\u0644\u0639\u064a\u0646\u0629\u060c \u062a\u062a\u062d\u062f \u0623\u064a\u0648\u0646\u0627\u062a \u0627\u0644\u0631\u0635\u0627\u0635 \u0645\u0639 \u062b\u0646\u0627\u0626\u064a \u0625\u064a\u062b\u064a\u0644 \u062b\u064a\u0648\u0643\u0627\u0631\u0628\u0627\u0645\u0627\u062a \u0627\u0644\u0635\u0648\u062f\u064a\u0648\u0645 (DDTC) \u0641\u064a \u0638\u0631\u0648\u0641 \u062d\u0645\u0648\u0636\u0629 \u0645\u062d\u062f\u062f\u0629. \u064a\u064f\u0633\u062a\u062e\u0644\u0635 \u0627\u0644\u0645\u0631\u0643\u0628 \u0648\u064a\u064f\u0641\u0635\u0644 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 4-\u0645\u064a\u062b\u064a\u0644-2-\u0628\u0646\u062a\u0627\u0646\u0648\u0646 (MIBK)\u060c \u062b\u0645 \u064a\u064f\u062f\u062e\u0644 \u0625\u0644\u0649 \u0645\u0637\u064a\u0627\u0641 \u0627\u0644\u0627\u0645\u062a\u0635\u0627\u0635 \u0627\u0644\u0630\u0631\u064a \u0644\u0644\u062a\u062d\u0644\u064a\u0644 \u0628\u0627\u0644\u0647\u0628\u0627\u0621 \u0627\u0644\u062c\u0648\u064a. \u064a\u064f\u0642\u0627\u0633 \u0627\u0644\u0627\u0645\u062a\u0635\u0627\u0635 \u0639\u0646\u062f \u0637\u0648\u0644 \u0645\u0648\u062c\u064a 283.3 \u0646\u0627\u0646\u0648\u0645\u062a\u0631. \u0636\u0645\u0646 \u0646\u0637\u0627\u0642 \u062a\u0631\u0643\u064a\u0632 \u0645\u0639\u064a\u0646\u060c \u064a\u062a\u0646\u0627\u0633\u0628 \u0627\u0645\u062a\u0635\u0627\u0635 \u0627\u0644\u0631\u0635\u0627\u0635 \u0637\u0631\u062f\u064a\u064b\u0627 \u0645\u0639 \u0645\u062d\u062a\u0648\u0627\u0647 \u0627\u0644\u0643\u062a\u0644\u064a\u060c \u0648\u064a\u062a\u0645 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0643\u0645\u064a\u0629 \u0628\u0627\u0644\u0645\u0642\u0627\u0631\u0646\u0629 \u0645\u0639 \u0633\u0644\u0633\u0644\u0629 \u0642\u064a\u0627\u0633\u064a\u0629.<\/p>\n

2 \u0646\u0637\u0627\u0642 \u0627\u0644\u062a\u0637\u0628\u064a\u0642<\/b><\/strong><\/h2>\n

\u062a\u0646\u0637\u0628\u0642 \u0647\u0630\u0647 \u0627\u0644\u0637\u0631\u064a\u0642\u0629 \u0639\u0644\u0649 \u062a\u062d\u062f\u064a\u062f \u0646\u0633\u0628\u0629 \u0627\u0644\u0631\u0635\u0627\u0635 \u0641\u064a \u0645\u0627\u062f\u0629 \u0628\u064a\u0631\u0648\u0641\u0648\u0633\u0641\u0627\u062a \u0627\u0644\u0635\u0648\u062f\u064a\u0648\u0645 \u0627\u0644\u0645\u0636\u0627\u0641\u0629 \u0625\u0644\u0649 \u0627\u0644\u0637\u0639\u0627\u0645.<\/p>\n

3 \u0645\u0639\u0627\u064a\u064a\u0631 \u0645\u0631\u062c\u0639\u064a\u0629<\/b><\/strong><\/h2>\n

\u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0627\u0644\u0648\u0637\u0646\u064a \u0644\u0633\u0644\u0627\u0645\u0629 \u0627\u0644\u0623\u063a\u0630\u064a\u0629 GB 25557-2010 - \u0645\u0627\u062f\u0629 \u0628\u064a\u0631\u0648\u0641\u0648\u0633\u0641\u0627\u062a \u0627\u0644\u0635\u0648\u062f\u064a\u0648\u0645 \u0627\u0644\u0645\u0636\u0627\u0641\u0629 \u0644\u0644\u0623\u063a\u0630\u064a\u0629\u060c \u0627\u0644\u0642\u0633\u0645 \u0623.10 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0631\u0635\u0627\u0635<\/p>\n

4. \u0627\u0644\u0623\u062f\u0648\u0627\u062a \u0648\u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0648\u0627\u0644\u0643\u0648\u0627\u0634\u0641<\/b><\/strong><\/h2>\n

4.1 \u0627\u0644\u0623\u062f\u0648\u0627\u062a \u0648\u0627\u0644\u0645\u0639\u062f\u0627\u062a<\/b><\/strong><\/h3>\n

4.1.1 \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062a\u062d\u0644\u064a\u0644\u064a\u0629<\/b><\/strong><\/h4>\n

\u0645\u0644\u0632\u0645\u0629<\/p>\n\n\n\n\n\n\n
-\u0644\u0627<\/b><\/strong><\/td>\n\u0627\u0633\u0645<\/b><\/strong><\/td>\n\u0643\u0645\u064a\u0629<\/b><\/strong><\/td>\n\u0627\u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u062a\u0642\u0646\u064a\u0629<\/b><\/strong><\/td>\n\u0645\u064f\u0643\u064e\u0645\u0651\u0650\u0644\u0627\u062a<\/b><\/strong><\/td>\n<\/tr>\n
1<\/td>\n\u0645\u0642\u064a\u0627\u0633 \u0627\u0644\u0637\u064a\u0641 \u0644\u0644\u0627\u0645\u062a\u0635\u0627\u0635 \u0627\u0644\u0630\u0631\u064a \u0644\u0644\u0647\u0628<\/td>\n1 \u0645\u062c\u0645\u0648\u0639\u0629<\/td>\n\u2014<\/td>\n\u0645\u0635\u0628\u0627\u062d \u0627\u0644\u0643\u0627\u062b\u0648\u062f \u0627\u0644\u0631\u0635\u0627\u0635 \u0627\u0644\u0645\u062c\u0648\u0641<\/td>\n<\/tr>\n
2<\/td>\n\u0636\u0627\u063a\u0637 \u0627\u0644\u0647\u0648\u0627\u0621<\/td>\n\u0648\u062d\u062f\u0629 \u0648\u0627\u062d\u062f\u0629<\/td>\n\u0636\u063a\u0637 \u0627\u0644\u0639\u0627\u062f\u0645 \u0627\u0644\u0645\u0633\u0645\u0649: 0.3 \u0645\u064a\u062c\u0627 \u0628\u0627\u0633<\/td>\n\u2014<\/td>\n<\/tr>\n
3<\/td>\n\u0623\u0633\u0637\u0648\u0627\u0646\u0629 \u0627\u0644\u0623\u0633\u064a\u062a\u064a\u0644\u064a\u0646<\/td>\n\u0623\u0633\u0637\u0648\u0627\u0646\u0629 \u0648\u0627\u062d\u062f\u0629<\/td>\n\u0627\u0644\u0646\u0642\u0627\u0621 \u2265 99.99\u066a<\/td>\n\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"

1 Method Overview After sample pretreatment, lead ions form a complex with sodium diethyldithiocarbamate (DDTC) under a specific pH condition. The complex is extracted and separated using 4-methyl-2-pentanone (MIBK), then introduced into an atomic absorption spectrometer for flame atomization. Absorbance is measured at a wavelength of 283.3 nm. Within a certain concentration range, the absorbance […]<\/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":[36,77],"tags":[],"class_list":["post-4882","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-applications","category-bio-tech-and-life-sciences"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/ar\/wp-json\/wp\/v2\/posts\/4882","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/ar\/wp-json\/wp\/v2\/comments?post=4882"}],"version-history":[{"count":1,"href":"https:\/\/www.pgeneral.com\/ar\/wp-json\/wp\/v2\/posts\/4882\/revisions"}],"predecessor-version":[{"id":4883,"href":"https:\/\/www.pgeneral.com\/ar\/wp-json\/wp\/v2\/posts\/4882\/revisions\/4883"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/ar\/wp-json\/wp\/v2\/media\/4824"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/ar\/wp-json\/wp\/v2\/media?parent=4882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/ar\/wp-json\/wp\/v2\/categories?post=4882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/ar\/wp-json\/wp\/v2\/tags?post=4882"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}