{"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\/ko\/applications\/determination-of-lead-in-sodium-pyrophosphate-food-additive","title":{"rendered":"\ud53c\ub85c\uc778\uc0b0\ub098\ud2b8\ub968 \uc2dd\ud488\ucca8\uac00\uc81c \uc911 \ub0a9 \ud568\ub7c9 \uce21\uc815"},"content":{"rendered":"

1 \ubc29\ubc95 \uac1c\uc694<\/b><\/strong><\/h2>\n

\uc2dc\ub8cc \uc804\ucc98\ub9ac \ud6c4, \ub0a9 \uc774\uc628\uc740 \ud2b9\uc815 pH \uc870\uac74\uc5d0\uc11c \ub514\uc5d0\ud2f8\ub514\ud2f0\uc624\uce74\ub974\ubc14\uba54\uc774\ud2b8\ub098\ud2b8\ub968(DDTC)\uacfc \ucc29\ubb3c\uc744 \ud615\uc131\ud569\ub2c8\ub2e4. \uc774 \ucc29\ubb3c\uc740 4-\uba54\ud2f8-2-\ud39c\ud0c0\ub17c(MIBK)\uc744 \uc0ac\uc6a9\ud558\uc5ec \ucd94\ucd9c \ubc0f \ubd84\ub9ac\ud55c \ud6c4, \ubd88\uaf43 \uc6d0\uc790\ud654 \uc6d0\uc790 \ud761\uc218 \ubd84\uad11\uae30\uc5d0 \ub3c4\uc785\ud569\ub2c8\ub2e4. \ud761\uad11\ub3c4\ub294 283.3 nm \ud30c\uc7a5\uc5d0\uc11c \uce21\uc815\ud569\ub2c8\ub2e4. \ud2b9\uc815 \ub18d\ub3c4 \ubc94\uc704 \ub0b4\uc5d0\uc11c \ub0a9\uc758 \ud761\uad11\ub3c4\ub294 \uc9c8\ub7c9 \ud568\ub7c9\uc5d0 \ube44\ub840\ud558\ubbc0\ub85c, \ud45c\uc900\ubb3c\uc9c8\uacfc\uc758 \ube44\uad50\ub97c \ud1b5\ud574 \uc815\ub7c9 \ubd84\uc11d\uc744 \uc218\ud589\ud569\ub2c8\ub2e4.<\/p>\n

2. \uc801\uc6a9 \ubc94\uc704<\/b><\/strong><\/h2>\n

\uc774 \ubc29\ubc95\uc740 \ud53c\ub85c\uc778\uc0b0\ub098\ud2b8\ub968 \uc2dd\ud488\ucca8\uac00\uc81c \uc911 \ub0a9 \ud568\ub7c9 \uce21\uc815\uc5d0 \uc801\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n

3 \ucc38\uc870 \ud45c\uc900<\/b><\/strong><\/h2>\n

GB 25557-2010 \uad6d\uac00 \uc2dd\ud488 \uc548\uc804 \uae30\uc900 \u2013 \uc2dd\ud488 \ucca8\uac00\ubb3c \ud53c\ub85c\uc778\uc0b0\ub098\ud2b8\ub968, A.10\ud56d \ub0a9 \ud568\ub7c9 \uce21\uc815<\/p>\n

4. \uae30\uae30, \uc7a5\ube44 \ubc0f \uc2dc\uc57d<\/b><\/strong><\/h2>\n

4.1 \uae30\uae30 \ubc0f \uc7a5\ube44<\/b><\/strong><\/h3>\n

4.1.1 \ubd84\uc11d \uae30\uae30<\/b><\/strong><\/h4>\n

\uc2dc\ud2b8<\/p>\n\n\n\n\n\n\n
\uc544\ub2c8\uc57c<\/b><\/strong><\/td>\n\uc774\ub984<\/b><\/strong><\/td>\n\uc218\ub7c9<\/b><\/strong><\/td>\n\uae30\uc220\uc801 \uc694\uad6c \uc0ac\ud56d<\/b><\/strong><\/td>\n\ubd80\uc18d\ud488<\/b><\/strong><\/td>\n<\/tr>\n
1<\/td>\n\ubd88\uaf43 \uc6d0\uc790 \ud761\uc218 \ubd84\uad11\uad11\uacc4\ub294<\/td>\n1 \uc138\ud2b8<\/td>\n\u2014<\/td>\n\ub0a9 \ube48 \u9634\uadf9 \ub7a8\ud504<\/td>\n<\/tr>\n
2<\/td>\n\uacf5\uae30 \uc555\ucd95\uae30<\/td>\n1 \ub2e8\uc704<\/td>\n\uc815\uaca9 \ubc30\uae30 \uc555\ub825: 0.3 MPa<\/td>\n\u2014<\/td>\n<\/tr>\n
3<\/td>\n\uc544\uc138\ud2f8\ub80c \uc2e4\ub9b0\ub354<\/td>\n1 \uc2e4\ub9b0\ub354<\/td>\n\uc21c\uc218\uc131 \u2265 99.99%<\/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\/ko\/wp-json\/wp\/v2\/posts\/4882","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/comments?post=4882"}],"version-history":[{"count":1,"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/posts\/4882\/revisions"}],"predecessor-version":[{"id":4883,"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/posts\/4882\/revisions\/4883"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/media\/4824"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/media?parent=4882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/categories?post=4882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/tags?post=4882"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}