{"id":3905,"date":"2025-09-04T11:10:27","date_gmt":"2025-09-04T03:10:27","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=3905"},"modified":"2025-09-04T11:10:27","modified_gmt":"2025-09-04T03:10:27","slug":"determination-of-lead-in-food-additive-sodium-pyrophosphate-flame-atomic-absorption-spectrometry","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/ja\/applications\/determination-of-lead-in-food-additive-sodium-pyrophosphate-flame-atomic-absorption-spectrometry","title":{"rendered":"\u98df\u54c1\u6dfb\u52a0\u7269\u30d4\u30ed\u30ea\u30f3\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306b\u304a\u3051\u308b\u98df\u98df\u98df\u98df\u54c1\u6dfb\u52a0\u7269\u306e\u98df\u98df\u98df\u54c1\u6dfb\u52a0\u7269\u306e\u98df\u98df\u98df\u98df\u98df\u54c1\u6dfb\u52a0\u7269\u306e\u98df\u98df\u98df\u98df\u98df\u54c1\u6dfb\u52a0\u7269\u306e\u98df\u98df\u98df\u98df\u98df\u98df\u54c1\u6dfb\u52a0\u7269\u306e\u98df\u98df\u98df\u98df\u98df\u54c1\u6dfb\u52a0\u7269\u30ca\u30c8\u30ea"},"content":{"rendered":"

1. \u65b9\u6cd5\u6982\u8981<\/h2>\n
\u30b5\u30f3\u30d7\u30eb\u3092\u51e6\u7406\u3057\u305f\u5f8c,\u30b5\u30b5\u30b5\u30f3\u30d7\u30eb\u30a4\u30aa\u30f3\u306f,\u7279\u5b9a\u306epH\u6761\u4ef6\u306e\u4e0b\u3067,\u30c7\u30a3\u30a8\u30c1\u30eb\u30c7\u30a3\u30c1\u30aa\u30ab\u30eb\u30d0\u30e1\u30f3\u9178\u30ca\u30c8\u30ea\u30a6\u30e0 (DDTC) \u3068\u8907\u5408\u4f53\u3092\u5f62\u6210\u3057\u307e\u3059.\u8907\u5408\u4f53\u3092\u62bd\u51fa\u3057\u30014-\u30e1\u30c1\u30eb-2-\u30da\u30f3\u30bf\u30ce\u30f3\uff08MIBK\uff09\u3067\u5206\u96e2\u3057\u3001\u539f\u5b50\u5438\u53ce\u5206\u5149\u8a08\u306b\u5c0e\u5165\u3059\u308b\u3002\u708e\u306e\u539f\u5b50\u5316\u5f8c\u3001\u5438\u53ce\u7387\u306f283.3nm\u306e\u6ce2\u9577\u3067\u6e2c\u5b9a\u3055\u308c\u307e\u3059\u3002\u7279\u5b9a\u306e\u6d53\u5ea6\u7bc4\u56f2\u5185\u3067,\u4e00\u4e00\u4e00\u5b9a\u306e\u4e00\u4e00\u5b9a\u306e\u6d53\u5ea6\u7bc4\u56f2\u5185\u3067,\u4e00\u4e00\u5b9a\u91cf\u5316\u306f\u6a19\u6e96\u30b7\u30ea\u30fc\u30ba\u3068\u6bd4\u8f03\u3057\u3066\u91cf\u5316\u3055\u308c\u307e\u3059.<\/div>\n
\n

2. \u5668\u5177\u304a\u3088\u3073\u8a66\u85ac<\/h2>\n

2.1 \u6a5f\u5668\u3068\u6a5f\u5668<\/h3>\n

2.1.1 \u30c6\u30b9\u30c8\u6a5f\u5668<\/h4>\n
\n
\n\n\n\n\n\n\n\n
\u30b7\u30ea\u30a2\u30eb\u756a\u53f7<\/th>\n\u540d\u524d<\/th>\n\u91cf<\/th>\n\u6280\u8853\u8981\u4ef6<\/th>\n\u30a2\u30af\u30bb\u30b5\u30ea\u30fc<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\n\u706b\u7130 \u539f\u5b50 \u5438\u53ce \u5206\u5149 \u5149\u8a08<\/td>\n1\u30bb\u30c3\u30c8<\/td>\n–<\/td>\n\u30ea\u30fc\u30c9\u4e2d\u7a7a\u9670\u6975\u30e9\u30f3\u30d7<\/td>\n<\/tr>\n
2<\/td>\n\u7a7a\u6c17\u5727\u7e2e\u6a5f<\/td>\n1\u30bb\u30c3\u30c8<\/td>\n\u8a55\u4fa1\u3055\u308c\u305f\u653e\u96fb\u5727\u529b: 0.3 MPa<\/td>\n–<\/td>\n<\/tr>\n
3<\/td>\n\u30a2\u30bb\u30c1\u30ec\u30f3\u30ac\u30b9<\/td>\n1\u3064\u306e\u30b7\u30ea\u30f3\u30c0\u30fc<\/td>\n\u7d14\u5ea6 \u2265 99.99%<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.1.2 \u30b5\u30f3\u30d7\u30eb\u524d\u51e6\u7406\u88c5\u7f6e<\/h4>\n
\n
\n\n\n\n\n\n\n\n\n\n\n
\u30b7\u30ea\u30a2\u30eb\u756a\u53f7<\/th>\n\u540d\u524d<\/th>\n\u91cf<\/th>\n\u6280\u8853\u8981\u4ef6<\/th>\n\u30a2\u30af\u30bb\u30b5\u30ea\u30fc<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\n\u96fb\u5b50\u30d0\u30e9\u30f3\u30b9<\/td>\n1\u30bb\u30c3\u30c8<\/td>\n\u611f\u5ea6: 0.1 mg<\/td>\n–<\/td>\n<\/tr>\n
2<\/td>\n\u30d3\u30fc\u30ab\u30fc<\/td>\n\u3044\u304f\u3064\u304b\u306e<\/td>\n\u5bb9\u91cf: 150 mL<\/td>\n–<\/td>\n<\/tr>\n
3<\/td>\n\u8abf\u7bc0\u53ef\u80fd\u306a\u30db\u30c3\u30c8\u30d7\u30ec\u30fc\u30c8<\/td>\n1\u30bb\u30c3\u30c8<\/td>\n\u6e29\u5ea6\u7bc4\u56f2: \u5ba4\u6e29\u301c300\u2103<\/td>\n–<\/td>\n<\/tr>\n
4<\/td>\n\u5206\u96e2\u30d5\u30a1\u30cd\u30eb<\/td>\n\u3044\u304f\u3064\u304b\u306e<\/td>\n\u5bb9\u91cf: 250 mL<\/td>\n–<\/td>\n<\/tr>\n
5<\/td>\n\u30de\u30a4\u30af\u30ed\u30d4\u30da\u30c3\u30c8<\/td>\n\u54041\u679a<\/td>\n\u7bc4\u56f2\uff1a100\u03bcL\u301c1000\u03bcL\u30011000\u03bcL\u301c5000\u03bcL<\/td>\n–<\/td>\n<\/tr>\n
6<\/td>\n\u8272\u8a08\u30c1\u30e5\u30fc\u30d6<\/td>\n\u3044\u304f\u3064\u304b\u306e<\/td>\n\u5bb9\u91cf: 10 mL<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.2 \u8a66\u85ac<\/h3>\n

2.2.1 \u539f\u8a66\u85ac<\/h4>\n
\n
\n\n\n\n\n\n\n\n\n\n\n\n
\u30b7\u30ea\u30a2\u30eb\u756a\u53f7<\/th>\n\u540d\u524d<\/th>\n\u6280\u8853\u8981\u4ef6<\/th>\n\u5099\u8003<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\n4-\u30e1\u30c1\u30eb-2-\u30da\u30f3\u30bf\u30ce\u30f3\uff08MIBK\uff09<\/td>\n\u5206\u6790\u8a66\u85ac\uff08AR\uff09<\/td>\n–<\/td>\n<\/tr>\n
2<\/td>\n\u30a2\u30f3\u30e2\u30cb\u30a2 \u6c34<\/td>\n\u5206\u6790\u8a66\u85ac\uff08AR\uff09<\/td>\n–<\/td>\n<\/tr>\n
3<\/td>\n\u786b\u9178\u30a2\u30f3\u30e2\u30cb\u30a6\u30e0<\/td>\n\u4fdd\u8a3c\u3055\u308c\u305f\u8a66\u85ac\uff08GR\uff09<\/td>\n–<\/td>\n<\/tr>\n
4<\/td>\n\u30b7\u30c8\u30ec\u30fc\u30c8\u30a2\u30f3\u30e2\u30cb\u30a6\u30e0<\/td>\n\u5206\u6790\u8a66\u85ac\uff08AR\uff09<\/td>\n–<\/td>\n<\/tr>\n
5<\/td>\n\u30c7\u30a3\u30a8\u30c1\u30eb\u30c7\u30a3\u30c1\u30aa\u30ab\u30fc\u30d0\u30e1\u30fc\u30c8\u30ca\u30c8\u30ea\u30a6\u30e0\uff08DDTC\uff09<\/td>\n\u4fdd\u8a3c\u3055\u308c\u305f\u8a66\u85ac\uff08GR\uff09<\/td>\n–<\/td>\n<\/tr>\n
6<\/td>\n\u30d6\u30ed\u30e2\u30c1\u30e2\u30fc\u30eb \u30d6\u30eb\u30fc<\/td>\n\u5206\u6790\u8a66\u85ac\uff08AR\uff09<\/td>\n–<\/td>\n<\/tr>\n
7<\/td>\n\u785d\u9178<\/td>\nMOS\u7b49\u7d1a<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.2.2 \u6e96\u5099\u3055\u308c\u305f\u8a66\u85ac<\/h4>\n
\n
\n\n\n\n\n\n\n\n\n\n\n
\u30b7\u30ea\u30a2\u30eb\u756a\u53f7<\/th>\n\u540d\u524d<\/th>\n\u6e96\u5099\u65b9\u6cd5<\/th>\n\u5099\u8003<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\n\u30a2\u30f3\u30e2\u30cb\u30a2\u6c34\u6eb6\u6db2 (1 1)<\/td>\n50 mL\u306e\u30a2\u30f3\u30e2\u30cb\u30a2\u6c34\u3092\u6e2c\u5b9a\u3057\u300150 mL\u306e\u6c34\u306b\u52a0\u3048\u3001\u3088\u304f\u6df7\u5408\u3057\u307e\u3059\u3002<\/td>\n–<\/td>\n<\/tr>\n
2<\/td>\n\u786b\u9178\u30a2\u30f3\u30e2\u30cb\u30a6\u30e0\u6eb6\u6db2\uff08300 g\/L\uff09<\/td>\n\u786b\u9178\u30a2\u30f3\u30e2\u30cb\u30a6\u30e030g\u3092\u91cd\u91cf\u3057,\u6c34\u306b\u6eb6\u89e3\u3057,\u6c34\u3067100mL\u307e\u3067\u786b\u9178\u786b\u9178\u30a2\u30f3\u30e2\u30cb\u30a6\u30e0\u3092\u786b\u9178\u6eb6\u89e3\u3057\u307e\u3059.<\/td>\n–<\/td>\n<\/tr>\n
3<\/td>\n\u30b7\u30c8\u30ec\u30fc\u30c8\u30a2\u30f3\u30e2\u30cb\u30a6\u30e0\u6eb6\u6db2\uff08250 g\/L\uff09<\/td>\n\u30b7\u30c8\u30ec\u30fc\u30c8\u30a2\u30f3\u30e2\u30cb\u30a6\u30e025g\u3092\u91cd\u91cf\u3057,\u6c34\u306b\u6eb6\u89e3\u3057,\u6c34\u3067100mL\u307e\u3067\u6c34\u6c34\u6eb6\u89e3\u3057\u307e\u3059.<\/td>\n–<\/td>\n<\/tr>\n
4<\/td>\n\u30c7\u30a3\u30a8\u30c1\u30eb\u30c7\u30a3\u30c1\u30aa\u30ab\u30fc\u30d0\u30e1\u30fc\u30c8\u30ca\u30c8\u30ea\u30a6\u30e0\uff08DDTC\uff09\u6eb6\u6db2\uff0850 g\/L\uff09<\/td>\n5 g\u306e\u30c7\u30a3\u30a8\u30c1\u30eb\u30c7\u30a3\u30c1\u30aa\u30ab\u30eb\u30d0\u30e1\u30fc\u30c8\u30ca\u30c8\u30ea\u30a6\u30e0\u3092\u91cd\u91cf\u3057,\u6c34\u306b\u6eb6\u89e3\u3057,\u6c34\u3067100 mL\u307e\u3067\u6c34\u6c34\u6eb6\u89e3\u3057\u307e\u3059.<\/td>\n–<\/td>\n<\/tr>\n
5<\/td>\n\u30d6\u30ed\u30e2\u30c1\u30e2\u30fc\u30eb\u30d6\u30eb\u30fc\u30a4\u30f3\u30c7\u30a3\u30b1\u30fc\u30bf\u30fc\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3 (1 g\/L)<\/td>\n\u30d6\u30ed\u30e2\u30c1\u30e2\u30fc\u30eb\u30d6\u30eb\u30fc\u306e0.1g\u3092\u91cd\u307f,\u6c34\u306b\u6eb6\u3051,\u6c34\u3067100mL\u307e\u3067\u6c34\u6c34\u6c34\u3067\u30d6\u30d6\u30d6\u30ed\u30e2\u30c1\u30e2\u30fc\u30eb\u30d6\u30eb\u30fc\u3092\u30d6\u30d6\u30d6\u30ed\u30e2\u30c1\u30e2\u30fc\u30eb\u30d6\u30eb\u30fc\u30920.1g\u3092\u91cf\u3057,\u6c34\u3067\u6eb6\u89e3\u3057,\u6c34\u3067100mL\u307e\u3067\u30d6\u30d6\u30d6<\/td>\n–<\/td>\n<\/tr>\n
6<\/td>\n\u785d\u9178\u6eb6\u6db2\uff085+95\uff09<\/td>\n\u785d\u917850 mL\u3092\u8a08\u91cf\u3057\u3001\u6c34950 mL\u306b\u52a0\u3048\u3066\u3088\u304f\u6df7\u305c\u307e\u3059\u3002<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.3 \u53c2\u7167\u57fa\u6e96<\/h3>\n

2.3.1 \u30b9\u30c8\u30c3\u30af\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3<\/h4>\n
\n
\n\n\n\n\n\n
\u30b7\u30ea\u30a2\u30eb\u756a\u53f7<\/th>\n\u3044\u3084<\/th>\n\u540d\u524d<\/th>\n\u6280\u8853\u8981\u4ef6<\/th>\n\u5099\u8003<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nGSB G 62071-90<\/td>\n\u30ea\u30fc\u30c9\u6a19\u6e96\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3<\/td>\n\u6d53\u5ea6: 1000 \u03bcg\/mL<\/td>\n\u4e2d\u592e\u9244\u92fc\u7814\u7a76\u6240,\u56fd\u7acb\u9244\u92fc\u6750\u6599\u8a66\u9a13\u30bb\u30f3\u30bf\u30fc<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

3. \u7d50\u679c\u8a08\u7b97<\/h2>\n
\u30ea\u30fc\u30c9\u542b\u6709\u91cf\u306f\u8cea\u91cf\u5206\u7387\u3067\u8868\u3055\u308c\u307e\u3059\u00a0W<\/span>\u00a0\u94c5\uff08Pb\uff09\u306e\u5358\u4f4d\uff08mg\/kg\uff09\u306f\u3001\u6b21\u306e\u5f0f\u3067\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002<\/div>\n
\"\"<\/div>\n
\u3069\u3053\uff1a<\/div>\n
    \n
  • m1<\/span>=\u4f5c\u696d\u66f2\u7dda\u304b\u3089\u5f97\u3089\u308c\u305f\u8a66\u9a13\u6eb6\u6db2\u306e\u4f5c\u4f5c\u696d\u66f2\u7dda\u306e\u4f5c\u4f5c\u5358\u4f4d\uff1a\u30df\u30ea\u30b0\u30e9\u30e0\uff08mg\uff09<\/li>\n
  • m0<\/span>\u00a0=\u4f5c\u696d\u66f2\u7dda\u304b\u3089\u5f97\u3089\u308c\u305f\u7a7a\u767d\u8a66\u9a13\u6eb6\u6db2\u306e\u4f5c\u4f5c\u4f5c\u4f5c\u4f5c\u696d\u66f2\u7dda\u304b\u3089\u5f97\u3089\u308c\u305f\u4f5c\u4f5c\u696d\u66f2\u7dda\u304b\u3089\u5f97\u3089\u308c\u305f\u4f5c\u4f5c\u4f5c\u696d\u66f2\u7dda\u304b\u3089\u5f97\u3089\u308c\u305f\u4f5c\u4f5c\u4f5c\u696d\u66f2\u7dda\u304b\u3089\u5f97\u3089\u308c\u305f\u7a7a\u767d\u8a66\u9a13\u6eb6\u6db2\u306e\u4f5c\u696d\u5358\u4f4d\u306e<\/li>\n
  • m<\/span>\u00a0\u30b5\u30f3\u30d7\u30eb\u306e\u8cea\u91cf\u3001\u5358\u4f4d\uff1a\u30b0\u30e9\u30e0\uff08g\uff09\u3002<\/li>\n<\/ul>\n

     <\/p>\n

    \u5e73\u884c\u6c7a\u5b9a\u7d50\u679c\u306e\u7b97\u8853\u5e73\u5747\u5024\u306f\u6700\u7d42\u6c7a\u5b9a\u7d50\u679c\u3068\u3057\u3066\u53d6\u3089\u308c\u308b\u30022\u3064\u306e\u4e26\u884c\u6c7a\u5b9a\u7d50\u679c\u306e\u7d76\u5bfe\u5dee\u306f1mg\/kg\u3092\u8d85\u3048\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

    1. Method Overview After the sample is treated, lead ions form a complex with sodium diethyldithiocarbamate (DDTC) under a certain pH condition. The complex is extracted and separated with 4-methyl-2-pentanone (MIBK), then introduced into an atomic absorption spectrometer. After flame atomization, the absorbance is measured at a wavelength of 283.3 nm. Within a certain concentration range, the absorbance value of lead is proportional to its content, and quantification is performed by comparison with a standard series. 2. Instruments and Reagents 2.1 Instruments and Equipment 2.1.1 Testing Instruments Serial No. Name Quantity Technical Requirements Accessories 1 Flame Atomic Absorption Spectrophotometer 1 set – Lead Hollow Cathode Lamp 2 Air Compressor 1 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[36,73],"tags":[],"class_list":["post-3905","post","type-post","status-publish","format-standard","hentry","category-applications","category-food-and-drugs"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/ja\/wp-json\/wp\/v2\/posts\/3905","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/ja\/wp-json\/wp\/v2\/comments?post=3905"}],"version-history":[{"count":0,"href":"https:\/\/www.pgeneral.com\/ja\/wp-json\/wp\/v2\/posts\/3905\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/ja\/wp-json\/wp\/v2\/media?parent=3905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/ja\/wp-json\/wp\/v2\/categories?post=3905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/ja\/wp-json\/wp\/v2\/tags?post=3905"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}