{"id":3902,"date":"2025-09-04T11:03:47","date_gmt":"2025-09-04T03:03:47","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=3902"},"modified":"2025-09-04T11:03:47","modified_gmt":"2025-09-04T03:03:47","slug":"determination-of-copper-in-graphite-powder-flame-atomic-absorption-spectrometry-2","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/vi\/applications\/determination-of-copper-in-graphite-powder-flame-atomic-absorption-spectrometry-2","title":{"rendered":"X\u00e1c \u0111\u1ecbnh \u0111\u1ed3ng trong b\u1ed9t graphite (quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed l\u1eeda)"},"content":{"rendered":"

1. T\u1ed5ng quan v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p<\/h2>\n
Sau khi m\u1eabu \u0111\u01b0\u1ee3c ti\u00eau h\u00f3a v\u1edbi aqua regia, vi\u1ec7c x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng ng\u1ecdn l\u1eeda kh\u00f4ng kh\u00ed-acetylene \u1edf b\u01b0\u1edbc s\u00f3ng d\u1ee5ng c\u1ee5 324,7 nm.<\/div>\n
\n

2. D\u1ee5ng c\u1ee5 v\u00e0 thu\u1ed1c th\u1eed<\/h2>\n

2.1 D\u1ee5ng c\u1ee5 v\u00e0 thi\u1ebft b\u1ecb<\/h3>\n

2.1.1 D\u1ee5ng c\u1ee5 ki\u1ec3m tra<\/h4>\n
\n
\n\n\n\n\n\n\n\n
S\u1ed1 Serial<\/th>\nT\u00ean<\/th>\nS\u1ed1 l\u01b0\u1ee3ng<\/th>\nY\u00eau c\u1ea7u k\u1ef9 thu\u1eadt<\/th>\nPh\u1ee5 ki\u1ec7n<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nM\u00e1y quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed ng\u1ecdn l\u1eeda<\/td>\n1 b\u1ed9<\/td>\n–<\/td>\n\u0110\u00e8n cathode \u0111\u1ed3ng r\u1ed7ng<\/td>\n<\/tr>\n
2<\/td>\nKh\u00ed Acetylene<\/td>\n1 xi lanh<\/td>\n\u0110\u1ed9 tinh khi\u1ebft \u2265 99,99%<\/td>\n–<\/td>\n<\/tr>\n
3<\/td>\nM\u00e1y n\u00e9n kh\u00ed<\/td>\n1 b\u1ed9<\/td>\n\u00c1p su\u1ea5t x\u1ea3 \u0111\u1ecbnh m\u1ee9c: 0,3 MPa<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.1.2 Thi\u1ebft b\u1ecb x\u1eed l\u00fd tr\u01b0\u1edbc m\u1eabu<\/h4>\n
\n
\n\n\n\n\n\n\n\n\n\n\n
S\u1ed1 Serial<\/th>\nT\u00ean<\/th>\nS\u1ed1 l\u01b0\u1ee3ng<\/th>\nY\u00eau c\u1ea7u k\u1ef9 thu\u1eadt<\/th>\nPh\u1ee5 ki\u1ec7n<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nT\u1ea5m n\u00f3ng ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9<\/td>\n1 b\u1ed9<\/td>\nNhi\u1ec7t \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c: Nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng ~ 300 \u2103<\/td>\n–<\/td>\n<\/tr>\n
2<\/td>\nC\u00e2n b\u1eb1ng \u0111i\u1ec7n t\u1eed<\/td>\n1 b\u1ed9<\/td>\n\u0110\u1ed9 nh\u1ea1y c\u1ea3m: 0,1 mg<\/td>\n–<\/td>\n<\/tr>\n
3<\/td>\nH\u1ec7 th\u1ed1ng n\u01b0\u1edbc si\u00eau tinh khi\u1ebft<\/td>\n1 b\u1ed9<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
4<\/td>\nMicropipette<\/td>\n1 m\u1ed7i<\/td>\nPh\u1ea1m vi: 20 \u03bcL ~ 200 \u03bcL, 100 \u03bcL ~ 1000 \u03bcL<\/td>\n–<\/td>\n<\/tr>\n
5<\/td>\nKh\u1ed1i l\u01b0\u1ee3ng Flask<\/td>\nM\u1ed9t s\u1ed1<\/td>\nKh\u1ed1i l\u01b0\u1ee3ng: 100 ml<\/td>\n–<\/td>\n<\/tr>\n
6<\/td>\n\u1ed1ng th\u1eed nghi\u1ec7m<\/td>\nM\u1ed9t s\u1ed1<\/td>\nKh\u1ed1i l\u01b0\u1ee3ng: 25 ml<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.2 Ph\u1ea3n \u1ee9ng<\/h3>\n

2.2.1 Ph\u1ea3n \u1ee9ng th\u00f4<\/h4>\n
\n
\n\n\n\n\n\n\n
S\u1ed1 Serial<\/th>\nT\u00ean<\/th>\nY\u00eau c\u1ea7u k\u1ef9 thu\u1eadt<\/th>\nNh\u1eadn x\u00e9t<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\naxit nitric<\/td>\nL\u1edbp MOS<\/td>\n–<\/td>\n<\/tr>\n
2<\/td>\nAxit clorhydric<\/td>\nThu\u1ed1c th\u1eed \u0111\u1ea3m b\u1ea3o (GR)<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.2 Ph\u1ea3n \u1ee9ng chu\u1ea9n b\u1ecb<\/h4>\n
\n
\n\n\n\n\n\n
S\u1ed1 Serial<\/th>\nT\u00ean<\/th>\nPh\u01b0\u01a1ng ph\u00e1p chu\u1ea9n b\u1ecb<\/th>\nNh\u1eadn x\u00e9t<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nGi\u1ea3i ph\u00e1p axit nitric (1 99)<\/td>\n\u0110o 10 ml axit nitric, t\u1eeb t\u1eeb th\u00eam v\u00e0o 990 ml n\u01b0\u1edbc deionized, v\u00e0 tr\u1ed9n t\u1ed1t.<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

2.3 Ti\u00eau chu\u1ea9n tham kh\u1ea3o<\/h3>\n

2.3.1 Gi\u1ea3i ph\u00e1p ch\u1ee9ng kho\u00e1n<\/h4>\n
\n
\n\n\n\n\n\n
S\u1ed1 Serial<\/th>\nKh\u00f4ng.<\/th>\nT\u00ean<\/th>\nY\u00eau c\u1ea7u k\u1ef9 thu\u1eadt<\/th>\nNh\u1eadn x\u00e9t<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\n\u0110\u1ed3ng GBW 08615<\/td>\nGi\u1ea3i ph\u00e1p ti\u00eau chu\u1ea9n \u0111\u1ed3ng nguy\u00ean t\u1ed1 \u0111\u01a1n<\/td>\nN\u1ed3ng \u0111\u1ed9: 1000 \u03bcg \/ ml<\/td>\nVi\u1ec7n \u0111o l\u01b0\u1eddng qu\u1ed1c gia, Trung Qu\u1ed1c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

3. T\u00ednh to\u00e1n k\u1ebft qu\u1ea3<\/h2>\n
H\u00e0m l\u01b0\u1ee3ng \u0111\u1ed3ng trong m\u1eabu \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c sau:<\/div>\n
\"\"<\/div>\n


<\/p>\n

\u1ede \u0111\u00e2u:<\/div>\n
    \n
  • X<\/span>\u00a0= H\u00e0m l\u01b0\u1ee3ng \u0111\u1ed3ng trong m\u1eabu, \u0111\u01a1n v\u1ecb: miligram m\u1ed7i kilogram (mg \/ kg);<\/li>\n
  • \u03c1 = N\u1ed3ng \u0111\u1ed9 kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1ed3ng trong dung d\u1ecbch th\u1eed nghi\u1ec7m m\u1eabu, \u0111\u01a1n v\u1ecb: microgram m\u1ed7i milil\u00edt (\u03bcg \/ mL);<\/li>\n
  • \u03c10<\/span>= N\u1ed3ng \u0111\u1ed9 kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1ed3ng trong dung d\u1ecbch tr\u1ed1ng, \u0111\u01a1n v\u1ecb: microgram m\u1ed7i milil\u00edt (\u03bcg \/ mL);<\/li>\n
  • f<\/span>\u00a0= Y\u1ebfu t\u1ed1 pha lo\u00e3ng c\u1ee7a dung d\u1ecbch m\u1eabu ti\u00eau h\u00f3a;<\/li>\n
  • V<\/span>\u00a0= T\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng dung d\u1ecbch m\u1eabu ti\u00eau h\u00f3a, \u0111\u01a1n v\u1ecb: milil\u00edt (mL);<\/li>\n
  • m<\/span>\u00a0Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a m\u1eabu, \u0111\u01a1n v\u1ecb: gram (g).<\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"

    1. Method Overview After the sample is digested with aqua regia, the determination is carried out using an air-acetylene flame at an instrument wavelength of 324.7 nm. 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 – Copper Hollow […]<\/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":[81,36],"tags":[],"class_list":["post-3902","post","type-post","status-publish","format-standard","hentry","category-petrochemical-and-chemical","category-applications"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/3902","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=3902"}],"version-history":[{"count":0,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/3902\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media?parent=3902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/categories?post=3902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/tags?post=3902"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}