Dung d\u1ecbch n\u00e0y gi\u00fap ng\u01b0\u1eddi d\u00f9ng \u0111\u00e1nh gi\u00e1:<\/p>\n
- \n
- \u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a m\u00e1y \u0111o<\/li>\n
- Ch\u1ea5t l\u01b0\u1ee3ng thu\u1ed1c th\u1eed<\/li>\n
- Sai s\u1ed1 thao t\u00e1c<\/li>\n
- \u0110\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a quy tr\u00ecnh ph\u00e2n t\u00edch<\/li>\n<\/ul>\n
![\"Dung](\"https:\/\/achison.com\/wp-content\/uploads\/2026\/05\/Dung-Dich-Chuan-Kiem-Tra-COD.jpg\" "\\"\\"")
<\/p>\n
\nCOD v\u00e0 TOC l\u00e0 g\u00ec?<\/h2>\n
COD – Chemical Oxygen Demand<\/h3>\n
COD l\u00e0 ch\u1ec9 s\u1ed1 th\u1ec3 hi\u1ec7n l\u01b0\u1ee3ng oxy c\u1ea7n thi\u1ebft \u0111\u1ec3 oxy h\u00f3a c\u00e1c ch\u1ea5t h\u1eefu c\u01a1 trong n\u01b0\u1edbc.<\/p>\n
Th\u00f4ng s\u1ed1 n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong:<\/p>\n
- \n
- Nh\u00e0 m\u00e1y x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/li>\n
- Ph\u00f2ng th\u00ed nghi\u1ec7m m\u00f4i tr\u01b0\u1eddng<\/li>\n
- Ki\u1ec3m tra n\u01b0\u1edbc c\u00f4ng nghi\u1ec7p<\/li>\n
- H\u1ec7 th\u1ed1ng x\u1eed l\u00fd n\u01b0\u1edbc s\u1ea3n xu\u1ea5t<\/li>\n<\/ul>\n
TOC – Total Organic Carbon<\/h3>\n
TOC l\u00e0 t\u1ed5ng h\u00e0m l\u01b0\u1ee3ng carbon h\u1eefu c\u01a1 c\u00f3 trong n\u01b0\u1edbc.<\/p>\n
\u0110\u00e2y l\u00e0 ch\u1ec9 s\u1ed1 quan tr\u1ecdng gi\u00fap \u0111\u00e1nh gi\u00e1:<\/p>\n
- \n
- M\u1ee9c \u0111\u1ed9 \u00f4 nhi\u1ec5m h\u1eefu c\u01a1<\/li>\n
- Ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc<\/li>\n
- Hi\u1ec7u qu\u1ea3 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/li>\n<\/ul>\n
\u01afu \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a\u00a0dung d\u1ecbch chu\u1ea9n ki\u1ec3m tra COD ValidCheck COD 120 mg\/L<\/h2>\n
\u0110\u1ed9 ch\u00ednh x\u00e1c cao<\/h3>\n
Dung d\u1ecbch chu\u1ea9n \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t v\u1edbi sai s\u1ed1 th\u1ea5p, gi\u00fap \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady trong ph\u00e2n t\u00edch.<\/p>\n
S\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp<\/h3>\n
Kh\u00f4ng c\u1ea7n pha lo\u00e3ng hay chu\u1ea9n b\u1ecb ph\u1ee9c t\u1ea1p, ti\u1ebft ki\u1ec7m th\u1eddi gian thao t\u00e1c cho k\u1ef9 thu\u1eadt vi\u00ean.<\/p>\n
Ki\u1ec3m tra to\u00e0n b\u1ed9 quy tr\u00ecnh<\/h3>\n
S\u1ea3n ph\u1ea9m kh\u00f4ng ch\u1ec9 gi\u00fap ki\u1ec3m tra m\u00e1y \u0111o m\u00e0 c\u00f2n h\u1ed7 tr\u1ee3 \u0111\u00e1nh gi\u00e1:<\/p>\n
- \n
- Thu\u1ed1c th\u1eed<\/li>\n
- Cuvette<\/li>\n
- Quy tr\u00ecnh thao t\u00e1c<\/li>\n
- \u0110i\u1ec1u ki\u1ec7n \u0111o<\/li>\n<\/ul>\n
Ph\u00f9 h\u1ee3p ti\u00eau chu\u1ea9n QA\/QC<\/h3>\n
ValidCheck \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong:<\/p>\n
- \n
- ISO 17025<\/li>\n
- QA\/QC n\u1ed9i b\u1ed9<\/li>\n
- Ki\u1ec3m \u0111\u1ecbnh ph\u00f2ng lab<\/li>\n
- Nh\u00e0 m\u00e1y x\u1eed l\u00fd n\u01b0\u1edbc<\/li>\n<\/ul>\n
\n\u1ee8ng d\u1ee5ng c\u1ee7a dung d\u1ecbch chu\u1ea9n ki\u1ec3m tra COD ValidCheck COD 120 mg\/L TOC 48 mg\/L<\/h2>\n
S\u1ea3n ph\u1ea9m ph\u00f9 h\u1ee3p cho:<\/p>\n
- \n
- Ph\u00f2ng lab m\u00f4i tr\u01b0\u1eddng<\/li>\n
- Nh\u00e0 m\u00e1y x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/li>\n
- Ng\u00e0nh th\u1ef1c ph\u1ea9m<\/li>\n
- Ng\u00e0nh h\u00f3a ch\u1ea5t<\/li>\n
- Ng\u00e0nh s\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p<\/li>\n
- H\u1ec7 th\u1ed1ng ki\u1ec3m nghi\u1ec7m n\u01b0\u1edbc<\/li>\n<\/ul>\n
Ngo\u00e0i ra, dung d\u1ecbch c\u00f2n th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng v\u1edbi c\u00e1c d\u00f2ng m\u00e1y:<\/p>\n
- \n
- MD 100<\/li>\n
- MD 200<\/li>\n
- MD 600<\/li>\n
- XD 7000<\/li>\n
- XD 7500<\/li>\n<\/ul>\n
H\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng c\u01a1 b\u1ea3n<\/h2>\n
B\u01b0\u1edbc 1<\/h3>\n
Chu\u1ea9n b\u1ecb m\u00e1y \u0111o COD v\u00e0 thu\u1ed1c th\u1eed theo \u0111\u00fang quy tr\u00ecnh.<\/p>\n
B\u01b0\u1edbc 2<\/h3>\n
L\u1ea5y dung d\u1ecbch ValidCheck v\u00e0 th\u1ef1c hi\u1ec7n ph\u00e9p \u0111o nh\u01b0 m\u1eabu n\u01b0\u1edbc th\u00f4ng th\u01b0\u1eddng.<\/p>\n
B\u01b0\u1edbc 3<\/h3>\n
So s\u00e1nh k\u1ebft qu\u1ea3 \u0111o v\u1edbi gi\u00e1 tr\u1ecb chu\u1ea9n:<\/p>\n
- \n
- COD kho\u1ea3ng 120 mg\/L<\/li>\n
- TOC kho\u1ea3ng 48 mg\/L<\/li>\n<\/ul>\n
B\u01b0\u1edbc 4<\/h3>\n
N\u1ebfu k\u1ebft qu\u1ea3 sai l\u1ec7ch l\u1edbn, c\u1ea7n ki\u1ec3m tra:<\/p>\n
- \n
- Calibration m\u00e1y<\/li>\n
- Thu\u1ed1c th\u1eed<\/li>\n
- Cuvette<\/li>\n
- Quy tr\u00ecnh thao t\u00e1c<\/li>\n<\/ul>\n
ValidCheck COD 120 mg\/L TOC 48 mg\/L l\u00e0 gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3 gi\u00fap ki\u1ec3m tra v\u00e0 x\u00e1c minh \u0111\u1ed9 ch\u00ednh x\u00e1c trong ph\u00e2n t\u00edch COD\/TOC. V\u1edbi kh\u1ea3 n\u0103ng ki\u1ec3m tra to\u00e0n di\u1ec7n t\u1eeb thi\u1ebft b\u1ecb \u0111\u1ebfn quy tr\u00ecnh thao t\u00e1c, s\u1ea3n ph\u1ea9m l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p cho c\u00e1c ph\u00f2ng lab, nh\u00e0 m\u00e1y x\u1eed l\u00fd n\u01b0\u1edbc v\u00e0 h\u1ec7 th\u1ed1ng QA\/QC chuy\u00ean nghi\u1ec7p.<\/p>\n
N\u1ebfu b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm dung d\u1ecbch chu\u1ea9n COD ch\u00ednh x\u00e1c, \u1ed5n \u0111\u1ecbnh v\u00e0 d\u1ec5 s\u1eed d\u1ee5ng th\u00ec \u0111\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng s\u1ea3n ph\u1ea9m \u0111\u00e1ng c\u00e2n nh\u1eafc hi\u1ec7n nay.<\/p>\n
ACHISON \u2013 \u0110\u01a1n V\u1ecb Cung C\u1ea5p H\u00f3a Ch\u1ea5t C\u00f4ng Nghi\u1ec7p Uy T\u00edn<\/strong><\/a><\/h2>\n
![\"chemicals\"](\"https:\/\/achison.com\/wp-content\/uploads\/2022\/02\/chemicals.jpeg\" "\\"H\u00f3a")
<\/p>\n