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Determination of metronidazole and dimetridazole in edible animal and their feeds for import and export. LC-MS/MS method
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Basic data
| Standard ID | SN/T 4809-2017 (SN/T4809-2017) |
| Description (Translated English) | Determination of metronidazole and dimetridazole in edible animal and their feeds for import and export. LC-MS/MS method |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | B46 |
| Word Count Estimation | 14,118 |
| Date of Issue | 2017-07-21 |
| Date of Implementation | 2018-03-01 |
| Regulation (derived from) | State-Quality-Inspection-Accreditation (2017) 337 |
| Issuing agency(ies) | General Administration of Customs |
SN/T 4809-2017: Determination of metronidazole and dimetridazole in edible animal and their feeds for import and export. LC-MS/MS method
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(Import and export of edible animals, feed metronidazole and metronidazole drugs in the determination of liquid chromatography-mass spectrometry/ mass spectrometry)
People's Republic of China entry and exit inspection and quarantine industry standards
Import and export of food animals, feed metronidazole and diazot
Determination of imidazole drugs by liquid chromatography-mass spectrometry/mass spectrometry
Released on.2017-07-21
2018-03-01 implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Entry-Exit Inspection and Quarantine
Industry Standard
Import and export of food animals, feed metronidazole and diazot
Determination of imidazole drugs by liquid chromatography-mass spectrometry/mass spectrometry
China Standard Press Publishing
First edition, May.2018
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. Shandong Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Zhejiang Entry-Exit Inspection and Quarantine
Bureau, Shandong Animal Husbandry and Veterinary Vocational College.
The main drafters of this standard. Zhang Jinling, Guo Liqiang, Sun Mingjun, Li Kai, Hou Jianbo, Wu Wei, Zhang Xiaowen, Shao Erbo, Cui Xiaona, Wang Hongtao.
Import and export of food animals, feed metronidazole and diazot
Determination of imidazole drugs by liquid chromatography-mass spectrometry/mass spectrometry
1 Scope
This standard specifies metronidazole and dimetridazole in import and export feed, metronidazole and its metabolite hydroxy metronidazole in food animals.
Liquid chromatography-mass spectrometry/mass spectrometry for the determination of nitroimidazole and its metabolite hydroxydimetridazole residue.
This standard applies to metronidazole and dimetridazole in imported and exported feed, metronidazole in livestock and poultry serum and urine, and its metabolite hydroxymethylnitrite.
Determination of azole, dimetridazole and its metabolite hydroxy dimetridazole residue.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6682 Analytical laboratory water specifications and test methods
3 Principle of the method
The sample was extracted with ethyl acetate, dried under nitrogen, dissolved in a hydrochloric acid solution, and purified by a mixed cation exchange column.
Spectrometry/mass spectrometry, internal standard method for quantification.
4 reagents and materials
All reagents were of analytical grade unless otherwise specified; water is primary water in accordance with GB/T 6682.
4.1 Ethyl ester ethyl ester. chromatographically pure.
4.2 Acetonitrile. Chromatographically pure.
4.3 Anhydrous magnesium sulfate.
4.4 Hydrochloric acid. 36%~38%.
4.5 Methanol. Chromatographically pure.
4.6 Ammonia. 25%~28%.
4.7 Formic acid. chromatographically pure.
4.8 Mixed cation exchange column. 60mg/3mL.
4.9 0.1 mol/L hydrochloric acid. Pipette 5 mL of hydrochloric acid (4.4) and mix with 595 mL of water.
4.10 Elution solution. 5 mL of ammonia (4.6) and 95 mL of methanol (4.5) were mixed.
4.11 0.1% formic acid water. 1 mL formic acid (4.7) and 999 mL of water were mixed.
4.12 Constant volume solution. Take 80 mL of 0.1% formic acid water (4.11) and mix with 20 mL of acetonitrile.
4.13 Standard. Metronidazole (C6H9N3O3, CAS. 443-48-1), purity ≥99.0%; Hydroxy metronidazole
(HydroxyMetronidazole, C6H9N3O4, CAS. 4812-40-2), purity ≥ 99.0%. Dimetridazole (Dimetridazole,
C5H7N3O2, CAS No. 551-92-8), purity ≥99.0%; Hydroxydimetridazole (C5H7N3O3,
CASN o.936-05-0), purity ≥99.0%; Dimetridazole-D3, C5H4D3N3O2, CASN o.64678-
...
