GB/T 40462-2021Determination of 19 veterinary medicines in organic fertilizer—Liquid chromatography-tandem mass spectrometry (English PDF)
有机肥料中19种兽药残留量的测定 液相色谱串联质谱法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
August 20, 2021
Implementation date
March 1, 2022
Scope
GB/T 40462-2021 is the English-translated version of 有机肥料中19种兽药残留量的测定 液相色谱串联质谱法.
GB/T 40462-2021 is a laboratory method for measuring residues of 19 veterinary drugs in organic fertilizers by liquid chromatography-tandem mass spectrometry.
The drugs covered are amantadine, a series of sulfonamides such as sulfapyridine, sulfathiazole, sulfamethazine, sulfamethizole and sulfachloropyridazine, and the fluoroquinolones norfloxacin, ciprofloxacin, enrofloxacin and ofloxacin.
The sample is extracted with Na2EDTA-McIlvaine solution and acetonitrile-acetic acid, cleaned up on a solid-phase extraction column and analysed by LC-MS/MS, with quantification by external or internal standard.
The detection limits are 20 µg/kg for sulfathiazole, sulfa-6-methoxypyrimidine, sulfamethizole and sulfachloropyridazine and 5 µg/kg for the other analytes. Water must meet grade one of GB/T 6682. It was issued on 20 August 2021 and has applied since 1 March 2022.
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Document preview — GB/T 40462-2021
National Standard of the People's Republic of China
- ICS
- 65.080
- Classification
- G 20
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Principle
- 5 Reagents or materials
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.
1 Scope
This document describes the method for the determination of 19 veterinary drug residues in organic fertilizers by liquid chromatography-tandem mass spectrometry.
This document is applicable to Amantadine (AMT), Sulfapyridine (SPD), Sulfapyridazine (SDZ) and Sulfamethoxazole in organic fertilizers (SMX), Sulfathiazole (STZ), Sulfamethazine (SMI), Sulfamethoxazole (SIZ), Sulfamethizole (SMT), Sulfamethoxazole Methane pyrimidine (SMZ), sulfa-6-methoxypyrimidine (SMM), sulfa-para-methoxypyrimidine (SM), sulfamethoxine (SMPZ), sulfachloropyridazine (SCP), Sulfamethoxine (SDO), Sulfamonomethoxine (SDM), Norfloxacin (NFC), Ciprofloxacin (CFC), Enno Determination of the residual amount of floxacin (EFC) and ofloxacin (OFC).
The detection limits of this method are. sulfathiazole, sulfa-6-methoxypyrimidine, sulfamethizole and sulfachloropyridazine are all 20 µg/kg; its The remaining targets are all 5µg/kg.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 6682 Analytical laboratory water specifications and test methods
GB/T 8571 Compound Fertilizer Laboratory Sample Preparation
3 Terms and definitions
There are no terms and definitions that need to be defined in this document.
4 Principle
The residual veterinary drugs in the sample are extracted with Na2EDTA-Mclvaine solution and acetonitrile-acetic acid solution, purified by solid phase extraction column, and High-efficiency liquid chromatography tandem mass spectrometer for determination, external standard or internal standard method for quantification.
5 Reagents or materials
Unless otherwise stated, only use analytically pure reagents that meet the requirements for residual detection.
5.1 Water, GB/T 6682, level one.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
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Related Standards
GB/T 6682-2008 — Water for analytical laboratory use - Specification and test methods
GB/T 8571-2008 — Preparation of laboratory samples for compound fertilizers
GB/T 7251.4-2026 — Low-voltage switchgear and controlgear assemblies - Part 4: Particular requirements for assemblies for construction sites (ACS)
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