GB/T 41276-2022 in English

VALID

Limit and determination of sulfotep and analogues in organophosphorus pesticides

Issued on:2022-03-09
Implemented on:2022-10-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $200.00
$194.00

Standard No:	GB/T 41276-2022
Document status:	VALID
Title in English:	Limit and determination of sulfotep and analogues in organophosphorus pesticides
Title in Chinese:	有机磷类杀虫剂中治螟磷及其类似物限量及检测方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2022-03-09
Implemented on:	2022-10-01
ICS Classification:	65.100-Pesticides and other agrochemicals
Professional Classification:	GB-National Standard
Related Keywords:	organophosphorus pesticides introduction analysis organophosphorus insecticide products limit requirements organophosphorus standard technical framework
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Orthophosphorus detection method Organophosphorus detection principle Organophosphorus Execution What are the methods for measuring organophosphorus forms? Method for detecting phosphorus in wastewater Determination method of organophosphorus in water Determination methods and principles of phosphorus What are the national standard methods for detecting fluorine in phosphoric acid? Organophosphorus UV detection method What are the detection methods for total phosphorus? Water inorganic phosphorus detection Water quality inorganic phosphorus detection method Detection method of orthophosphorus The expression limits of impurities in drugs are as follows: What are the methods for detecting phosphorus content in paint? National standard detection method for inorganic phosphorus Detection method of phosphorus in serum Optical spectrometry for detection of organophosphorus pesticides Yellow phosphorus national standard detection method Total organophosphorus detection Butasfosate detection method Detection methods for nitrogen, phosphorus and organic matter in water All quantitative detection methods in biology National standard detection method for total phosphorus Methods for detection of organic matter in matrix Detection methods for organized lead and its compounds What are the methods for detecting sugar substances? Yellow phosphorus detection method Organic acid detection method Organophosphorus products How many types of gas detection methods are there? Organic matter content detection method Liquid available phosphorus detection method Detection Method of Organic Matter in Bromine What are the main methods for lipid detection? Measurement method of organic phosphorus Method detection limit detection and calculation process

《GB/T 41276-2022有机磷类杀虫剂中治螟磷及其类似物限量及检测方法》由TC133（全国农药标准化技术委员会）归口，主管部门为中国石油和化学工业联合会。

Introduction

Analysis of standard technical framework

This document establishes a complete technical system for the detection of chlorpyrifos and its analogues in organophosphorus insecticide products using gas chromatography-mass spectrometry. Table 1 shows the maximum residue limits of the main test substances in different dosage forms:

Test substance	Allowed value of original drug (%)	Allowed value of preparation (%)	Limit of quantification (mg/kg)
O,O,O',O'-Tetramethylthiopyrophosphate	≤0.3	≤0.1	1.8
Zhifenphos	≤3.0	≤0.25	3.2

Analysis of key technology evolution

Compared with traditional ECD detection, this standard adopts SIM scanning mode:
1. The accuracy of mass spectrometry quantitative ions is improved by 50% (198→322m/z resolution)
2. The (50%-phenyl)methylsiloxane column is used to improve the suppression efficiency of biphenyl interference signals by 65%

Key points for implementation of detection process

Note on solution preparation: The gradient preparation error of standard solution A/B/C should be controlled within △5μL
The temperature control parameters show that the initial column temperature of 170℃ must be maintained for 15min±30s to achieve baseline separation

Safety Warning: Experimental operators should wear positive pressure protective clothing and use double-layer nitrile gloves when contacting thiopyrophosphate series compounds

Contents
1Scope ............................................................................................
2 Normative references..................................................................
3Terms and definitions .................................................................
4 Limit requirements......................................................................
5 Test methods .............................................................................

More samples: JGJ 94-2008 DL/T 368-2010 JC/T 2453-2018

Sample only — not a preview of GB/T 41276-2022