YC/T 180-2004 in English

VALID

Tobacco and tobacco products—Determination of camphechlor residues—Gas chromatographic method

Issued on:2004-10-19
Implemented on:2005-03-01
File Format:PDF
Delivery:Via email within 1~3 business days

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Standard No:	YC/T 180-2004
Document status:	VALID
Title in English:	Tobacco and tobacco products—Determination of camphechlor residues—Gas chromatographic method
Title in Chinese:	烟草及烟草制品毒杀芬农药残留量的测定气相色谱法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2004-10-19
Implemented on:	2005-03-01
ICS Classification:	65.160-Tobacco, tobacco products and related equipment
Chinese Classification:	X87-Tobacco
Professional Classification:	YC-Tobacco
Related Topics:	Pesticide residues tobacco products Vapor phase pesticide residue Pesticide fen Gas Chromatographic Determination of Pesticides in Detection of Pesticide Residues by Gas Chromatography gas chromatograph sample Gas Chromatography Pesticides Electronic Vapor Phase Pesticides Pesticide gas phase detector Pesticide gas phase detector Pesticide residues Pesticide residue chromatographic peak front Gas Chromatographic Detection of Pesticide Residues... Toxaphene tobacco products Fern Determination of Plasma Pigments in Tobacco and Tobacco Products by High Performance Liquid Chromatography Corrigendum for Determination of Pesticide Residues Gas Chromatography in the Detection of Pesticides Drugs + Spectrum Tobacco Products Testing Methods Gas phase + pesticide residue Tobacco residual period Chromatography Pesticides Determination of Pectin in Tobacco and Tobacco Products Ion Chromatography Two-point method for determination of pesticide residues Gas phase sample carryover to kill by poison Total sugar in tobacco and tobacco products Tobacco and Tobacco Products Maximum pesticide residue limits in tobacco and tobacco products Method for determination of residual moisture in flue gas national tobacco Determination method of ibuprofen raw material content Liquid chromatography method for detecting pesticide residues in agricultural products Pesticide residues in tobacco extracts

本标准规定了烟草中毒杀芬残留量的气相色谱测定法。本标准适用于烟草和烟草制品。

Introduction

Analysis of key points of standard technology

Parameter type	Standard requirements	Optimization suggestions
Chromatographic column	DB-35 capillary column(30m×0.32mm×0.25μm)	DB-5MS column can be tested for comparative verification
Detector	Electron capture detector (ECD)	Base flow value is recommended to be set at 1-5pA
Temperature program	110℃→320℃(15℃/min)	The initial time can be extended to 1min

Key operation process

Sample preparation: 5g sample and Florisil are loaded in layers, and Soxhlet extractor is extracted with n-hexane for 4.5h
Chromatographic conditions: carrier gas linear velocity 45cm/s, injection port 250℃/detector 350℃
Method validation: recovery rate needs to be ＞95% (dieldrin validation)

Technology evolution analysis

This standard adopts the mainstream technology in 2004:

Pretreatment: Retain traditional Soxhlet extraction, and the current method mostly adopts accelerated solvent extraction (ASE)
Detection limit: 0.1μg/mL, the current instrument sensitivity can be increased by 10 times
Chromatographic column: DB-35 stationary phase is now mostly replaced by DB-35MS with similar polarity

Implementation Notes

A case from a testing center shows that when florisil is not sufficiently activated, the recovery rate of toxaphene will drop below 80%. Suggestions:

Strictly follow clause 4.5.2 and activate at 550℃ for 5 hours
Perform dieldrin recovery verification for each batch
Control the ambient humidity to <40%RH

Extended application of standards

This method has been proven to be applicable to:

Pesticide control in tobacco planting process
Import inspection of tobacco products
Organic tobacco certification testing

More samples: QC/T 942-2021 JC/T 2453-2018 JGJ 94-2008

Sample only — not a preview of YC/T 180-2004

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