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Determination of Several Pesticide Residues in Tea by Gas Chromatography

Mei Han, YI Sheng-guo, Yang DingQing, Hou Xue, Yang Xiao-feng, Luo Xiao-mei

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Abstract

A method for determination of several pesticide residues(DDT,Dicofol,Cypermethin,Bifenthrin,Eltamethrin,Fenvalerate;DDVP;Acephate,Methamidophos,Dimethoate,Fenitrothion,Quinalphos)in tea was developed by GC-ECD and GC-FPD with a purified method using a column packed with active carbon and Florisil.The recoveries ranged from 75.5 %-115.3 %,with an average RSD of 1.2 %-5.8 %.The detection limits of this method were between 0.01-0.1 mg/kg.This method was rapid,high-decontaminating and suitable,It could fulfill the requirements for the analysis of pesticide multi-residues in tea.

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What this paper is about

A method for determination of several pesticide residues(DDT,Dicofol,Cypermethin,Bifenthrin,Eltamethrin,Fenvalerate;DDVP;Acephate,Methamidophos,Dimethoate,Fenitrothion,Quinalphos)in tea was developed by GC-ECD and GC-FPD with a purified method using a column packed with active carbon and Florisil.The recoveries ranged from 75.5 %-115.3 %,with an average RSD of 1.2 %-5.8 %.The detection limits of this method were between 0.01-0.1 mg/kg.This method was rapid,high-decontaminating and suitable,It could fulfill the requirements for the analysis of pesticide multi-residues in tea.

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Available abstract

A method for determination of several pesticide residues(DDT,Dicofol,Cypermethin,Bifenthrin,Eltamethrin,Fenvalerate;DDVP;Acephate,Methamidophos,Dimethoate,Fenitrothion,Quinalphos)in tea was developed by GC-ECD and GC-FPD with a purified method using a column packed with active carbon and Florisil.The recoveries ranged from 75.5 %-115.3 %,with an average RSD of 1.2 %-5.8 %.The detection limits of this method were between 0.01-0.1 mg/kg.This method was rapid,high-decontaminating and suitable,It could fulfill the requirements for the analysis of pesticide multi-residues in tea.

Key concepts: Methamidophos, Acephate, Dimethoate, Dicofol, Chemistry, Quinalphos, Bifenthrin, Fenvalerate

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