Headspace Solid-phase Microextraction and Gas Chromatography-Mass Spectrometry for the Rapid Detection of 5 Organophosphorus Pesticide Residues in Strawberries

doi:10.7506/spkx1002-6630-200914037

FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (14): 191-193.doi: 10.7506/spkx1002-6630-200914037

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Headspace Solid-phase Microextraction and Gas Chromatography-Mass Spectrometry for the Rapid Detection of 5 Organophosphorus Pesticide Residues in Strawberries

LI Run-yan1，YUAN Xian-rui2，LI Hui3,*，ZHANG Jing-xuan3，CHEN Fang4

1. College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China；
2. Analytical and Testing Center of Hebei Province, Hebei University of Science and Technology, Shijiazhuang 050018, China；
3. Hebei Laboratory of Food Safety, Shijiazhuang 050051, China；
4. Hebei Jiupai Pharmaceutical Co. Ltd., Shijiazhuang 050000, China

Received:2008-11-07 Revised:2009-01-21 Online:2009-07-15 Published:2010-12-29
Contact: LI Hui3,*， E-mail:hbulihui2008@126.com

Abstract

Abstract:

A headspace solid-phase microextraction (HS-SPME) method in combination with GC-MS was developed for the rapid determination of diazinon, fenitrothion, fenthion, parathion ethyl and ethion in strawberries. The operating conditions of HS-SPME and GC-MS were optimized. A good linear relationship was found to each of the organophosphorus pesticides and the correlation coefficients were in the range of 0.989－0.998. The precision for determining the organophosphorus pesticides by this method (n = 5) varied from 7.2% to 12.7% and the limits of detection were 5.2－10.7 μg/kg. The spike recoveries ranged 76%－ 94%. This method demonstrates many advantages including promptness, sensitivity, accuracy and low solvent consumption and therefore is able to meet the demand for determination of pesticide residues.

Key words: strawberry, headspace solid-phase microextraction, gas chromatography-mass spectrometry, organophosphorus, rapid detection

CLC Number:

LI Run-yan1，YUAN Xian-rui2，LI Hui3,*，ZHANG Jing-xuan3，CHEN Fang4. Headspace Solid-phase Microextraction and Gas Chromatography-Mass Spectrometry for the Rapid Detection of 5 Organophosphorus Pesticide Residues in Strawberries[J]. FOOD SCIENCE, 2009, 30(14): 191-193.

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Headspace Solid-phase Microextraction and Gas Chromatography-Mass Spectrometry for the Rapid Detection of 5 Organophosphorus Pesticide Residues in Strawberries

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