Determination of Pyrethroid Pesticide Residues in Traditional Chinese Medicines by Gas Chromatography-Mass Spectrometry with Negative Chemical Ionization

›› 2006, Vol. 1 ›› Issue (2): 55-59.

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Determination of Pyrethroid Pesticide Residues in Traditional Chinese Medicines by Gas Chromatography-Mass Spectrometry with Negative Chemical Ionization

He Zhu¹; Yuehu Pei¹*; Aihua Song²

1 Department of Natural Products Chemistry, Shenyang Pharmaceutical University, Shenyang 110016, China 2 Instrument Analysis Center, Shenyang Pharmaceutical University, Shenyang 110016, China

Received:2006-01-01 Revised:2006-01-01 Online:2006-05-15 Published:2006-05-15
Contact: Yuehu Pei1

Abstract

Abstract: A method is described for determining and screening 5 pyrethroid pesticides in 48 kinds of traditional Chinese medicines, each as 10 batches,
by gas chromatography–mass spectrometry (GC-MS) with negative chemical ionization (NCI). The method had been tested for 5 pesticides in
6 traditional Chinese medicinal plants with limits of detection (LODs) from 0.5ppb to 5ppb. The recoveries of the 5 pesticides in the 6 plants
ranged from 70% to 120% with relative standard deviations < 10% . The method is rapid, sensitive and suitable for the analysis of large
numbers of samples at the same time.

Key words: pyrethroid pesticides, GC-MS, negative chemical ionization, Traditional Chinese Medicine

He Zhu;Yuehu Pei*;Aihua Song. Determination of Pyrethroid Pesticide Residues in Traditional Chinese Medicines by Gas Chromatography-Mass Spectrometry with Negative Chemical Ionization[J]. , 2006, 1(2): 55-59.

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Determination of Pyrethroid Pesticide Residues in Traditional Chinese Medicines by Gas Chromatography-Mass Spectrometry with Negative Chemical Ionization

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Determination of Pyrethroid Pesticide Residues in Traditional Chinese Medicines by Gas Chromatography-Mass Spectrometry with Negative Chemical Ionization

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