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Analysis of pesticide residues in tea using accelerated solvent extraction with in-cell cleanup and gas chromatography tandem mass spectrometry

Abdul Kadir, Haslina and Abas, Faridah and Zakaria, Osman and Ismail, Intan Safinar and Lajis, Nordin (2015) Analysis of pesticide residues in tea using accelerated solvent extraction with in-cell cleanup and gas chromatography tandem mass spectrometry. Analytical Methods, 7 (7). pp. 3141-3147. ISSN 1759-9660; ESSN: 1759-9679

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Abstract

A fast, simple and easily automated method was developed for the simultaneous determination of pesticide residues in tea using accelerated solvent extraction (ASE) with in-cell clean up and gas chromatography-tandem mass spectrometry (GC-MS/MS). This method integrates extraction and clean up processes into a single step, by adding a clean-up sorbent along with the sample into the extraction cell. The efficiency of this method was characterized in terms of its recovery (with values ranging from 90 to 98%), repeatability along with intermediate precision (showing relative standard deviations less than 15%), and sensitivity (providing detection limits between 0.001 and 0.007mgg1). The concentration range of the pesticide residues found in the sample is from 0.008 to 0.161mgg1. The relative expanded uncertainty achieved for this method ranged from 24% to 34%. The results indicate that the proposed method is easy and reliable for the determination of pesticide residues in tea, and it is suitable for use in routine analysis.

Item Type:Article
Keyword:Pesticide; Accelerated solvent extraction (ASE)
Faculty or Institute:Institute of Bioscience
Publisher:Royal Society of Chemistry
DOI Number:10.1039/C4AY03053B
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1039/C4AY03053B
ID Code:43757
Deposited By: Mohd Hafiz Che Mahasan
Deposited On:20 Sep 2016 13:39
Last Modified:20 Sep 2016 13:39

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