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Determination of organochlorine and pyrethroid pesticides in fruit and vegetables using solid phase extraction clean-up cartridges.


Citation

Sharif, Zawiyah and Che Man, Yaakob and Sheikh Abdul Hamid, Nazimah and Chin, Cheow Keat (2006) Determination of organochlorine and pyrethroid pesticides in fruit and vegetables using solid phase extraction clean-up cartridges. Journal of Chromatography A, 1127 (1-2). pp. 254-261. ISSN 0021-9673

Abstract / Synopsis

A method to determine six organochlorine and three pyrethroid pesticides in grape, orange, tomato, carrot and green mustard based on solvent extraction followed by solid phase extraction (SPE) clean-up is described. The pesticides were spiked into the sample prior to analysis, extracted with ethyl acetate, evaporated and reconstituted with a solvent mixture of acetone:n-hexane (3:7). Three different sorbents (Strong Anion Exchanger/Primary Secondary Amine (SAX/PSA), Florisil and C18) were used for the clean-up step. Pesticides were eluted with 5mL of acetone:n-hexane (3:7, v/v) and determined by gas chromatography and electron-capture detection (GC–ECD). SAX/PSA was the sorbent, which provided chromatograms with less interference and the mean recoveries obtained were within 70–120% except for captafol. The captafol recoveries for grape were within acceptable range with C18 clean-up column.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Food Science and Technology
DOI Number: 10.1016/j.chroma.2006.06.007
Publisher: Elsevier
Keywords: Organochlorine pesticides, Pyrethroid pesticides, Clean-up, Interferences, Fruit and vegetables
Depositing User: Samsida Samsudin
Date Deposited: 17 May 2010 15:51
Last Modified: 17 May 2010 15:54
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.chroma.2006.06.007
URI: http://psasir.upm.edu.my/id/eprint/6482
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