Abstract

Abstract A simplified rapid method is presented to determine organochlorine pesticides and polychlorinated biphenyls in fish. Samples are mixed with sodium sulfate and blended with petroleum ether. A portion of the blend is placed on a miniaturized Florisil column and compounds are eluted with mixtures containing 6 and 15% ethyl ether in petroleum ether. Gas-liquid chromatography with electron capture detection comparable to the official methods (29.018) is used for determination of residues. Each of 7 collaborators reported results in duplicate for 10 samples containing one or more of the following compounds: p,p’-DDD,p,p’-DDE, p,p’-DDT, dieldrin, heptachlor epoxide, Aroclor 1254, and Aroclor 1260. Recoveries ranged from 79.3 to 100.7%. The coefficients of variation between laboratories ranged from 6.3 to 20.6%. This method allows up to 80% reduction in reagents and up to 50% reduction in analytical time, and requires less laboratory space than current official methods. The method has been adopted official first action.

Keywords

ChemistryDieldrinChromatographyHeptachlorPetroleum etherElectron capture detectorPesticideElutionEtherEnvironmental chemistryGas chromatographyReagentOrganic chemistryExtraction (chemistry)

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Publication Info

Year
1983
Type
article
Volume
66
Issue
4
Pages
969-973
Citations
29
Access
Closed

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Cite This

D. Ronald Erney, Rodney L Bong, Walter Bulmer et al. (1983). Rapid Screening Procedure for Pesticides and Polychlorinated Biphenyls in Fish: Collaborative Study. Journal of AOAC INTERNATIONAL , 66 (4) , 969-973. https://doi.org/10.1093/jaoac/66.4.969

Identifiers

DOI
10.1093/jaoac/66.4.969