Determination of Λ-Cyhalothrin in palm and palm kernel oils using tandem solid-phase extraction cartridges

Muhamad, H. and Zainudin, B.H. and Abu Bakar, N.K. (2012) Determination of Λ-Cyhalothrin in palm and palm kernel oils using tandem solid-phase extraction cartridges. Journal of Oil Palm Research, 24. pp. 1303-1309. ISSN 1511-2780

Determination_of_Lambda-Cyhalothrin_In_Palm_And_Palm_Kernel_Oils_Using_Tandem_Solid-Phase_Extraction_Cartridges.pdf - Published Version

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This article outlines a new method based on low-temperature fat precipitation extraction with acetonitrile and graphitised carbon black/primary secondary amine (GCB/PSA) solid-phase extraction clean-up for the extraction of lambda-cyhalothrin residue in both crude palm oil (CPO) and crude palm kernel oil (CPKO). Determination of lambda-cyhalothrin was then carried out using gas chromatography (GC) equipped with an electron capture detector (ECD). Analyses for lambda-cyhalothrin in palm oil and palm kernel oil samples spiked with different levels of lambda-cyhalothrin (0.05, 0.08, 0.1, 0.5, and 1.0 mu g g(-1)) were performed. Mean recoveries for six replicates ranged from 82 to 98 for CPO and from 86 to 94 for CPKO, with relative standard deviation (RSD) values of less than 10 in most cases. The limit of detection for lambda-cyhalothrin in both CPO and CPKO was 0.05 mu g g(-1). The method was successfully applied to the analysis of lambda-cyhalothrin in CPO samples obtained from local palm oil mills throughout Malaysia. No lambda-cyhalothrin was found in the 30 samples analysed.

Item Type: Article
Uncontrolled Keywords: Pesticide lambda-cyhalothrin crude palm oil crude palm kernel oil gas chromatography olive oil insecticides
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science > Dept of Chemistry
Depositing User: miss munirah saadom
Date Deposited: 02 Jul 2013 01:29
Last Modified: 02 Jul 2013 01:29

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