Vegetable oils, organochlorine

The use of SPE with porous materials such as alumina, diatomaceous earth, Horisil and silica for the cleanup of fat-soluble organochlorine pesticides in fatty foods such as meat, flsh, shellfish, milk and vegetable oils has been well documented. The choice of elution solvents is critical because relatively small amounts of lipid in the final extract can cause rapid deterioration of GC capillary columns and also contaminate the gas chromatograph. A number of workers have used a porous material in tandem with Cig to effect an improved cleanup.Di Mucchio employed a multicartridge system comprising Extrelut, silica and Cig to extract organophosphorus pesticides from oils and fatty extracts. Relatively few literature applications include the pyrethroids, but Ramesh and Balasubramanian reported a simple carbon-based SPE method for the analysis of pyrethroids in vegetable oil. 

Young SJV, Kamps LR. 1982. Gas-liquid chromatographic determination of nonpolar organochlorine pesticide residues in a crude vegetable oil and its refinery by-products. J Assoc Off Anal Chem 65 916-920. 

Changes in the Contents of Organochlorine Pesticides During the Production of Edible Vegetable Oils... 

PERCENTAGE REDUCTION OF ORGANOCHLORINE PESTICIDE CONTENTS IN PROCESSING OF VEGETABLE OILS... 

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