Determination by gas-liquid chromatography of trace amounts of soft polyvinyl chloride plastic additives in aqueous solutions. I. Epoxidized vegetable oils.
A gas-liquid chromatographic method for the determination of epoxidized vegetable oils (EVO), such as epoxidized soybean oil and epoxidized linseed oil, in aqueous solutions is described. The EVOs are extracted with n-hexane and transesterified to the methyl esters by sodium methoxide in methanol. 3% OV-210 is used as the stationary phase. The weakest standard solution corresponds to 5 micrograms/l (5 ppb) of EVO in an aqueous sample. The reproducibility of a single analysis is 5%. The method is used for the determination of EVO in intravenous fluids stored in flexible polyvinyl chloride bags.
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D002849:Chromatography, Gas; D004852:Epoxy Compounds / Q000032:analysis; D010938:Plant Oils / Q000032:analysis*; D011143:Polyvinyl Chloride / Q000032:analysis*; D011145:Polyvinyls / Q000032:analysis*; D013055:Spectrophotometry, Infrared
D004852:Epoxy Compounds; D010938:Plant Oils; D011145:Polyvinyls; D011143:Polyvinyl Chloride