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2011•Science and Technology of Cereals,oils and FoodsRequires access

Determination of trans fatty acids in edible vegetable oil by GC—MS

Qingling Zhang

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Abstract

A method for the determination of trans-fatty acids in vegetable oil by GC—MS was developed.After methyl esterification,the fatty acid in vegetable oil was separated by SP—2560 column,qualified by GC—MS with Scan monitoring,determined by area normalization.The method has been successfully applied in determination of trans-fatty acids in 6 vegetable oils.The method was simple in pre-process,rapid,without standard sample.The RSD was within 8.5%,the recovery 91.5%～98.5%.It can be applied in the lab.

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What this paper is about

A method for the determination of trans-fatty acids in vegetable oil by GC—MS was developed.After methyl esterification,the fatty acid in vegetable oil was separated by SP—2560 column,qualified by GC—MS with Scan monitoring,determined by area normalization.The method has been successfully applied in determination of trans-fatty acids in 6 vegetable oils.The method was simple in pre-process,rapid,without standard sample.The RSD was within 8.5%,the recovery 91.5%～98.5%.It can be applied in the lab.

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Available abstract

A method for the determination of trans-fatty acids in vegetable oil by GC—MS was developed.After methyl esterification,the fatty acid in vegetable oil was separated by SP—2560 column,qualified by GC—MS with Scan monitoring,determined by area normalization.The method has been successfully applied in determination of trans-fatty acids in 6 vegetable oils.The method was simple in pre-process,rapid,without standard sample.The RSD was within 8.5%,the recovery 91.5%～98.5%.It can be applied in the lab.

Key concepts: Chromatography, Vegetable oil, Chemistry, Gas chromatography–mass spectrometry, Fatty acid, Normalization (sociology), Food science, Organic chemistry

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