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2011•Guangzhou Chemical IndustryRequires access

Determination of 8 Kinds of Fatty Acids in Oils

Danqing Zhang

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Abstract

A method for the determination of 8 kinds of fatty acids in oils by GC-FID was developed.Fatty acids were methylated to fatty acid methyl ethers(FAMEs) by KOH in methanol.FAMEs were quantitatively measured by DB-WAX capillary gas chromatography.The recoveries of fatty acids ranged from 91.45%~107.55% with relative standard deviations less than 8%,and the detection limits were in the range of 0.29~1.10 μg/mL.With the high accurate and low detection limits,this method could be used in many laboratory detecting.

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What this paper is about

A method for the determination of 8 kinds of fatty acids in oils by GC-FID was developed.Fatty acids were methylated to fatty acid methyl ethers(FAMEs) by KOH in methanol.FAMEs were quantitatively measured by DB-WAX capillary gas chromatography.The recoveries of fatty acids ranged from 91.45%~107.55% with relative standard deviations less than 8%,and the detection limits were in the range of 0.29~1.10 μg/mL.With the high accurate and low detection limits,this method could be used in many laboratory detecting.

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Available abstract

A method for the determination of 8 kinds of fatty acids in oils by GC-FID was developed.Fatty acids were methylated to fatty acid methyl ethers(FAMEs) by KOH in methanol.FAMEs were quantitatively measured by DB-WAX capillary gas chromatography.The recoveries of fatty acids ranged from 91.45%~107.55% with relative standard deviations less than 8%,and the detection limits were in the range of 0.29~1.10 μg/mL.With the high accurate and low detection limits,this method could be used in many laboratory detecting.

Key concepts: Chemistry, Chromatography, Gas chromatography, Methanol, Fatty acid, Detection limit, Wax, Capillary gas chromatography

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