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Determination of Methyl Esters of Fatty Acids in Peanut Oil by Capillary Column-Gas Chromatography

Jinbiao Li

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Abstract

Capillary column gas chromatography was proposed for the determination of methyl esters of fatty acids in this paper.The capillary column HP-INNOWAX(1 μm,30 m×0.53 mm,polyethylene glycol) and FID detector were used in this work.Temperature conditions were selected as follows: for injector inlet 250 ℃,for column 220 ℃ and for detector 280 ℃.Flow rate of carrier gas nitrogen was 128 mL·min-1.Qualitative analysis was based on the retention time and the normalized peak area was used for quantitative analysis.The proposed method was applied to the determination of 7 methyl esters of fatty acids in standard sample of peanut oil,giving results in consistency with the standard values,and values of RSD′s obtained were in the range from 0.1% to 5.6%.

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What this paper is about

Capillary column gas chromatography was proposed for the determination of methyl esters of fatty acids in this paper.The capillary column HP-INNOWAX(1 μm,30 m×0.53 mm,polyethylene glycol) and FID detector were used in this work.Temperature conditions were selected as follows: for injector inlet 250 ℃,for column 220 ℃ and for detector 280 ℃.Flow rate of carrier gas nitrogen was 128 mL·min-1.Qualitative analysis was based on the retention time and the normalized peak area was used for quantitative analysis.The proposed method was applied to the determination of 7 methyl esters of fatty acids in standard sample of peanut oil,giving results in consistency with the standard values,and values of RSD′s obtained were in the range from 0.1% to 5.6%.

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Available abstract

Capillary column gas chromatography was proposed for the determination of methyl esters of fatty acids in this paper.The capillary column HP-INNOWAX(1 μm,30 m×0.53 mm,polyethylene glycol) and FID detector were used in this work.Temperature conditions were selected as follows: for injector inlet 250 ℃,for column 220 ℃ and for detector 280 ℃.Flow rate of carrier gas nitrogen was 128 mL·min-1.Qualitative analysis was based on the retention time and the normalized peak area was used for quantitative analysis.The proposed method was applied to the determination of 7 methyl esters of fatty acids in standard sample of peanut oil,giving results in consistency with the standard values,and values of RSD′s obtained were in the range from 0.1% to 5.6%.

Key concepts: Chromatography, Chemistry, Gas chromatography, Injector, Capillary action, Volumetric flow rate, Chromatography detector, Nitrogen

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Determination of Methyl Esters of Fatty Acids in Peanut Oil by Capillary Column-Gas Chromatography — Research Paper | ScholarLens