气相色谱法测定生湿面制品中4种多元醇

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Determination of Four Alcohols in Wet Flour Products by Gas Chromatography

CHEN Wei¹，HU Binbin1*，XIE Hongbin1， YANG Shengyuan² （1.Examination Section，Hengyang Center for Disease Control and Prevention，Hengyang 4210ol， China; 2.College of Public Health， University of South China，Hengyang 421oo1， China）

Abstract： Objective： To establish a gas chromatography method for the determination of four polyols， namely1，2-propanediol，ethyleneglycol，1，3-propanedioland glycerol，inrawwet flour products.Method：Raw wet flour products were ground with sea sand， ultrasonically extracted with anhydrous ethanol，centrifugated and passed through a 0.22μm organic filter membrane， separated by an HP-INNOWAX （ （60m×0.25mm ， 0.25μm ） chromatographiccolumn，detected bya hydrogen flameionization detector，and quantifiedbythe external standard method. Result： The four polyols had a good linear relationship within the range of 0mg.L-1 to 400.0mg.L-1 with a correlation coefficient r>0.999 .The detection limit of the method was 1.8mg.kg-1 to 4.6mg⋅kg-1 ，and the quantification limit was 6.0mg⋅kg-1 to 15.0mg.kg-1 . The spiked recovery experiments were conducted at three addition levels，and the average recovery rate was 90.8% to 109.4% ，with a relative standard deviation of 0.40% to 4.89% .Conclusion： This method is simple tooperate，has highaccuracyand goodrepeatability，and is suitable for the content detection of polyol compounds in raw wet flour products.

Keywords： wet flour products; gas chromatography; ethylene glycol; propanediol; glycerol

生湿面制品是经机械或手工按照不同生产工艺加工制作成的各种形状的非即食面制品[1]，如面条、饺子皮、馄饨皮、烧麦皮等[2。（剩余5472字）