Determination of seven adulterated essence components in Guogong liquor by gas chromatography
In order to establish a gas chromatography(GC)method for the determination of 7 kinds of adulterated flavor components in Guogong liquor,the extraction solvent,extraction solvent volume,sodium chloride solid addition and chromatographic column were investigated.The parameters were detected by hydrogen flame ionization detector(FID)and quantified by external standard.Results showed that the optimal determination conditions were using 10 ml ethyl acetate as the extraction solvent,adding 3 g sodium chloride,separating with InertCap 624 capillary column(30 m×0.25 mm× 0.25 μm)with a split ratio of 5∶1,the 7 essence components could be completely separated,with good linear relationship,and R2 were all greater than 0.999.In the range of 1.0-10 mg/L,the adding standard recovery was between 82.0％and 98.1％,and the relative standard deviation(RSD)of precision tests results were all below 10％.The method was simple,rapid and accurate,and could be used to detect 7 essence ingredients in Guogong liquor.
gas chromatographyGuogong liquoradulterationessencedetermination
万方数据
维普
