芝麻香型白酒中5种物质成分的测定分析  

Determination of Five Substances in Zhimaxiang Baijiu

作　　者：张琴 李加涛 唐兰 朱安甫 谢家蓉 余宏 ZHANG Qin;LI Jiatao;TANG Lan;ZHU Anfu;Xie Jiarong;YU Hong(Chengdu Product Quality Inspection and Research Institute Co.Ltd.,Chengdu,Sichuan 610100;Chengdu Research Institute of Product Quality Supervision and Inspection,Chengdu,Sichuan 610100,China)

机构地区：[1]成都产品质量检验研究院有限责任公司,四川成都610100 [2]成都市产品质量监督检验研究院,四川成都610100

出　　处：《酿酒科技》2024年第9期120-123,共4页Liquor-Making Science & Technology

摘　　要：采用气相色谱法对芝麻香型白酒中甲醇、乙酸乙酯、己酸乙酯、乳酸乙酯、乙酸进行了准确定性定量分析。试验选用HP-INOWAX毛细管色谱柱和氢火焰离子化检测器(FID)进行检测,以叔戊醇、乙酸正戊酯和2-乙基丁酸为内标定量。结果表明,5种物质能够实现有效分离,在各自质量浓度范围内线性关系良好,相关系数R2均在0.999以上,检出限为0.54~1.81 mg/L,精密度试验的相对标准偏差(RSD)为0.23%~0.86%,加标回收率为92.46%~104.12%。该方法操作简单、快速,一次进样可同时检测甲醇、乙酸乙酯、己酸乙酯、乳酸乙酯和乙酸,线性范围、相关性、重复性和精密度均满足检测方法的要求,可用于芝麻香型白酒中甲醇、乙酸乙酯、己酸乙酯、乳酸乙酯和乙酸的快速检测分析。The qualitative and quantitative analysis of methanol,ethyl acetate,ethyl hexanoate,ethyl lactate and acetic acid in Zhimaxiang Baijiu was carried out by gas chromatography.HP-INOWAX capillary column and hydrogen flame ionization detector(FID)were used for detection,and tert-amyl alcohol,amyl acetate and 2-ethylbutyric acid were used as internal standards for quantitative determination.The results showed that the five substances could be effectively separated,with good linear relationship in their own concentration range,and the correlation coefficient R2 was above 0.999.The detection limit was between 0.54 mg/L and 1.81 mg/L,the relative standard deviation(RSD)was between 0.23%and 0.86%,and the spiked recovery rate was between 92.46%and 104.12%.The method is simple and fast,and can simultaneously detect the five substances.The linear range,correlation,repeatability and precision all meet the requirements of the detection method.The method can be used for the rapid detection and analysis of methanol,thyl acetate,ethyl hexanoate,ethyl lactate and acetic acid in Zhimaxiang Baijiu.

关 键 词：气相色谱 风味物质 芝麻香型白酒 检测 

分 类 号：TS262.3[轻工技术与工程—发酵工程] TS261.7[轻工技术与工程—食品科学与工程]