生牛乳中1,2-丙二醇检测方法研究  

Detection Method of 1,2-Propanediol in Raw Cow Milk

作　　者：杨希国 杨慧杰 闵国春 陈冰冰 陈玉艳 YANG Xiguo;YANG Hujie;MIN Guochun;CHEN Bingbing;CHEN Yuyan(Liaoning General Fair Testing Co.,Ltd.,Shenyang 110026,China;Liaoning Inspection,Examination&Certification Centre,Shenyang 110036,China;Liaoning Grain Inspection and Testing Center,Shenyang 110032,China)

机构地区：[1]辽宁通正检测有限公司,辽宁沈阳110026 [2]辽宁省检验检测认证中心,辽宁沈阳110036 [3]辽宁省粮食检验检测中心,辽宁沈阳110032

出　　处：《品牌与标准化》2023年第2期84-86,共3页

摘　　要：参考GB 5009.251—2016建立气相色谱法检测生牛乳中1,2-丙二醇的分析方法。试样中1,2-丙二醇用无水乙醇提取,经HP-FFAP毛细管柱分离测定。结果表明:在1.00~50.00μg/mL时线性关系良好,检出限为0.01 g/kg,定量限为0.03 g/kg。添加水平在0.03~0.50 g/kg时,回收率在90.40%~107.33%之间,变异系数RSD在4.00%~6.96%之间,能够满足实验室检测的要求。A method for the determination of 1,2-Propanediol in raw cow milk by gas chromatography was developed reference to GB 5009.2512016.Anhydrous ethanol was used as extraction agent,1,2-Propanediol was separated by HP-FFAP capillary column.The results showed that the linearity was good in the range of 1.00~50.0μg/mL,the detection limit was 0.01 g/kg,and the quantitative limit was 0.03 g/kg.When the addition level was 0.03~0.50 g/kg,the recovery rate was 90.40%~107.33%,and RSD was 4.00%~6.96%.The method can meet the laboratory requirement.

关 键 词：生牛乳 1 2-丙二醇 气相色谱法 

分 类 号：TS252.7[轻工技术与工程—农产品加工及贮藏工程] O657.71[轻工技术与工程—食品科学与工程]