气相色谱串联质谱法测定豆干中的二甲基黄  

Determination of Dimethyl Yellow in Dried Tofu by Gas Chromatography Tandem Mass Spectrometry Method

作　　者：夏栋[1] 丁安帮[1] 施祖灝 陆利霞[1] 史昕平 熊晓辉[1] 

机构地区：[1]南京工业大学食品与轻工学院/国家轻工业食品质量监督检测南京站,江苏南京210009

出　　处：《粮油加工（电子版）》2015年第8期56-58,共3页Machinery for Cereals Oil and Food Processing Main Contents

摘　　要：豆干经过乙腈简单的超声提取,离心分离,上清液经过滤头过滤,用气相色谱串联质谱法测定豆干中的二甲基黄的含量。得到豆干中二甲基黄的加标回收率在85.5%~92.1%,精密度为1.98%,方法检出限0.1μg/kg,符合国家标准要求。本法操作简便、重现性好、灵敏度和准确度高。After acetonitrile simple ultrasonic extraction, centrifugation, supematant was filtered through a filter head; dimethyl yellow content in dried tofu was determined by gas chromatography tandem mass spectrometry method. Which provided a very high recovery （ 85.5% to 92.1% ） and good results were obtained for the limit of detection （0.1μg/kg） and for precision （1.98%） . were all in line with national standards. Method is simple, reproducible, sensitivity and accuracy.

关 键 词：气相色谱串联质谱 豆干 二甲基黄 

分 类 号：TS207.3[轻工技术与工程—食品科学]