气相色谱-串联质谱法同时测定食用 油脂中3-氯丙醇酯和缩水甘油酯Simultaneous determination of 3-chloropropanol esters and glycidyl esters in edible oils by gas chromatography-mass spectrometry
旨在为减控3-氯丙醇酯(3-MCPDE)和缩水甘油酯(GEs)的污染程度和监测其含量变化奠定基础,建立了一种简便、快捷且能同时对食用油脂中3-MCPDE和GEs定性定量分析的检测方法。采用甲醇钠-甲醇溶液对样品进行碱水解反应12 min,用正己烷脱脂后,再用苯基硼酸(PBA)溶液衍生化20 min,采用乙酸乙酯提取3次,提取液氮吹至干,用少量乙酸乙酯复溶后,作为待测样液,设置质谱电离能量60 eV,进行GC-MS分析。结果表明:建立的方法的平均加标回收率为8870%~92.42%,相对标准偏差(RSD)为2.80%~6.17%,3-MCPDE和GEs分别在40~15 000 μg/kg和 2...
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| Main Author: | 刘瑶,高彤,张浩,孙尚德,陈小威LIU Yao, GAO Tong, ZHANG Hao, SUN Shangde, CHEN Xiaowei |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
中粮工科(西安)国际工程有限公司
2025-02-01
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| Series: | Zhongguo youzhi |
| Subjects: | |
| Online Access: | http://tg.chinaoils.cn/zgyz/ch/reader/create_pdf.aspx?file_no=20250215&flag=1 |
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