气相色谱-质谱联用法测定植物油料中角鲨烯的含量及方法比较
文献类型: 中文期刊
作者: 吕春玲;陈小媚;王秀嫔;李培武;张奇;张文
作者机构:
关键词: 气相色谱质谱联用法;角鲨烯;植物油料;外标法
期刊名称:食品工业科技
ISSN: 1002-0306
年卷期: 2021 年 42.0 卷 2.0 期
页码:
收录情况: 北大核心(2020版) ; 农林核心(2020版) ; 科技核心(2020版)
摘要: 建立气相色谱-质谱联用法(Gas chromatography mass spectrometry,GC-MS/MS)分离和测定植物油料中角鲨烯的方法.用氢氧化钾-乙醇溶液超声皂化后,正己烷溶液萃取,氮吹浓缩,正己烷溶解,提取物经HP-5MS柱分离后进入质谱仪检测,外标法定量.该方法在角鲨烯浓度0.1~100.0 mg/L的范围内具有良好的线性关系(r =0.9998),方法的精密度良好RSD为1.00%~3.35%,加标回收率为83.60%~110.44%,平均加标回收率为98.89%,方法的检出限(RSN=3)为0.10 mg/L.通过气相色谱质谱联用与气相色谱对四类实际油料样品的分析表明,气相色谱质谱联用方法具高效快速、操作简单、污染小以及检测灵敏度高等优点,可以满足植物油料中角鲨烯的快速、高通量检测.
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