食品科学

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气相色谱-质谱联用法检测香菇中香菇素的含量

周佳欣,白 冰,周昌艳*,邵 毅   

  1. 上海市农业科学院农产品质量标准与检测技术研究所,上海 201403
  • 出版日期:2015-03-25 发布日期:2015-03-17
  • 通讯作者: 周昌艳
  • 基金资助:

    2014年国家食用菌质量安全风险评估项目(GJFP2014005);
    上海市市级农口系统青年人才成长计划课题(沪农青字(2014)第1-7号)

Determination of 1,2,3,5,6-Pentathiepane in Lentinula edodes by Gas Chromatography-Mass Spectrometry

ZHOU Jiaxin, BAI Bing, ZHOU Changyan*, SHAO Yi   

  1. Institute for Agri-Food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
  • Online:2015-03-25 Published:2015-03-17
  • Contact: ZHOU Changyan

摘要:

建立测定香菇中香菇素的气相色谱-质谱联用检测方法。以乙腈提取样品,Florisil柱净化,使用气相色谱-质谱仪以选择离子监测模式进行分析测定。在设定色谱条件下,香菇素在1.0~20.0 mg/mL范围内线性良好;添加10.0、20.0、30.0 mg/kg香菇素溶液的平均回收率在86.61%~98.48%之间,相对标准偏差在2.92%~4.28%之间,检出限为0.10 mg/kg,定量限为0.25 mg/kg。本方法操作方便、重复性良好,为香菇中香菇素的定性和定量检测提供可靠的分析方法。

关键词: 固相萃取, 气相色谱-质谱法, 香菇素

Abstract:

A simple and rapid method was developed for determining 1,2,3,5,6-pentathiepane in Lentinula edodes by gas
chromatography-mass spectrometry (GC-MS). Samples were extracted by acetonitrile, purified by solid-phase florisil column
and detected by GC-MS under selective ion monitoring mode. Good linear correlation was obtained within the concentration
range of 1,2,3,5,6-pentathiepane between 1.0 and 20.0 μg/mL, under the chromatographic conditions used in this study.
The average recovery rates of 1,2,3,5,6-pentathiepane at spiked concentrations of 10.0, 20.0 and 30.0 mg/kg were between
86.61% and 98.48%, with relative standard deviation of 2.92%?4.28%. The detection limit and quantification limit were 0.10
and 0.25 mg/kg, respectively. This method has the advantages of convenient operation and good reproducibility, which is
suitable for determining 1,2,3,5,6-pentathiepane in Lentinula edodes.

Key words: solid-phase extraction, gas chromatography-mass spectrometry (GC-MS), 1,2,3,5,6-pentathiepane

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