食品科学 ›› 2019, Vol. 40 ›› Issue (2): 259-263.doi: 10.7506/spkx1002-6630-20180102-001

• 安全检测 • 上一篇    下一篇

应用ICP-MS/MS快速测定红酒中的多种微量元素

张萍,刘宏伟*   

  1. (湖南工学院材料与化学工程学院,湖南?衡阳 421002)
  • 出版日期:2019-01-25 发布日期:2019-01-22
  • 基金资助:
    国家自然科学基金面上项目(21271187);湖南省教育厅重点科研项目(14A035); 湖南省重点学科建设项目(湘教发[2011]76号)

Rapid Multi-Element Analysis of Red Wine by Inductively Coupled Plasma Tandem Mass Spectrometry

ZHANG Ping, LIU Hongwei*   

  1. (School of Materials and Chemistry Engineering, Hunan Institute of Technology, Hengyang 421002, China)
  • Online:2019-01-25 Published:2019-01-22

摘要: 建立电感耦合等离子体-串联质谱法测定红酒中多元素的分析方法。采用0.45?μm的纤维滤膜对红酒进行过滤后经硝酸酸化直接进样分析。通过优化仪器的工作参数,在串联质谱模式下,采用不同反应气通过质量转移反应消除质谱干扰,各元素的检出限在1.4~51.8?ng/L范围内,样品的加标回收率在94.0%~104.7%之间,相对标准偏差不大于4.0%。方法具有简单快速、检出限低、准确性好和精密度高的特点,适用于红酒中多元素的检测。

关键词: 红酒, 电感耦合等离子体-串联质谱, 多元素, 质谱干扰, 质量转移

Abstract: An analytical method using inductively coupled plasma tandem mass spectrometry (ICP-MS/MS) was established for determining multi-elements (Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Cd, Sn, Hg and Pb) in red wine. Samples were filtered through a 0.45 μm pore size cellulose filter, and after acidification with nitric acid, the filtrate was directly analyzed. Instrumental parameters were optimized so that elimination of inferences was achieved via mass-shift reaction of different reaction gases. The limits of detection (LOD) were in the range of 1.4–51.8 ng/L for all analytes. The recoveries for spiked samples were in the range of 94.0%–104.7%, with relative standard deviations (RSDs) no more than 4.0%. The method is simple and fast with low detection limit, good accuracy and high precision, making it suitable for the determination of multi-elements in red wine.

Key words: red wine, inductively coupled plasma tandem mass spectrometry, multi-element, mass spectral interferences, mass-shift reaction

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