食品科学 ›› 2013, Vol. 34 ›› Issue (22): 257-260.doi: 10.7506/spkx1002-6630-201322051

• 分析检测 • 上一篇    下一篇

电感耦合等离子体质谱法检测白酒中28种元素

张 建,田志强,卢垣宇,陈兴林,孙宗奇   

  1. 贵州省产品质量监督检验院,国家酒类及饮料质量监督检验中心,贵州 贵阳 550004
  • 收稿日期:2013-01-22 修回日期:2013-10-29 出版日期:2013-11-25 发布日期:2013-12-05
  • 通讯作者: 张建 E-mail:6630495@qq.com
  • 基金资助:

    贵州省科学技术厅社会攻关计划;2011年贵州省地方标准制修订项目计划

Application of Inductively Coupled Plasma Mass Spectrometry (ICP-MS) for Determination of 28 Trace Elements in Chinese Liquor

ZHANG Jian,TIAN Zhi-qiang,LU Yuan-yu,CHEN Xing-lin,SUN Zong-qi   

  1. China National Center for Alcoholic Beverage and Soft Drink Quality Supervision and Inspection,Institution of Supervision and Inspection Product Quality of Guizhou Province, Guiyang 550004, China
  • Received:2013-01-22 Revised:2013-10-29 Online:2013-11-25 Published:2013-12-05

摘要:

建立白酒中微量元素的分析方法。采用10mL混酸(硝酸-高氯酸(4:1,v/v))作为消解液消解白酒样品,电感耦合等离子体质谱法(ICP-MS)检测白酒中Ag、Cd、Cs、Ba、Li、Be、Na、Mg、Al、K、Ca、V、Cr、Mn、Fe、Co、Ni、Cu、Zn、Ga、As、Se、Tl、Pb、Bi、U、Rb和Sr 28种元素。结果表明,该方法具有前处理操作简单,分析速度快(1min内检测28种元素)、动态线性范围宽(21种元素线性范围为0~300μg/L,7种元素线性范围为0~30mg/L)、精密度高、准确度好、检出限低等特点,且各元素的回收率均在85.19%~104.01%之间,所有RSD小于4.7%。本实验建立的方法完全可以满足白酒中28种元素的分析要求。

关键词: 电感耦合等离子体质谱法, 白酒, 塑化剂, 不锈钢制品, 28种元素

Abstract:

This paper describes a simple method for the determination of 28 micro-elements including Ag, Cd, Cs, Ba, Li, Be,
Na, Mg, Al, K, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, As, Se, Tl, Pb, Bi, U, Rb, and Sr in Chinese liquor by using inductively
coupled plasma mass spectrometry (ICP-MS). For digestion of samples, 10 mL of a mixture of HNO3 with HClO4 (4:1, V/V) was
used. The results revealed that the method had some advantages, such as simple sample pretreatment, fast analysis, low detection
limit, high precision and accuracy, and wide linear dynamic range (0–300 μg/L for 21 of these micro-elements, 0–30 μg/L for the
rest). The recovery rates for all the micro-elements were between 85.19% and 104.01% with RSD less than 4.7%. This method can
completely meet the requirements for determination of the 28 micro-elements in Chinese liquor.

Key words: inductively coupled plasma mass spectrometry (ICP-MS), Chinese liquor, plasticizer, stainless steel products, 28 elements

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