食品科学 ›› 2011, Vol. 32 ›› Issue (2 ): 195-197.doi: 10.7506/spkx1002-6630-201102046

• 分析检测 • 上一篇    下一篇

微波消解- 电感耦合等离子体质谱测定香辛料中铅砷镉铬铜锰锌和镍

解 楠,葛宇,徐红斌,曹程明   

  1. 上海市质量监督检验技术研究院,国家食品质量监督检验中心(上海),上海      200233
  • 收稿日期:2010-03-12 修回日期:2010-11-18 出版日期:2011-01-25 发布日期:2011-01-10
  • 通讯作者: 解楠 E-mail:neauxienan@126.com

Determination of Lead, Arsenic, Cadmium, Chromium, Copper, Manganese, Zinc and Nickel in Spices by Inductively Coupled Plasma Mass Spectrometry with Microwave Digestion

XIE Nan,GE Yu,XU Hong-bin,CAO Cheng-ming   

  1. National Food Quality Supervision and Inspection Center (Shanghai), Shanghai Institute of Quality Inspection and Technical
    Research, Shanghai      200233, China
  • Received:2010-03-12 Revised:2010-11-18 Online:2011-01-25 Published:2011-01-10
  • Contact: XIE Nan E-mail:neauxienan@126.com

摘要: 采用微波消解前处理,电感耦合等离子体质谱法(ICP-MS)测定部分香辛料中铅、砷、镉、铬、铜、锰、锌和镍的含量。测定结果显示各元素线性范围均为0~500ng/mL,线性方程相关系数均大于0.9995,各元素检出限在0.009~0.42ng/mL 之间,相对标准偏差均小于5%,低、中、高质量浓度标准溶液加标回收率在88%~109%之间,选择的3 种标准物质GBW08521、GBW(E)080684 和GBW07605(GSV-4)的各元素测定值均在标准值范围之内,由此说明该方法能够简单、快速、灵敏、准确测定香辛料中重金属元素。

关键词: 香辛料, 重金属, 微波消解, 电感耦合等离子体质谱

Abstract: Inductively coupled plasma mass spectrometry (ICP-MS) with microwave digestion was applied to determine lead, arsenic, cadmium, chromium, copper, manganese, zinc and nickel in spices. The linear range of the developed ICP-MS method was from 0 to 500 ng/mL (r > 0.9995). The detection limits were between 0.009 ng/mL and 0.42 ng/mL. The precision of the method was evaluated with a relative standard derivation (RSD) of lower than 5%, and the average recoveries in a sample spiked at three levels were in the range of 88% to 109% (n = 11). The results of determining various elements in three standard reference materials of GBW08521, GBW(E)080684 and GBW07605 (GSV-4) were all within the ranges of standard values. This method proves good simplicity, sensitivity and accuracy in the determination of heavy metal elements in spices.

Key words: spices, heavy metal elements, microwave digestion, inductively coupled plasma mass spectrometry

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