食品科学 ›› 2003, Vol. 24 ›› Issue (11): 112-115.

• 分析检测 • 上一篇    下一篇

ICP-MS法同时测定食品中9种人体必需微量过渡元素

 刘江晖, 周华   

  1. 广州出入境检验疫局
  • 出版日期:2003-11-15 发布日期:2011-12-13

Study on Simultaneous Determine 9 Trace Necessary Transi-tional Elements for Human Food by ICP-MS

 LIU  Jiang-Hui, ZHOU  Hua   

  1. Food Inspection Laboralory of Guangzhou Entry-exit Inspection & Quarantine Bureau of China
  • Online:2003-11-15 Published:2011-12-13

摘要: 本文叙述应用ICP-MS法同时测定食品中9种人体必需微量过渡元素(V、Cr、Mn、Fe、Co、Ni、Cu、Zn和Mo)的测定方法。采用以Rh作内标的外部校正形式。用微波消解样品。对照分析了参考标准物质。对于所有元素,校正曲线的相关系数为0.9990,回收率范围为90.2%~106%,相对标准偏差0.4%~4.4%(n=11)。

关键词: 食品, 过渡元素, 电感耦合等离子体质谱

Abstract: Inductively coupled plasma mass spectrometry was employed to simultaneous detertmine 9 trace necessarytransitional elements(V、Cr、Mn、Fe、Co、Ni、Cu、Zn and Mo)for human in foods. Calibration with rhodium asthe internal standard was used .The samples were digested using a microwave oven. The results of the analysis of reference materialwere compared with certfied values.For all analyte elements,the correlation coefficient of the calibration curves was 0.9990,therecoveries in the 90.2%~106% range,the relative standard in the 0.4%~4.4% range.

Key words: food, transitional elements, ICP-MS