食品科学 ›› 2012, Vol. 33 ›› Issue (24): 296-298.doi: 10.7506/spkx1002-6630-201224064

• 分析检测 • 上一篇    下一篇

微波消解-电感耦合等离子发射光谱测定鸡肉中9种元素

张洁1,陈玎玎2,*,祁克宗1,徐艳秋1   

  1. 1.安徽农业大学茶与食品科技学院,安徽 合肥 230036;2.安徽农业大学生物技术中心,安徽 合肥 230036
  • 收稿日期:2011-12-20 修回日期:2012-11-28 出版日期:2012-12-25 发布日期:2012-12-12
  • 通讯作者: 陈玎玎 E-mail:dingding0626@126.com

Determination of Nine Elements in Chicken by ICP-AES with Microwave Digestion

ZHANG Jie1,CHEN Ding-ding2,*,QI Ke-zong1,XU Yan-qiu1   

  1. 1. College of Tea and Food Science and Technology, Anhui Agricultural University, Hefei 230036, China;2. Biotechnology Center, Anhui Agricultural University, Hefei 230036, China
  • Received:2011-12-20 Revised:2012-11-28 Online:2012-12-25 Published:2012-12-12

摘要: 建立微波消解-电感耦合等离子发射光谱测定鸡肉中Ca、Fe、Zn、Se、Ni、Mn、Cu、Pb、As九种元素的方法。测定结果表明,此方法的检出限为0.0004~0.0069mg/L,相对标准偏差(n=3)为0.72%~4.10%,回收率为80.0%~107.1%。同时研究微波消解试剂的种类和加入量、微波消解升温程序对测定结果的影响;并且将微波消解与干灰化法、湿法消解进行比较,结果显示,经微波消解后,测得多种元素的值显著性高于干法灰化、湿法消解(P<0.05)。

关键词: 微波消解, 微波消解-电感耦合等离子发射光谱, 微量元素

Abstract: A method was established to determine calcium, ferrum, zinc, selenium, nickel, manganese, copper, lead and arsenic in chicken using microwave digestion followed by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The limit of detection of this method was 0.4–6.9 ng/mL, and the precision (RSD) for three replicate determinations ranged from 0.72% to 4.10%. Average recoveries of 9 elements in chicken reference material and commercial chicken varied from 80.0% and 107.1%. The effects of digestion agent type and dosage and programmed heating on results of determination were investigated. Significantly higher results of determination were obtained with microwave digestion when compared with dry ashing and wet digestion (P<0.05).

Key words: microwave digestion, ICP-AES, trace elements

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