食品科学 ›› 2011, Vol. 32 ›› Issue (2 ): 184-186.doi: 10.7506/spkx1002-6630-201102043

• 分析检测 • 上一篇    下一篇

压力自控微波消解- 石墨炉原子吸收光谱法测定鹅肝中的镉

司文会1,李克俭1,郑丽卿2,方志成2   

  1. 1.苏州农业职业技术学院 2.苏州泰事达检测技术有限公司
  • 收稿日期:2010-07-04 出版日期:2011-01-25 发布日期:2011-01-10
  • 通讯作者: 司文会 E-mail:swh8614@163.com
  • 基金资助:

    江苏省高校“青蓝工程”中青年学术带头人项目(Sponsored by Qing Lan Project)

Microwave Airtight Digestion and Atomic Absorption Spectrophotometric Analysis of Cadmium in Goose Liver

SI Wen-hui,LI Ke-jian,ZHENG Li-qing,FANG Zhi-cheng   

  1. 1. Suzhou Polytechnic Institute of Agriculture, Suzhou      215008, China;
    2. Suzhou Testar Testing Technology Co. Ltd., Suzhou      215104, China
  • Received:2010-07-04 Online:2011-01-25 Published:2011-01-10
  • Contact: SI Wen-hui E-mail:swh8614@163.com

摘要: 利用压力自控微波密闭消解- 石墨炉原子吸收光谱法测定鹅肝中镉,在固定微波输出功率600W 及阶梯升压方式加热、加压条件下,分析样与混酸充分混合,快速分解,减少了分析液引入污染的机会。方法的检出限0.36μg/mL,变异系数为3.03%,回收率为97.09%~100.86%。本方法实际样品分析,简快、准确结果满意。

关键词: 微波消解, 石墨炉原子吸收光谱法, 鹅肝,

Abstract: Goose liver was digested with mixed acids by a microwave system under a gradient pressure program at a power output of 600 W to determine the content of cadmium by an atomic absorption spectrometry method. The limit of detection was 0.36μg/mL, the precision RSD of 5 replicate determinations was 3.03%, and the spike recoveries in 5 samples were between 97.09% and 100.86%. This method may reduce the sample contamination problem effectively due to thorough exposure of samples to mixed acid for rapid digestion in an airtight environment, and is simple, convenient, quick and accurate.

Key words: microwave digestion, graphite furnace atomic absorption spectrometry, goose liver;cadmium

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