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

• Analysis & Detection • Previous Articles     Next Articles

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

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

CLC Number: