FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (6): 226-228.doi: 10.7506/spkx1002-6630-200906052

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Determination of Five Rare Earth Elements in Tea by Inductive Coupling Plasma-Optical Emission Spectrometry

HUO Jiang-lian1,LIU Meng-gang2,LOU Guo-zhu1   

  1. (1.Tea Quality Supervision and Examination Station of Beijing Food Research Institute, Beijing 100162, China;
    2. Beijing Representative Office, Ametek Inc., Beijing 100004, China)
  • Received:2008-05-08 Revised:2008-06-30 Online:2009-03-15 Published:2010-12-29
  • Contact: HUO Jiang-lian1 E-mail:jianglian96@163.com

Abstract:

ICP-OES was sused to establish a analysis method of five rare earth elements, such as La, Ce, Pr, Nd and Sm in tea. nder the optimum conditions, the limits of detection and the spike recoveries of the five rare earth elements at the concentration f 0.4 mg/kg and 2.0 mg/kg are excellent, which are 1.1μg/kg to 5.1μg/kg and 80.3% to 98.7% respectively. The accuracy of this ethod was evaluated using the tea standard reference material GBW10016. The determination results are in the range of certified value.

Key words: ICP-OES, ea, rare earth element

CLC Number: