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Direct determination of trace impurities in high purity zinc oxide by high resolution inductively coupled plasma mass spectrometry

  • Xie Hualin
  • Nie Xidu
  • Li Libo
  • Song Chuhua
Article

Abstract

The determination of trace impurities in high purity zinc oxide by high resolution inductively coupled plasma mass spectrometry (HR-ICP-MS) was investigated. To overcome some potentially problematic spectral interference, measurements were acquired in both middle and high resolution modes. The matrix effects due to the presence of excess HCl and zinc were evaluated. The optimum conditions for the determination were tested and discussed. The standard addition method was employed for quantitative analysis. The detection limits ranged from 0.02μg/g to 6 μg/g depending on the elements. The experimental results for the determination of Na, Mg, Ca, Cr, Mn, Fe, Co, Ni, Cu, Mo, Cd, Sb and Pb in several high purity zinc oxide powders were presented.

Key words

high purity zinc oxide trace impurities high resolution inductively coupled plasma mass spectrometry spectral interferences microwave digestion 

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Copyright information

© Editorial Office of Journal of Wuhan University of Technology-Materials Science Edition 2005

Authors and Affiliations

  1. 1.Department of ChemistryHunan Institute of TechnologyHengyangChina
  2. 2.College of Chemistry and Chemical EngineeringCentral South UniversityChangshaChina

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