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Gold Science and Technology ›› 2013, Vol. 21 ›› Issue (5): 51-56.

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Research and Application of Multi-elements Determination in Geochemical Samples by Inductively Coupled Plasma-Optical Emission Spectrometry

YANG Mingrong1，MU Changxian2，YU Lili2   

  1. 1.No.5 Gold Geological Party of CAPF，Xi’an   710100，Shaanxi，China；
    2.No.6 Gold Geological Party of CAPF，Sanmenxia   472000，Henan，China
  • Received:2013-04-22 Revised:2013-06-23 Online:2013-10-28 Published:2014-04-02

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Abstract:

ICP-OES has been widely used in all kinds of sample analysis in geological laboratory，because the method has the characteristics of rapid determination，high accuracy and multi-element simultaneous determination.This work uses HNO3-HF-HClO4 digestion sample to determine the major，minor and trace elements of soil samples and stream sediment samples by ICP-OES in 5% regia solution.The accuracy and precision are improved by improving dissolving method，selecting analysis spectral line，setting background deduction locationand optimizing instrument operating parameters.Through analysis and verification of national standard substance，the measured values are consistent with the standard and the precision is less than 5%.The method is simple and rapid processing，having the advantages of less reagent consumption，wide linear range，good analysis reproducible and meet analysis requirements of regional geochemical survey samples of complex matrix composition.The method was applied to the analysis of soil and stream sediment samples of Qinghai Province and achieved remarkable results.

Key words: ICP-OES, multi-elements determination, stream sediments, geochemical samples

CLC Number: 

  • O657.31

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