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Gold Science and Technology ›› 2013, Vol. 21 ›› Issue (2): 45-50.

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Testing Trace Gold by Foamed Plastic Collecting-Graphite Furnace Atomic Absorption Spectrometer

LIU Ling,WANG Quanhong   

  1. No.5 Gold Geological Party of CAPF, Xi’an   710100,Shaanxi,China
  • Received:2013-01-10 Revised:2013-02-04 Online:2013-04-28 Published:2013-09-17

Abstract:

Optimum conditions of testing trace gold are reported and studied many in domestic and international literatures.The optimum conditions for determination are diverse due to the particularity of geologic samples and the complexity of analysis trace gold.For researching into the optimum conditions, the control factors such as temperature, concentration and time in testing trace gold which be absorbed and collected by foamed plastic and eluted with thiourea by graphite furnace atomic absorption spectrometer are studied.Through the experimental study,the best solution of determination is obtained.The method has been applied to the national assay standard and 15 000 geochemical samples, and results of application in practical work conforming standard requirement. The method is applicable to the determination of trace gold.

Key words: Foamed plastic collected, Graphite furnace atomic absorption, Geologic samples, Trace gold, Test

CLC Number: 

  • O657.31

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