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Determination of gold in lead concentrate by polyurethane foam pre-concentration and atomic absorption spectrometry |
Received:January 26, 2015 Revised:March 16, 2015 |
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DOI: |
KeyWord:gold; polyurethane foam pre-concentration; atomic fluorescence spectrometry |
Author | Institution |
RAN Heng-xing |
汉中锌业有限责任公司化验室 |
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Abstract: |
This paper mainly studies the dissolution, enrichment separation ,adsorption enrichment conditions and desorptionanalytical condition of gold in lead concentrate, especially in the high lead. By using polyurethane foam pre-concentration and atomic absorption spectrometry, the experimental results precision is good, and the relative standard deviation of gold element determination is less than 12%, so the precision of the results meet the requirements. ultimately we achieved satisfactory results. The operation to separate gold by polyurethane foam pre-concentration is simple, with no need for special devices, which can almost completely separate the gold and is highly selective. The method accelerates the speed of analysis and reduce the cost while ensuring the quality analysis of the results. |
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