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| Determination of Au in Geological Samples by Inductively Coupled Plasma Atomic Emission Spectrometry(ICP- AES) after Pre-concentration Using Polyurethane Foam |
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Received:June 08, 2013
Revised:August 25, 2013
Published Online:December 19, 2013
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| DOI：doi:10.3969/j.issn.2095-1035.2013.04.005 |
| KeyWord:gold; polyurethane foam; inductively coupled plasma atomic emission spectrometry |
| Author | Institution |
| SHEN Yumin |
Hebei Central Geological Laboratory, Baoding, Hebei , China |
| ZHANG Ning |
Hebei Central Geological Laboratory, Baoding, Hebei , China |
| GUO Xiuping |
Hebei Central Geological Laboratory, Baoding, Hebei , China |
| JIANG Yunjun |
Hebei Central Geological Laboratory, Baoding, Hebei , China |
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| Abstract: |
| An ICP- AES method together with a polyurethane foam pre-concentration technique was used to determine trace Au in geological materials. The geological samples were dissolved in aqua regia. After the trace gold in the solution was enriched on polyurethane foam, the content of Au was determined by ICP- AES method. The standard addition recoveries were in the range of 94.4%~111.0%, The national primary standard samples were analyzed by the method and the results were in agreement with the certified values. The RSDs were between 3.2% and 12.8%. |
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