| 聚氨酯泡沫塑料富集——ICP-MS测定化探样中微量金的方法 |
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| 引用本文： | 李锟.聚氨酯泡沫塑料富集——ICP-MS测定化探样中微量金的方法[J].化工矿产地质,2007,29(4). |
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| 作者姓名： | 李锟 |
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| 作者单位： | 中化地质矿山总局中心实验室,河北涿州,072754 |
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| 摘 要： | 试样经王水分解,在10%的王水溶液介质中,加一定量的铁盐,用聚氨酯泡沫塑料吸附富集金,1%硫脲溶液解脱,ICP-MS进行测定。实验结果表明,这种方法精密度高、准确度好,检出限低。其测定范围为0.028～500ng/g。
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| 关 键 词： | 王水分解 泡塑富集 硫脲解脱 ICP-MS测定 |
ENRICHMENT OF POLYAMINOESTER FOAMED PLASTICS——MEASURE TO DETERMINE THE TRACE AU BY ICP-MS |
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| Li kun.ENRICHMENT OF POLYAMINOESTER FOAMED PLASTICS——MEASURE TO DETERMINE THE TRACE AU BY ICP-MS[J].Geology of Chemical Minerals,2007,29(4). |
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| Authors: | Li kun |
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| Abstract: | The samples are decomposed by aqua regia,that is,adding some molysite in 10% aqua regia solution,the Au in the samples will be absorbed by the polyaminoester foamed plastics. Then it is disembarrassed by 1% thiourea solution and determined by ICP-MS. It has been found that the determination has higher precision,better accuracy and lower detection limit,the measurement range 0.028～500ng/g. |
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| Keywords: | decomposed by aqua regia Enrichment of the foamed plastics disembarrassed by thiourea determined by ICP-MS |
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