| 聚氯酯泡沫塑料富集——ICP-MS测定化探样中微量金的方法 |
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| 引用本文： | 李锟. 聚氯酯泡沫塑料富集——ICP-MS测定化探样中微量金的方法[J]. 化工矿产地质, 2007, 29(4): 242-244 |
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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 |
| 文章编号： | 1006-5296（2007）04-0242-03 |
| 收稿时间： | 2007-07-12 |
| 修稿时间： | 2007-07-12 |
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): 242-244 |
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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 disembarrssed 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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