| 粗铅副产物中微量银的测定 |
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| 引用本文： | 阮美云.粗铅副产物中微量银的测定[J].冶金分析,2001,21(3):1-1. |
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| 作者姓名： | 阮美云 |
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| 作者单位： | 龙岩市产品质量监督检验所!福建龙岩364000 |
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| 摘 要： | 稀硝酸溶样后用 0.1mol/L硝酸定量稀释到一定浓度 ,以EDTA作掩蔽剂 ,控制溶液 pH4.7,以二苯硫腙的四氯化碳溶液萃取分光光度法间接测定粗铅中银的含量 ,可测定约 0 .3 %含银量 ,操作快速 ,便于推广
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| 关 键 词： | 银 二苯硫腙 分光光度法 |
| 文章编号： | 1000－7571（2001）03－0058-02 |
| 修稿时间： | 1999年11月8日 |
Determination of micro silver in rough lead by-product |
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| RUAN Mei,yun.Determination of micro silver in rough lead by-product[J].Metallurgical Analysis,2001,21(3):1-1. |
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| Authors: | RUAN Mei yun |
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| Abstract: | The sample was dissolved by dilute HNO 3 and its solution was quantitatively diluted to a certain concentration. In the solution at pH 4.7, EDTA as a masking agent, silver was indirectly determined by extraction spectrophotometry with dithizone CCl 4. The method was used to determine silver (about 0.3%). The operation was quick and easy to spread. |
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| Keywords: | silver dithizone spectrophotometry |
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