| 石墨炉原子吸收法测定硝酸银中的痕量金 |
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| 引用本文： | 吴学汉,陆思华,彭云,崔光晨. 石墨炉原子吸收法测定硝酸银中的痕量金[J]. 影像科学与光化学, 1991, 9(3): 232-236. DOI: 10.7517/j.issn.1674-0475.1991.03.232 |
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| 作者姓名： | 吴学汉 陆思华 彭云 崔光晨 |
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| 作者单位： | 中国科学院感光化学研究所, 北京 100101 |
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| 摘 要： | 卤化银感光材料面世已有一百余年的历史,其基本原材料之一的硝酸银的纯度,对感光材料的感光特性有着不容忽视的影响。国外各著名感光材料厂家对硝酸银中杂质的含量,都有严格的内控标准。但分析方法一般不公开发表。文献上偶见到少量工作[1-3],一般也非感光材料厂家的实用技术。
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| 关 键 词： | 痕量分析 感光材料 金 硝酸银 |
| 收稿时间： | 1989-10-05 |
DETERMINATION OF TRACE GOLD IN SILVER NITRATE BY GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY |
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| WU XUE-HAN,LU SI-HUA,PENG YUN,GUI GUANG-CHEN. DETERMINATION OF TRACE GOLD IN SILVER NITRATE BY GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY[J]. Imaging Science and Photochemistry, 1991, 9(3): 232-236. DOI: 10.7517/j.issn.1674-0475.1991.03.232 |
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| Authors: | WU XUE-HAN LU SI-HUA PENG YUN GUI GUANG-CHEN |
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| Affiliation: | Institute of Photographic Chemistry, Academic Sinica, Beijing 100101, P. R. China |
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| Abstract: | Trace gold in AgNO3 was separated from main element Ag with 2 mol/L HC1 as a precipitant.After filtering, Au3+ in the solution was extracted with 6ml 55% TBP-CHCl3 and was determined by graphite furnace atomic absorption spectrometry.The method is convenient and sensitive.The recovery and relative standard deviation are 95-105% and < 15%, respectively. |
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| Keywords: | trace analysis photographic materials gold silver nitrate |
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