| 四元螯环配合物氨荒酸盐法同时测定银和铜 |
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| 引用本文： | 朱洪涛,张晓敏,左本成.四元螯环配合物氨荒酸盐法同时测定银和铜[J].河北大学学报(自然科学版),1996(2). |
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| 作者姓名： | 朱洪涛 张晓敏 左本成 |
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| 作者单位： | 华北电力大学，唐山环保监测站 |
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| 摘 要： | 利用二乙氨基二硫代甲酸盐萃取光度法，同时测定了铜和银，根据四元螯环稳定顺序置换反应，使方法具有非常好的选择性；配合富集技术的应用，提高了方法的灵敏度，最低检测浓度为５．２×１０￣（－６）ｇ／Ｌ的铜和４．８×１０￣（－６）ｇ／Ｌ银。
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| 关 键 词： | 铜 银 萃取光度 氨荒酸盐 |
Simultaneous Determination of Cu and Ag with Diethyldithiocarbamate |
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| Zhu Honglao, Zhang Xiaomin, Zuo Bengcheng.Simultaneous Determination of Cu and Ag with Diethyldithiocarbamate[J].Journal of Hebei University (Natural Science Edition),1996(2). |
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| Authors: | Zhu Honglao Zhang Xiaomin Zuo Bengcheng |
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| Abstract: | Determination of copper and silver in waste water was investigated using stable sulfru-coordinated four-membered ring chelates formed by chelation of Cu(2+) and Ag+ with diethyldithiocarbamate as detection compounds. Spectrophotometric determinations were carried out after extractive separation of Cu(2+) and Ag+ chelates with CHCl3. This method is simple and highly selective and can be further improved by enrichment technique. The lowest detection concentrations for Cu(2+) and Ag+ are 5.2 × 10(-6)g / L, 4.8 × 10(-6)g/L respectively. |
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| Keywords: | Copper Silver Diethyldithiocarbamate Extraction photometric analysis |
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