| 离子浮选-分光光度法测定水中痕量镉 |
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| 引用本文： | 方宇翘,王雪飞,邓慧红,周 晴.离子浮选-分光光度法测定水中痕量镉[J].环境科学研究,1992,5(3):49-53. |
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| 作者姓名： | 方宇翘 王雪飞 邓慧红 周 晴 |
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| 作者单位： | 上海工业大学化学化工系 上海 200072; |
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| 摘 要： | 依据离子浮选分离法的摹本原理,提出了用分光光度法测定水中痕量镉的方法。用聚氧化乙烯(23)月桂醚作镉离子的捕收剂,快速而选择性地富集于气液界面,在最佳的体系条件下,取水样1L,检测限可低至0.03μg,相对标准偏差为10.2%,标准加入回收率达90%~110%,分析一次样品仅需40min。
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| 关 键 词： | 离子浮选 分光光度法 镉水 |
| 收稿时间： | 1991/9/27 0:00:00 |
Determination of Trace Cadmium in Water by Ionic Flotation-Spectrometry |
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| Fang-Yuqiao,wang-xuefie,den-hiuhong and zhou qing.Determination of Trace Cadmium in Water by Ionic Flotation-Spectrometry[J].Research of Environmental Sciences,1992,5(3):49-53. |
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| Authors: | Fang-Yuqiao wang-xuefie den-hiuhong and zhou qing |
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| Institution: | Department of Chemistry and Chemical Engineering, Shanghai University of Technology, Shanghai, 200072 |
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| Abstract: | Ion flotation followed by spectrophotometric determination of trace cadmium in water is reported. It's based on the formation of complex from cadmium through reaction with polyoxyethylene (23) lauryl ether as a collector. Cadmium is rapidly and selectively collected into gas-liquid interface. Under the optimum conditions established, down to 0.03ug of Cd in 1 liter of sample can be determined. The precision of the ion flotation-spectrophotornetric procedure, expressed in terms of relative standard deviation is 10.2%. The standard addition recovery of Cd was 90~110%. Analysis can be carried out in about 40 minutes. |
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| Keywords: | Ionic flotation-spectrometry Cadmium Water |
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