| 电镀废水中微量铜的光度法测定 |
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| 引用本文： | 黄念东,夏畅斌,何湘柱.电镀废水中微量铜的光度法测定[J].光谱学与光谱分析,2001,21(4):529-530. |
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| 作者姓名： | 黄念东 夏畅斌 何湘柱 |
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| 作者单位： | 湘潭工学院环境工程与化工新技术研究所, |
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| 基金项目： | 湖南省科技攻关项目 (0 1 0 962 54)子课题 |
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| 摘 要： | 在表面活性剂CPB和乳化剂OP存在下 ,利用二溴羟基苯基荧光酮 (DBH PF)与铜 (Ⅱ )显色反应 ,建立了测定微量Cu(Ⅱ )的光度法。实验结果表明 ,在pH =5 4的六次甲基四胺 盐酸缓冲溶液中 ,DBH PF与Cu(Ⅱ )生成紫红色的络合物 ,最大吸收波长为 5 40nm ,表观摩尔吸光系数为 1 8× 10 5,Cu(Ⅱ )的质量浓度在 0 0～ 9 0 μg·2 5mL-1范围内符合比耳定律。结合N53 0 N510 混合萃取分离可准确测定电镀废水中微量铜。
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| 关 键 词： | 分光光度法 二溴羟基苯基荧光酮 铜 电镀废水 微量分析 测定 |
| 修稿时间： | 1999年8月24日 |
Spectrophotometric Determination of Trace Copper in Electroplating Wastewater |
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| N Huang,C Xia,X He.Spectrophotometric Determination of Trace Copper in Electroplating Wastewater[J].Spectroscopy and Spectral Analysis,2001,21(4):529-530. |
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| Authors: | N Huang C Xia X He |
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| Institution: | Institute of Environmental Eng. and Chemical Hi-tech, Xiangtan Polytechnic University, 411201 Xiangtan. |
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| Abstract: | In the presence of CPB and OP, the chromogenic reaction of DBH-PF with Cu(II) was studied. The results show that the purple micelle reaction has high sensitivity in the medium of (CH2)6N4-HCl(pH = 5.4) buffered solution, the molar absorptivity is 1.8 x 10(5) L.mol-1.cm-1, and Beer's law is obeyed for Cu(II) in the range of 0.0-9.0 micrograms.25 mL-1 at 540 nm. Combined with solvent extraction separation, the method has been applied to the determination of trace Cu in electroplating wastewater with satisfactory results. |
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| Keywords: | Spectrophotometry DBH PF Copper Electroplating wastewater |
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