| 电镀三价铬镀液中Cr~(6+)的直接测定 |
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| 引用本文： | 臧海梅,屠振密,毕四富,程谨宁,孙化松.电镀三价铬镀液中Cr~(6+)的直接测定[J].电镀与环保,2009,29(2). |
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| 作者姓名： | 臧海梅 屠振密 毕四富 程谨宁 孙化松 |
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| 作者单位： | 哈尔滨工业大学,威海,应用化学系,山东,威海,264209 |
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| 摘 要： | 研究了三价铬镀铬液中Cr6+的测定方法.采用二苯基碳酰二肼为显色剂,对甲苯磺酸为辅助显色剂,异戊醇为萃取剂,吸收波长为540 nm,在5 mm光池中直接测量了三价铬镀液中Cr6+.操作比较简单,不需要稀释,对三价铬电镀的维护具有重要意义.
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| 关 键 词： | 三价铬电镀 六价铬 光度分析法 线性拟合 |
Direct Determination of Hexavalent Chromium in Trivalent Chromium Plating Bath |
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| ZANG Hai-mei,TU Zhen-mi,BI Si-fu,CHENG Jin-ning,SUN Hua-song.Direct Determination of Hexavalent Chromium in Trivalent Chromium Plating Bath[J].Electroplating & Pollution Control,2009,29(2). |
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| Authors: | ZANG Hai-mei TU Zhen-mi BI Si-fu CHENG Jin-ning SUN Hua-song |
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| Affiliation: | Department of Applied Chemistry;Harbin Institute of Technology in Weihai;Weihai 264209;China |
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| Abstract: | The method for determining hexavalent chromium in trivalent chromium plating bath was studied. By using DPC as chromogenic agent,toluene-sulfonic acid as auxiliary chromogenic agent and isoamylol as extractant,and by adopting a wave length of 540 nm,the content of hexavalent chromium in trivalent chromium plating bath was directly determined in a 5 mm photo cell. The method is easy to operate with no need of dilution,that is significant for the maintenance of trivalent chromium plating. |
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| Keywords: | trivalent chromium plating hexavalent chromium spectro-photometry linear fitting |
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