| 第 34 卷第 1 期 |  | Vol. 34 No. 1 | | 2004 年 2 月 | Feb 2004 |
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所属栏目：分析与测试
碱式硫酸铬中微量Cr(6价)的测定 |
| 王哲丹; 王英强(中国石化股份公司巴陵分公司; 湖南化工研究院; 湖南岳阳; 湖南长沙) |
| 摘 要：采用磷酸三丁酯萃取分离碱式硫酸铬中CrO2-4与Cr3+,CrO2-4被有机溶剂萃取后直接显色,通过分光光度法进行定量分析。方法加标回收率为97.6%～99.1%,变异系数1.9%。 |
| 关键词：碱式硫酸铬; CrO2-7; 分光光度法; 萃取分离 |
| 中图分类号：O657.32 文献标识码：A 文章编号：1009-9212(2004)01-0063-02 |
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| Determination of Micogram Amount of Chromium (6+) in Basic Chromium Sulphate by Spectrophotometry |
| WANG Zhe-dan~1; WANG Ying-qiang~2 （1.ChinaPetroleum Chemical Industry Co. Ltd. Baling Branch Co. Ltd; Yueyang 410083; China; 2.Hunan Research Institute of Chemical Industry; Changsha 410007; China） |
| Abstract：The determination of chromium(6+), which was extracted from basic chromium sulfate with tributyl phasphate (TBP), was studied. The recovery is 97.6%～99.1%, and the RSD is 1.9%. |
| Key words：basic chromium sulphate; chromium（6+）; spectrophotometry; extraction |
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收稿日期：2003-10-12
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