| 第 34 卷第 1 期 |  | Vol. 34 No. 1 | | 2004 年 2 月 | Feb 2004 |
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所屬欄目：分析與測試
堿式硫酸鉻中微量Cr(6價(jià))的測定 |
| 王哲丹; 王英強(中國石化股份公司巴陵分公司; 湖南化工研究院; 湖南岳陽(yáng); 湖南長(cháng)沙) |
| 摘 要：采用磷酸三丁酯萃取分離堿式硫酸鉻中CrO2-4與Cr3+,CrO2-4被有機溶劑萃取后直接顯色,通過(guò)分光光度法進(jìn)行定量分析。方法加標回收率為97.6%～99.1%,變異系數1.9%。 |
| 關(guān)鍵詞：堿式硫酸鉻; CrO2-7; 分光光度法; 萃取分離 |
| 中圖分類(lèi)號：O657.32 文獻標識碼：A 文章編號：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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