| 原子吸收法测定废水中的铬（Ⅵ） |
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| 引用本文： | 王志超.原子吸收法测定废水中的铬（Ⅵ）[J].干旱环境监测,1992,6(4):209-210. |
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| 作者姓名： | 王志超 |
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| 作者单位： | 天津市东丽区环保监测站 |
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| 摘 要： | 在pH<1的溶液中,用甲基异丁酮(MIBK)与磷酸三丁酯(TBP)混合作为萃取剂,萃取废水中的铬时,六价铬的分配比为108.6,而三价铬几乎不被萃取。用原子吸收分光光度计测定有机相中的六价铬具有很好的选择性,且干扰少,灵敏度高。工作曲线的最佳浓度范围是:0.04～4.00mg/L。
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| 关 键 词： | 铬 原子吸收 分光光度法 废水 |
DETERMINATION OF Cr~(6+)IN WASTE WATER BY ATOMIC ABSORPTION SPECTROPHOTOMETRY |
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| Wang Zhichao.DETERMINATION OF Cr~(6+)IN WASTE WATER BY ATOMIC ABSORPTION SPECTROPHOTOMETRY[J].Arid Environmental Monitoring,1992,6(4):209-210. |
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| Authors: | Wang Zhichao |
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| Abstract: | The distributive proportion of Cr^was 108.6 meanwhile Cr3+was hardly extracted when chromium in waste water was extracted by the mixing solvent extrations of MIBK and TBP on condition that PH was less than 1.0. Determined by AAS, Cr6+in organic phase had a much good selectivity as well as light disturbance and high sensitivity. The optimum concentration rang of analysis curve was 0.04-4.00mg/l. |
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| Keywords: | Cr~(6+) Cr~(3+) MIBK TBP AAS Waste water |
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