| 微分脉冲阳极溶出伏安法测定铝土矿中镓 |
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| 引用本文： | 牟兰 张长庚. 微分脉冲阳极溶出伏安法测定铝土矿中镓[J]. 贵州科学, 1996, 14(3): 37-40 |
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| 作者姓名： | 牟兰 张长庚 |
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| 作者单位： | 贵州大学化学系 贵阳550025 |
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| 摘 要： | 在ＰＨ３的盐酸介质中，Ｇａ与邻苯二酚形成络合物。用微分脉冲阳极溶出伏安法测定，在－０．６９伏特出现阳极溶出峰。在－１．５伏特下电解富集９０秒，用微分脉冲溶出伏安法测定铝土矿中向量镓。
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| 关 键 词： | 镓 铝土矿 阳极溶出伏安法 测定 |
DETERMINATION OF GALLIUM IN BAUXITE BY DIFFERENTIAL PULSE ANODIC STRIPPING VOLTAMMETRY |
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| Mou Lan,Zhang Changgeng. DETERMINATION OF GALLIUM IN BAUXITE BY DIFFERENTIAL PULSE ANODIC STRIPPING VOLTAMMETRY[J]. Guizhou Science, 1996, 14(3): 37-40 |
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| Authors: | Mou Lan Zhang Changgeng |
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| Abstract: | Ga(III)can be compounded with Pyrocatechol in HCL(PH 3)medium. A anodic peak of Ga was obtained at -0.69v(vs. Ag/AgCl)by differential pulse anodic stripping voltammetry in the medium. Using the method determined trace Ga in bauxite under conditions that electrodeposition potential was -1.5 volt, and the electrodeposition time 90s. The method has been applied successfully to the determination of bauxite standard samples, data indicate that method's accuracy is better, and the detection limit is 0.1 ug/ml. |
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| Keywords: | Gallium Bauxite Differential pulse anodic stripping vohammetry |
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