| 分光光度法同时测定砷和锑 |
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| 引用本文： | 邱孙青 汪炳武. 分光光度法同时测定砷和锑[J]. 应用化学, 1989, 6(4): 84-86 |
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| 作者姓名： | 邱孙青 汪炳武 |
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| 作者单位： | 中国科学院长春应用化学研究所(邱孙青)，中国科学院长春应用化学研究所(汪炳武) |
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| 摘 要： | 近年来,人们在微量砷和锑的光度分析中做了大量工作,但用分光光度法同时测定这两种元素的文献则少见。本文用新银盐法测定砷,同时参照Kellen等提出的在催化剂存在下,使胂(AsH_3)与Fe(Ⅲ)作用生成Fe(Ⅱ)的测定砷的方法,观察到在乙醇介质中,(月弟)(SbH_3)也能与Fe(Ⅲ)发生氧化还原反应。由于胂在(月弟)吸收液中不被吸收,因此,将两种吸收液串连后,即可同时测定砷和锑。为了解决通常遇到的样品中砷高锑
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| 关 键 词： | 砷 锑 微量分析 分光光度法 |
| 收稿时间： | 1988-06-29 |
SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF ARSENIC AND ANTIMONY |
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| Qiu Sunqing,Wang Bingwu Changchun Institute of Applied Chemistry,Academia Sinica. SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF ARSENIC AND ANTIMONY[J]. Chinese Journal of Applied Chemistry, 1989, 6(4): 84-86 |
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| Authors: | Qiu Sunqing Wang Bingwu Changchun Institute of Applied Chemistry Academia Sinica |
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| Abstract: | A simnltaneous spectrophoto metric method for Sb and As determination has been.established. SbH_3 and AsH_3, produced by addition of a KBH_4 tablet to Sb~(3 ) and As~(3 )in tartaric solution,were absorbed by a 95% alcohol solution of Fe~(3 )-1,10 phenathrolineand a mixed solution of AgNO_3, PVA and alcohol. The absorbances were measured at 400nmfor As and 510nm for Sb. Tolerance levels of various ions were given. The detection limitswere 0.09ppm (3 s) for Sb and 0.05ppm (3 s) for As. The method is simple, rapid, andsensitive. |
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| Keywords: | Arsenic Antimony Microanalysis Spectrophotometry |
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