| 非离子型微乳液对砷的浊度法测定的增稳作用 |
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| 引用本文： | 高嵩,凤颀,周群. 非离子型微乳液对砷的浊度法测定的增稳作用[J]. 有色矿冶, 2003, 19(3): 50-51 |
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| 作者姓名： | 高嵩 凤颀 周群 |
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| 作者单位： | 沈阳化工学院,应用化学系,辽宁,沈阳,110142 |
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| 摘 要： | 研究了以微乳液为介质，浊度法测定砷的试验条件，以非离子型乳化剂OP／正庚烷／正丁醇／水四组分配制的微乳液为介质，使还原的单体砷在体系中以小颗粒形式均匀分布，并被隔离在不同的油核中，限制了单体砷之间的相互作用并控制了粒子的生长，从而可获得小而均匀不易凝聚的颗粒，显著提高体系的稳定性，本法以碘化钾为催化剂，氮化亚锡为还原剂在室温下进行反应，选择420nm为测定波长。试验表明：As(Ⅲ)含量在0—0．7mg／50mL范围内呈线性关系，体系稳定时间可达90min。
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| 关 键 词： | 微乳液 浊度法 砷 |
| 文章编号： | 1007-967X(2003)03-0050-02 |
| 修稿时间： | 2003-01-25 |
Determination of Arsenic in Nonionic Microemulsoid Medium by Turbidimetrv |
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| GAO Song,FENG Qi,ZHOU Qun. Determination of Arsenic in Nonionic Microemulsoid Medium by Turbidimetrv[J]. Non-Ferrous Mining and Metallurgy, 2003, 19(3): 50-51 |
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| Authors: | GAO Song FENG Qi ZHOU Qun |
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| Abstract: | The experimental condition was studied for the determination of arsenic ion in microemulsoid medium by nephelometery, OP/n-C 4H 9OH/n-C 7H 16 /H 2O, the nonionic microemulsoid was used as a medium to disperse the arsenic, to improve greatly the analytical condition. The selected wavelength is 420 nm. The liner range of the concentration is from 0 to 0.7 mg/50 mL. The method has been used to determine arsenic in since alloy with satisfactory results. |
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