| 非离子型微乳液对结晶紫-硅钼杂多酸光度分析的增敏作用 |
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| 引用本文： | 张莹琪,周激,李冰. 非离子型微乳液对结晶紫-硅钼杂多酸光度分析的增敏作用[J]. 分析试验室, 2004, 23(10): 52-54 |
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| 作者姓名： | 张莹琪 周激 李冰 |
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| 作者单位： | 华北工学院分院,太原,030008;华北工学院分院,太原,030008;华北工学院分院,太原,030008 |
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| 摘 要： | 研究了非离子O W型微乳液OP n C5H11OH n C7H16 H2O对结晶紫 硅钼杂多酸显色体系的增敏作用。与相应的胶束体系比较,微乳液体系的测定灵敏度提高了30%。对钢样、水样、发样的测定结果令人满意。通过测定显色剂在微乳液及胶束体系中的分配系数、胶束位和结合常数探讨了非离子型微乳液对结晶紫 硅钼杂多酸显色体系的增敏作用机理。
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| 关 键 词： | 硅 结晶紫 光度法 微乳液 增敏 |
| 文章编号： | 1000-0720(2004)10-0052-03 |
Sensitizing effect of nonionic microemulsion on crystal violet-molybdosilicic heteropoly acid by spectrophotometry |
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| ZHANG Ying-qi,ZHOU Ji and LI Bing. Sensitizing effect of nonionic microemulsion on crystal violet-molybdosilicic heteropoly acid by spectrophotometry[J]. Chinese Journal of Analysis Laboratory, 2004, 23(10): 52-54 |
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| Authors: | ZHANG Ying-qi ZHOU Ji LI Bing |
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| Abstract: | A highly sensitive and convenient spectrophotometric method for the determination of silicon was developed. The sensitizing effect of nonionic microemulsion OP/n-C_5H_(11)OH/n-C_7H_(16)/H_2O on molar absorption coefficient of malybdosilicic heteropoly acid with crystal violet was 30% higher than that of micelle OP/H_2O. As used for the determination of silicon in steel, water and hair, the results are satisfactory. By the measurement of distribution constant K_D, the number of binding sites n and binding constant K of crystal violet, the results indicated that the solubilization capacity of crystal violet-malybdosilicic heteropoly acid in nonioic microemusion system was higher than that in micelle. |
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| Keywords: | Silicon Crystal violet Spectrophotometry Microemulsion Sensitizing effect |
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