| 非离子型微乳液对导数分光光度法测定微量铁的增敏作用 |
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| 引用本文： | 朱霞石,张晓红,郭荣. 非离子型微乳液对导数分光光度法测定微量铁的增敏作用[J]. 光谱学与光谱分析, 1999, 19(5): 747-750 |
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| 作者姓名： | 朱霞石 张晓红 郭荣 |
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| 作者单位： | 扬州大学化学化工系,扬州,225002 |
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| 摘 要： | 与胶束介质比较，非离子型Ｏ／Ｗ微乳液Ｔｒｉｔｏｎ Ｘ－１００／ｎ－Ｃ５Ｈ１１ＯＨ／ｎ－Ｃ９Ｈ２０／Ｈ２Ｏ对以磺基水杨酸为显色剂三阶导数分光光度法测定微量铁有更好的增敏作用。在ｐＨ４－６的六次甲基四胺－盐酸介质中，铁－磺基水杨酸配合物的最大吸收工λｍａｘ为２４９ｎｍ，微乳液介质中的测定灵敏度比胶束介质中提高近一倍。
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| 关 键 词： | 铁 磺基水杨酸 导数分光光度法 微乳液 增敏 |
Sensitizing Effect of Nonionic Microemulsion on the Derivative Spectrophotometric Determination of Trace Iron with Sulfosalicylic Acid |
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| Xiashi ZHU,Xiaohong ZHANG,Rong GUO. Sensitizing Effect of Nonionic Microemulsion on the Derivative Spectrophotometric Determination of Trace Iron with Sulfosalicylic Acid[J]. Spectroscopy and Spectral Analysis, 1999, 19(5): 747-750 |
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| Authors: | Xiashi ZHU Xiaohong ZHANG Rong GUO |
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| Affiliation: | Department of Chemistry and Chemical Engineering, Teachers College of Yangzhou University, 225002 Yangzhou. |
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| Abstract: | The sensitizing effect of O/W microemulsion of Triton X-100/n-C5H11OH/n-C9H20/H2O as a medium on the derivative spectrophotometry of Fe-Sal was studied. The results show that the sensitivity of determination in O/W microemulsion was higher than that in micelle. The reagent Sal has higher distribution coefficient KD and constant K in microemulsion than in the micelle system and lower binding in O/W microemulsion than in the micelle system. This results also illustrate that O/W microemulsion has more solubilization for Sal than micelle does, so that O/W microemulsion has more sensitizing reaction than micelle does. |
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| Keywords: | Iron Sulfosalicylic acid Derivative spectrophotometric determination Microemulsion Sensitized reaction |
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