| 铝（Ⅲ）－桑色素─含氧有机溶剂熄灭荧光光度法测定微量氟的研究 |
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| 引用本文： | 张书圣,黄云松,江淑芙.铝（Ⅲ）－桑色素─含氧有机溶剂熄灭荧光光度法测定微量氟的研究[J].青岛科技大学学报,1994(2). |
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| 作者姓名： | 张书圣 黄云松 江淑芙 |
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| 摘 要： | 在含氧有机溶剂乙醇存在下，Ａｌ（Ⅲ）－桑色素配合物的荧光强度成倍增加，氟离子能与铝离子形成更稳定的配合物，据此，首次提出了测定微量氟的高灵敏熄灭荧光光度法，对氟离子的线性范围为０～１０μｇ／１０ｍｌ，检测限为０．１０μｇＦ／１０ｍｌ，用所建立的方法测定了市场上销售的药物牙膏中微量氟的含量，结果令人满意。
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| 关 键 词： | 氟 桑色素 熄灭荧光光度法 |
Fluorescence Quenching Method for Determination of Trace Fluoride Based on Reaction of Fluorescent Complex-Aluminum(Ⅲ)-Morin-Aqueous Solvent of Ethanol |
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| Zhang Shusheng, Huang Yunsong, Jiang Sufu.Fluorescence Quenching Method for Determination of Trace Fluoride Based on Reaction of Fluorescent Complex-Aluminum(Ⅲ)-Morin-Aqueous Solvent of Ethanol[J].Journal of Qingdao University of Science and Technology:Natutral Science Edition,1994(2). |
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| Authors: | Zhang Shusheng Huang Yunsong Jiang Sufu |
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| Affiliation: | Department of Applied Chemistry |
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| Abstract: | It is found that in the presence of aqueous organic solvent of ethanol, the sensitivity and selectivity of fluorescent reaction of aluminum-morin were greatly increased. The method is based on quenching the fluorescence of the complex compound of aluminum(Ⅲ)-morin-ethanol by fluoride. The determination limit is 0. 10μg F-/10ml, the relative standard den ation is 1. 7% and the linear range of fluoride is 0￣ 10μg/10ml. The interference of foreign ions has been studied.Also the method has been applied to determine trace fluoride in some toothpastes, and satisfactory results are obtained. |
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| Keywords: | fluoride quenching fluorimetric method morin |
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