| 镧对镝-磺基水杨酸配合物荧光增强效应的研究和应用 |
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| 引用本文： | 尹洪宗,崔彦,朱贵云,司志坤,姜玮.镧对镝-磺基水杨酸配合物荧光增强效应的研究和应用[J].光谱学与光谱分析,1999,19(3):460-462. |
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| 作者姓名： | 尹洪宗 崔彦 朱贵云 司志坤 姜玮 |
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| 作者单位： | 1. 山东农业大学基础部,271018,泰安
2. 山东大学化学系,250100,济南 |
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| 摘 要： | 本文研究发现，三价稀土离子Ｌａ３＋的存在对二元配合物Ｄｙ３＋－磺基水杨酸（ＳＳＡ）体系具有强烈的荧光增强效应。在常温条件下，研究了Ｌａ３＋参与下Ｄｙ３＋－ＳＳＡ体系的荧光特性、形成条件和影响因素，结果表明，Ｌａ３＋可使Ｄｙ３＋－ＳＳＡ体系荧光增强１００倍。在最佳条件下，Ｄｙ的浓度在３．０×１０－７～１．０×１０－５ｍｏｌ／ｄｍ３范围内与荧光强度成线性关系，检测限达到８．０×１０－８ｍｏｌ／ｄｍ３。利用该体系测定了合成稀土样品和包头稀土标准样品，结果满意，回收实验的回收率为９９．３％±０．１％。
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| 关 键 词： | 镝 镧 磺基水杨酸 荧光增强效应 |
Fluorescence Enhancement of the Dysprosium-Sulfosalicylic Acid System by Lanthanum and Its Application |
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| Hongzong YIN,Yan CUI,Guiyun ZHU,Zhikun SI,Wei JIANG.Fluorescence Enhancement of the Dysprosium-Sulfosalicylic Acid System by Lanthanum and Its Application[J].Spectroscopy and Spectral Analysis,1999,19(3):460-462. |
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| Authors: | Hongzong YIN Yan CUI Guiyun ZHU Zhikun SI Wei JIANG |
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| Institution: | Dept. of Basic Science, Shandong Agric. Univ, 271018 Taian. |
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| Abstract: | A fluorescence enhancement produced by adding lanthanum(III) to dysprosium-sulfosalicylic acid system was observed. La3+ enhanced the fluorescence intensity by two orders of magnitude compared with the system without La3+. The system was used for the determination of trace amount of dysprosium in the range of 3.0 x 10(-7)-1.0 x 10(-5) mol/dm3, and the detection limit was 8.0 x 10(-8) mol/dm3. The procedure was applied to the determination of dysprosium in synthetic rare earth samples and standard rare earth samples with satisfactory results. |
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| Keywords: | Lanthanum Dysprosium Fluorescence enhancement Sulfosalicylic acid |
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