The co-luminescence effect of Eu-Gd-Ofloxacin-SDBS system and its analytical application

被引：9

作者：

Wang, Feng ^{[1
]}

Huang, Wei ^{[1
]}

Hou, Yong ^{[1
]}

Xu, Zhenni ^{[1
]}

机构：

[1] Zaozhuang Univ, Dept Chem, Zaozhuang 277160, Shandong, Peoples R China

来源：

JOURNAL OF FLUORESCENCE | 2007年 / 17卷 / 01期

关键词：

co-luminescence; europium; ofloxacin; energy transfers;

D O I：

10.1007/s10895-006-0136-2

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A fluorescence enhancement phenomenon in the europium (Eu)-Ofloxacin (OF)-Sodium Dodecyl Benzene Sulfonate (SDBS) fluorescence system was observed when Gd3+ was added. The fluorescence intensity of the systems was measured (lambda (ex)/lambda (em) = 280/612 nm) at pH 7.8. Under optimum conditions, a linear relationship between the enhanced fluorescence intensity and the Eu3+ concentration in the range of 5.0x10(-10) similar to 2.0x10(-7) mol.L-1 was observed. The detection limit of Eu3+ was 1.46x10(-10) mol.L-1 (S/N = 3). This method was used for the determination of trace amounts of europium in synthetic rare earth samples with satisfactory results. In addition, the interaction mechanism is also studied.

引用

页码：105 / 111

页数：7

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