罗丹明类钯离子荧光分子探针

高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (9): 1725.

罗丹明类钯离子荧光分子探针

李宏林, 樊江莉, 刘晓健, 孙世国, 彭孝军

大连理工大学精细化工国家重点实验室, 大连 116012

收稿日期:2010-03-22 出版日期:2010-09-10 发布日期:2010-09-10
通讯作者: 樊江莉, 女, 博士, 副教授, 主要从事荧光染料和荧光探针的研究. E-mail: fanjl@dlut.edu.cn
基金资助:
国家自然科学基金(批准号: 20706008, 20725621, 20872012)资助.

Rhodamine-Based Fluorescence Probe for Pd²⁺ Detection

LI Hong-Lin, FAN Jiang-Li^*, LIU Xiao-Jian, SUN Shi-Guo, PENG Xiao-Jun

State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China

Received:2010-03-22 Online:2010-09-10 Published:2010-09-10
Contact: FAN Jiang-Li. E-mail: fanjl@dlut.edu.cn
Supported by:
国家自然科学基金(批准号: 20706008, 20725621, 20872012)资助.

摘要/Abstract

摘要： 将烯丙基结构引入到罗丹明螺环中, 合成了荧光增强型钯离子探针RPd4. RPd4表现出对Pd²⁺的专一选择性和对其它阳离子良好的抗干扰能力. 探针荧光强度随着Pd²⁺的加入逐渐增强, 并且在微摩尔级呈现良好的线性关系, 通过拟合计算得到对Pd²⁺的检出限为0.51 μmol/L. RPd4具有较低的pK_a值(3.81±0.02), 说明该探针可以在近中性pH范围内对Pd²⁺进行选择性识别. 该探针还可以提供比色及荧光两种方式对Pd²⁺进行可视化检测.

关键词: 荧光探针, 罗丹明, 烯丙基, 荧光增强

Abstract: A new rhodamine-based derivative modified with allyl group, RPd4, was synthesized as fluorescence-enhanced probe with excellent selectivity for Pd²⁺ and good anti-jamming ability over other cations. The fluorescence intensitiy was linearly proportional to the amount of Pd²⁺ added in μmol/L level with a detection limit of 0.51 μmol/L. With the pK_a of 3.81±0.02, it can be used for Pd²⁺ detection in neutral pH range. The colorimetric and fluorimetric response between RPd4 and Pd²⁺ can provide a convenient method for visual detection of Pd²⁺.

Key words: Fluorescence probe, Rhodamine, Allyl, Fluorescence-enhanced

TrendMD:

李宏林, 樊江莉, 刘晓健, 孙世国, 彭孝军. 罗丹明类钯离子荧光分子探针. 高等学校化学学报, 2010, 31(9): 1725.

LI Hong-Lin, FAN Jiang-Li*, LIU Xiao-Jian, SUN Shi-Guo, PENG Xiao-Jun. Rhodamine-Based Fluorescence Probe for Pd²⁺ Detection. Chem. J. Chinese Universities, 2010, 31(9): 1725.

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