| 改进的罗丹明类钯离子荧光分子探针 |
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| 引用本文： | 樊江莉,芦静,李宏林,刘晓健,朱浩,彭孝军.改进的罗丹明类钯离子荧光分子探针[J].应用化学,2011,28(11):1292-1297. |
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| 作者姓名： | 樊江莉 芦静 李宏林 刘晓健 朱浩 彭孝军 |
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| 作者单位： | (大连理工大学精细化工国家重点实验室 大连 116024) |
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| 基金项目： | 国家自然科学基金资助项目，中央高等基本科研业务专项资金项目 |
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| 摘 要： | 用罗丹明B与水合肼反应生成的中间体与溴丙炔反应合成了荧光增强型Pd2+检测用探针RPd5。 与Pd2+结合后，RPd5的吸收及荧光强度明显增强，其荧光强度增强约40倍，并使检测时间缩短至约16 min。 探针RPd5对Pd2+的响应灵敏，最低检出限为2.31×10-6 mol/L，可以在较宽pH值范围内特别是近中性pH值环境下有效检测Pd2+。 RPd5可以实现对Pd2+以比色及荧光2种途径的可视化识别，并可应用于土壤、池塘水等实际样品中痕量Pd2+的检测。 RPd5还可制成试纸用于纯净水中Pd2+检测。
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| 关 键 词： | 荧光探针 罗丹明 荧光增强 钯离子 炔丙基 |
| 收稿时间： | 2010-12-03 |
| 修稿时间： | 2011-03-21 |
An Improved Fluorescence-enhanced Pd2+ Probe Derived from Rhodamine Fluorophore |
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| FAN Jiangli,LU Jing,LI Honglin,LIU Xiaojian,ZHU Hao,PENG Xiaojun.An Improved Fluorescence-enhanced Pd2+ Probe Derived from Rhodamine Fluorophore[J].Chinese Journal of Applied Chemistry,2011,28(11):1292-1297. |
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| Authors: | FAN Jiangli LU Jing LI Honglin LIU Xiaojian ZHU Hao PENG Xiaojun |
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| Institution: | (State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian 116024) |
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| Abstract: | A new fluorescence-enhanced Pd2+ probe RPd5 was synthesized which shows both fluorescent and colorimetric responses to Pd2+ within 16 minutes. The fluorescent intensity was enhanced 40 times. With a pKa value of 3.96±0.01, it can detect Pd2+ in a wide pH range, especially in the neutral pH environment. RPd5 has the detection limit of 2.31×10-6 mol/L suggesting its high sensitivity for Pd2+ detection. Proof-of-concept experiments demonstrate its potential application for Pd2+ detection in real soil and water samples. Additionally, RPd5 can be loaded as test paper for Pd2+ evaluation in the clean water solution. |
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| Keywords: | fluorescence probe rhodamine fluorescence-enhanced Pd2 propargyl group |
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