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Citation: 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. doi: 10.3724/SP.J.1095.2011.00718 shu

An Improved Fluorescence-enhanced Pd²⁺ Probe Derived from Rhodamine Fluorophore

1.
State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024

Corresponding author: FAN Jiangli,
Received Date: 3 December 2010
Available Online: 21 March 2011
Fund Project: 国家自然科学基金资助项目(21076032) (21076032)中央高等基本科研业务专项资金项目(DUT10LK05) (DUT10LK05)

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 pK_a 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-ofconcept 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.
- fluorescence probe,
- rhodamine,
- fluorescence-enhanced,
- Pd²⁺,
- propargyl group
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An Improved Fluorescence-enhanced Pd²⁺ Probe Derived from Rhodamine Fluorophore