Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (9): 1725.

• Articles • Previous Articles     Next Articles

Rhodamine-Based Fluorescence Probe for Pd2+ Detection

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

  1. 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.

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 pKa 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

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