2012•Journal of Functional BiomaterialsOpen access

Highly selective fluorescence detection of Pb~(2+) by the derivative of 2-furaldehyde-indolizine

Bingxiang Wang

Abstract

The compound 5 of 2-furaldehyde-indolizine was synthesized.Its structure was characterized by using IR,UV and 1H NMR.The fluorescent and the influence of different transitional metal ions such as Co2+,Ca2+,Zn2+,Cu2+,K+,Ni2+,Mn2+,Pb2+ on thiscompound were studied systematically.The results showed this compound exhibited a highly selective fluorescence quenching effect by Pb2+ ions,while other metal ions almost no quenching happened.The UV absorption spectra increased with the addition of Pb2+ into the solution of 2-furaldehyde-indolizine suggesting that chemical reaction occurred between the Pb2+ and this compound.This compound is promising to be the probe for the Pb2+.

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Key concepts: Indolizine, Fluorescence, Quenching (fluorescence), Metal ions in aqueous solution, Derivative (finance), Ion, Photochemistry, Materials science