A Hg2+-selective chemodosimeter based on desulfurization of coumarin thiosemicarbazide in aqueous media

Spectrochim Acta A Mol Biomol Spectrosc. 2010 Jul;76(2):248-52. doi: 10.1016/j.saa.2010.03.028. Epub 2010 Mar 20.

Abstract

A fluorescence-enhanced chemodosimeter 1 based on coumarin thiosemicarbazide for Hg(2+) was developed via a Hg(2+)-induced desulfurization reaction. Spectroscopic results reveal that chemodosimeter 1 exhibits high sensitivity and selectivity for Hg(2+) in comparison to common interfering metal ions in aqueous media at room temperature.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Coumarins / chemistry
  • Mercury / analysis*
  • Semicarbazides / chemistry
  • Sensitivity and Specificity
  • Spectrometry, Fluorescence / methods*

Substances

  • Coumarins
  • Semicarbazides
  • thiosemicarbazide
  • coumarin
  • Mercury