A selective colorimetric fluorescent chemosensor for Hg2+ in aqueous medium and in the solid state

Hsuan Ju Tsai, Yu chun Su, Chin Feng Wan, An Tai Wu

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6 Citations (Scopus)


A simple colorimetric and turn-on fluorescence receptor RN (Rhodamine-based derivative) was prepared and its cation-sensing properties were investigated. Receptor RN displayed a selective sensing of Hg2+ and showed an obvious colorimetric changing in aqueous solution (from colorless to pink color) and in the solid state (from red to pink color), respectively. The association constant of RN-Hg2+ complex was calculated to be 8.25×109 M−1, and the detection limit for Hg2+ was found to be 27 ppb.

Original languageEnglish
Pages (from-to)279-283
Number of pages5
JournalJournal of Luminescence
Publication statusPublished - 2018 Feb


All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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