A colorimetric probe for dual sensing of Hg2+ and Cu2+ ions in water

Yi Wun Sie, Chia Lin Li, Chin Feng Wan, Jie Hong Chen, Ching Han Hu, Hongbin Yan, An Tai Wu

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A colorimetric probe (L) was prepared and its metal ion sensing properties were investigated. Probe L exhibited obvious colorimetric response toward Hg2+ and Cu2+ with different color changes in water. The association constant for probe L-Hg2+ and probe L-Cu2+ in water containing 0.5% DMSO (v/v) was determined as 5.62 × 107 M−1 and 1.26 × 107 M−1, respectively. The detection limit of probe L for the analysis of Hg2+ and Cu2+ was determined as 0.19 ppm and 0.39 ppm, respectively. Moreover, probe L can be used for selective sensing of Hg2+ and Cu2+ based on the distinct color changes in real samples.

Original languageEnglish
Pages (from-to)325-329
Number of pages5
JournalInorganica Chimica Acta
Publication statusPublished - 2017 Jan 1

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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