A new fluorescent chemosensor for Hg2+ in aqueous solution

Duong Tuan Quang, Nguyen Van Hop, Nguyen Dinh Luyen, Ha Phuong Thu, Doan Yen Oanh, Nguyen Khoa Hien, Nguyen Van Hieu, Min Hee Lee, Jong Seung Kim

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


We prepared an aminothiourea-derived Schiff base (DA) as a fluorescent chemosensor for Hg2+ ions. Addition of 1 equiv of Hg2+ ions to the aqueous solution of DA gave rise to an obvious fluorescence enhancement and the subsequent addition of more Hg2+ induced gradual fluorescence quenching. Other competing ions, including Pb2+, Cd 2+, Cr3+, Zn2+, Fe2+, Co 3+, Ni2+, Ca2+, Mg2+, K+ and Na+, did not induce any distinct fluorescence changes, indicating that DA can selectively detect Hg2+ ions in aqueous solution.

Original languageEnglish
Pages (from-to)222-225
Number of pages4
Issue number2
Publication statusPublished - 2013


  • Schiff base
  • aqueous solution
  • fluorescent chemosensor

ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Biophysics


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