title: A new fluorescent chemosensor for Hg2+ in aqueous solution.
abstract: We prepared an aminothiourea-derived Schiff base (DA) as a fluorescent chemosensor for Hg(2+) ions. Addition of 1 equiv of Hg(2+) ions to the aqueous solution of DA gave rise to an obvious fluorescence enhancement and the subsequent addition of more Hg(2+) induced gradual fluorescence quenching. Other competing ions, including Pb(2+), Cd(2+), Cr(3+), Zn(2+), Fe(2+), Co(3+), Ni(2+), Ca(2+), Mg(2+), K(+) and Na(+) , did not induce any distinct fluorescence changes, indicating that DA can selectively detect Hg(2+) ions in aqueous solution.
authors.affiliation: Department of Chemistry, Hue University, Hue, Vietnam. duongtuanquang@dhsphue.edu.vn
authors.forename: Duong Tuan
authors.initials: DT
authors.lastname: Quang
authors.forename: Nguyen Van
authors.initials: NV
authors.lastname: Hop
authors.forename: Nguyen Dinh
authors.initials: ND
authors.lastname: Luyen
authors.forename: Ha Phuong
authors.initials: HP
authors.lastname: Thu
authors.forename: Doan Yen
authors.initials: DY
authors.lastname: Oanh
authors.forename: Nguyen Khoa
authors.initials: NK
authors.lastname: Hien
authors.forename: Nguyen Van
authors.initials: NV
authors.lastname: Hieu
authors.forename: Min Hee
authors.initials: MH
authors.lastname: Lee
authors.forename: Jong Seung
authors.initials: JS
authors.lastname: Kim
mesh_terms: D005456:Fluorescent Dyes / Q000737:chemistry*; D008628:Mercury / Q000032:analysis*; D012545:Schiff Bases / Q000737:chemistry; D013050:Spectrometry, Fluorescence / Q000295:instrumentation / Q000379:methods*
chemical_list: D005456:Fluorescent Dyes; D012545:Schiff Bases; D008628:Mercury