title: Fluorescence "turn-on" chemosensor for the selective detection of zinc ion based on Schiff-base derivative.
abstract: N,N'-phenylenebis(salicylideaminato) (L) has been used to detect trace amounts of zinc ion in acetonitrile-water solution by fluorescence spectroscopy. The fluorescent probe undergoes fluorescent emission intensity enhancement upon binding to zinc ions in MeCN/H(2)O (1:1, v/v) solution. The fluorescence enhancement of L is attributed to the 1:1 complex formation between L and Zn(II), which has been utilized as the basis for selective detection of Zn(II). The linear response range for Zn(II) covers a concentration range of 1.6x10(-7) to 1.0x10(-5)mol/L, and the detection limit is 1.5x10(-7)mol/L. The fluorescent probe exhibits high selectivity over other common metal ions, and the proposed fluorescent sensor was applied to determine zinc in water samples and waste water.
authors.affiliation: Department of Chemistry, Islamic Azad University, Savadkooh Branch, Savadkooh, Iran. smhosseini@khayam.ut.ac.ir
authors.forename: Morteza
authors.initials: M
authors.lastname: Hosseini
authors.forename: Zahra
authors.initials: Z
authors.lastname: Vaezi
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Ganjali
authors.forename: Farnoush
authors.initials: F
authors.lastname: Faridbod
authors.forename: Shiva Dehghan
authors.initials: SD
authors.lastname: Abkenar
authors.forename: Kamal
authors.initials: K
authors.lastname: Alizadeh
authors.forename: Masoud
authors.initials: M
authors.lastname: Salavati-Niasari
mesh_terms: D000097:Acetonitriles / Q000737:chemistry; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000737:chemistry*; D006801:Humans; D007477:Ions / Q000032:analysis*; D015394:Molecular Structure; D012545:Schiff Bases / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry; D013050:Spectrometry, Fluorescence / Q000379:methods; D014867:Water / Q000737:chemistry; D015032:Zinc / Q000032:analysis*
chemical_list: D000097:Acetonitriles; D005456:Fluorescent Dyes; D007477:Ions; D012545:Schiff Bases; D012996:Solutions; D014867:Water; D015032:Zinc; C032159:acetonitrile