title: Selective recognition of acetate ion based on fluorescence enhancement chemosensor.
abstract: Fluorescence study of the complexation between uranyl salophen (L) and some common anions in acetonitrile-water (90:10, v/v) solution showed a tendency of L toward acetate ion (AcO-). The fluorescence enhancement of L is attributed to a 1:1 complex formation between L and acetate ion which was utilized as the basis for the selective detection of AcO-. The association constant of the 1:1 complex formation of L-AcO- was calculated as 6.60 × 10(6) . The linear response range of the fluorescent chemosensor covers a AcO- concentration range of 1.6 × 10(-7) to 2.5 × 10(-5)  mol/L, with a detection limit of 2.5 × 10(-8)  mol/L. L showed a selective and sensitive fluorescence enhancement response toward acetate ion over I3- , NO3-, CN-, CO3 (2-), Br-, Cl-, F-, H2 PO4- and SO4 (2-) , which was attributed to the higher stability of inorganic complex between acetate and L.
authors.affiliation: Department of Life Science Engineering, Faculty of New Sciences and Technologies, Unversity of Tehran, Tehran, Iran. smhosseini@khayam.ut.ac.ir
authors.forename: Morteza
authors.initials: M
authors.lastname: Hosseini
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Ganjali
authors.forename: Bahareh
authors.initials: B
authors.lastname: Veismohammadi
authors.forename: Farnoush
authors.initials: F
authors.lastname: Faridbod
authors.forename: Shiva Dehghan
authors.initials: SD
authors.lastname: Abkenar
authors.forename: Masoud
authors.initials: M
authors.lastname: Salavati-Niasari
mesh_terms: D000085:Acetates / Q000737:chemistry*; D005453:Fluorescence; D007477:Ions / Q000737:chemistry*; D007700:Kinetics; D057230:Limit of Detection; D008163:Luminescent Measurements / Q000379:methods*; D009942:Organometallic Compounds / Q000737:chemistry*
chemical_list: D000085:Acetates; D007477:Ions; D009942:Organometallic Compounds; C518147:uranyl salophen