title: Turn-on fluorescent chemosensor for determination of lutetium ion.
abstract: A turn-on fluorescent chemosensor is introduced for the detection of Lu(3+) ion using N-[3-methyl]-2-[pyridine-2-amido] phenyl] pyridine-2-carboxamide (L) molecule. Fluorescent emission intensity of L enhances after binding to Lu(3+) ions in ethanol-water solution (1:9, v/v). The observed enhancement is the result of a strong covalent binding between Lu(3+) ion and L (the binding constant value is 2.0×10(6) mol(-1) L). The proposed optical chemosensor can be applied for the analysis of Lu(3+) ion in a linear range of 3.3×10(-7) to 1.0×10(-5) mol L(-1). The limit of detection was obtained 8.6×10(-7) mol L(-1). The probe exhibits high selectivity toward Lu(3+) ion in comparison with common metal ions. The proposed fluorescent chemosensor was successfully used in the determination of Lu(3+) ion in some water samples.
authors.affiliation: Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran. Electronic address: faridbodf@khayam.ut.ac.ir.
authors.forename: F
authors.initials: F
authors.lastname: Faridbod
authors.affiliation: Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Sedaghat
authors.affiliation: Department of Life Science Engineering, Faculty of New Sciences & Technologies, University of Tehran, Tehran, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Hosseini
authors.affiliation: Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran; Biosensor Research Center, Endocrinology and Metabolism Cellular-Molecular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: M R
authors.initials: MR
authors.lastname: Ganjali
authors.affiliation: Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran 14176, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Khoobi
authors.affiliation: Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran 14176, Iran.
authors.forename: A
authors.initials: A
authors.lastname: Shafiee
authors.affiliation: Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran; Biosensor Research Center, Endocrinology and Metabolism Cellular-Molecular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: P
authors.initials: P
authors.lastname: Norouzi
mesh_terms: D002412:Cations / Q000032:analysis; D005456:Fluorescent Dyes / Q000737:chemistry*; D057230:Limit of Detection; D008187:Lutetium / Q000032:analysis*; D011725:Pyridines / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D014867:Water / Q000032:analysis*
chemical_list: D002412:Cations; D005456:Fluorescent Dyes; D011725:Pyridines; D014867:Water; D008187:Lutetium
keywords: Chemosensor; Enhancement; Fluorescence; Lutetium