title: Pyrophosphate selective recognition in aqueous solution based on fluorescence enhancement of a new aluminium complex.
abstract: A novel and simple fluorescence enhancement method for selective pyrophosphate(PPi) sensing was proposed based on a 1:1 metal complex formation between bis(8-hydroxy quinoline-5-solphonat) chloride aluminum(III) (Al(QS)(2)Cl), (L) and PPi in aqueous solution. The linear response range covers a concentration range of 1.6 × 10(-7) to 1.0 × 10(-5) mol/L of PPi and the detection limit of 2.3 × 10(-8) mol/L. The association constant of L-PPi complex was calculated 2.6 × 10(5) L/mol. L was found to show selectively and sensitively fluorescence enhancement toward PPi over than I(3)(-), NO(3)(-), CN(-), CO(3)(2-), Br(-), Cl(-), F(-), H(2)PO4(-) and SO(4)(2-), which was attributed to higher stability of inorganic complex between pyrophosphate and L.
authors.affiliation: Faculty of New Sciences & Technologies, University 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: Mehdi
authors.initials: M
authors.lastname: Tavakoli
authors.forename: Parviz
authors.initials: P
authors.lastname: Norouzi
authors.forename: Farnoush
authors.initials: F
authors.lastname: Faridbod
authors.forename: Hassan
authors.initials: H
authors.lastname: Goldooz
authors.forename: Alireza
authors.initials: A
authors.lastname: Badiei
mesh_terms: D011756:Diphosphates / Q000737:chemistry*; D005453:Fluorescence; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D012996:Solutions; D013050:Spectrometry, Fluorescence / Q000295:instrumentation / Q000379:methods*; D014867:Water / Q000737:chemistry
chemical_list: D011756:Diphosphates; D009942:Organometallic Compounds; D012996:Solutions; C568571:bis(8-hydroxy quinoline-5-solphonat)chloride aluminum(III); D014867:Water