| Literature DB >> 21286793 |
Morteza Hosseini1, Mohammad Reza Ganjali, Mehdi Tavakoli, Parviz Norouzi, Farnoush Faridbod, Hassan Goldooz, Alireza Badiei.
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. © Springer Science+Business Media, LLC 2011Entities:
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Year: 2011 PMID： 21286793 DOI： 10.1007/s10895-011-0837-z
Source DB: PubMed Journal: J Fluoresc ISSN： 1053-0509 Impact factor: 2.217