A highly selective fluorescent probe for pyrophosphate detection in aqueous solutions.
Identifieur interne : 000429 ( PubMed/Curation ); précédent : 000428; suivant : 000430A highly selective fluorescent probe for pyrophosphate detection in aqueous solutions.
Auteurs : M R Ganjali [Iran] ; M. Hosseini ; F. Aboufazeli ; F. Faridbod ; H. Goldooz ; A R BadieiSource :
- Luminescence : the journal of biological and chemical luminescence [ 1522-7243 ]
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Diphosphates.
- chemical : Fluorescent Dyes.
- Limit of Detection, Molecular Probe Techniques.
Abstract
A novel and simple fluorescence enhancement method is introduced for selective pyrophosphate (PPi) sensing in an aqueous solution. The method is based on a 1:1 metal complex formation between tris(8-hydroxyquinoline-5-sulphonate) thulium(III) [Tm(QS)(3)] and PPi ion. The linear response covers a concentration range of 1.6 × 10(-7) -1.0 × 10(-5) mol/L PPi and the detection limit is 2.3 × 10(-8) mol/L. The association constant of Tm(QS)(3) -PPi complex was calculated as 2.6 × 10(5) mol/L. Tm(QS)(3) shows a selective and sensitive fluorescence enhancement toward PPi ion in comparison with I(3)(-), NO(3)(-), CN(-), CO(3)(2-), Br(-), Cl(-), F(-), H(2) PO(4) (-) and SO(4)(2-), which is attributed to higher stability of the inorganic complex between pyrophosphate ion and Tm(QS)(3).
DOI: 10.1002/bio.1316
PubMed: 21735538
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pubmed:21735538Le document en format XML
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<front><div type="abstract" xml:lang="en">A novel and simple fluorescence enhancement method is introduced for selective pyrophosphate (PPi) sensing in an aqueous solution. The method is based on a 1:1 metal complex formation between tris(8-hydroxyquinoline-5-sulphonate) thulium(III) [Tm(QS)(3)] and PPi ion. The linear response covers a concentration range of 1.6 × 10(-7) -1.0 × 10(-5) mol/L PPi and the detection limit is 2.3 × 10(-8) mol/L. The association constant of Tm(QS)(3) -PPi complex was calculated as 2.6 × 10(5) mol/L. Tm(QS)(3) shows a selective and sensitive fluorescence enhancement toward PPi ion in comparison with I(3)(-), NO(3)(-), CN(-), CO(3)(2-), Br(-), Cl(-), F(-), H(2) PO(4) (-) and SO(4)(2-), which is attributed to higher stability of the inorganic complex between pyrophosphate ion and Tm(QS)(3).</div>
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<Abstract><AbstractText>A novel and simple fluorescence enhancement method is introduced for selective pyrophosphate (PPi) sensing in an aqueous solution. The method is based on a 1:1 metal complex formation between tris(8-hydroxyquinoline-5-sulphonate) thulium(III) [Tm(QS)(3)] and PPi ion. The linear response covers a concentration range of 1.6 × 10(-7) -1.0 × 10(-5) mol/L PPi and the detection limit is 2.3 × 10(-8) mol/L. The association constant of Tm(QS)(3) -PPi complex was calculated as 2.6 × 10(5) mol/L. Tm(QS)(3) shows a selective and sensitive fluorescence enhancement toward PPi ion in comparison with I(3)(-), NO(3)(-), CN(-), CO(3)(2-), Br(-), Cl(-), F(-), H(2) PO(4) (-) and SO(4)(2-), which is attributed to higher stability of the inorganic complex between pyrophosphate ion and Tm(QS)(3).</AbstractText>
<CopyrightInformation>Copyright © 2011 John Wiley & Sons, Ltd.</CopyrightInformation>
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