Corroles as receptors in liquid membrane electrodes and their potentiometric response towards salicylic acid

Jerzy Radecki, Iwona Stenka, Eduard Dolusic, Wim Dehaen

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Résumé

Here, we report on the application of corroles as analytically active compounds in liquid membrane electrodes (ISE) that are sensitive towards salicylic acid and salicylate. The potentiometric signals generated by corrole-incorporated ISEs strongly depend on the pH of the aqueous sample solution and the membrane composition, such as the presence of lipophilic sites. Corrole incorporating ISEs are characterised by a low detection limit (4.0×10minus5 M) and a wide linear range (4.0×10minus5 to 5.3×10minus3 M). Also, they are free from interference versus other organic anions. The mechanism of the generation of the potentiometric signals of corrole incorporating ISEs in the presence of salicylate anion, as well salicylic acid, will be discussed.
langue originaleAnglais
Pages (de - à)2282-2288
Nombre de pages7
journalElectrochimica Acta
Volume51
Numéro de publication11
Les DOIs
Etat de la publicationPublié - 2006

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