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Ferrocene-substituted calix[4]pyrrole modified carbon paste electrodes for anion detection in water

Ferrocene-substituted calix[4]pyrrole modified carbon paste electrodes for anion detection in water
Ferrocene-substituted calix[4]pyrrole modified carbon paste electrodes for anion detection in water
A neutral redox-active receptor (ferrocene functionalized calix[4]pyrrole) was used as an active component in carbon paste electrodes and ion-selective electrodes ISEs, for the detection of anions in aqueous solution. Measurements with the carbon paste electrodes were conducted using Osteryoung square-wave voltammetry. At the surface of the modified electrode the redox potential of ferrocene-substituted calix[4]pyrrole was found to be at ca. 400 mV. Amongst the anions studied, dihydrogen phosphate and fluoride caused the strongest decrease of peak current (approximately 25%), followed by bromide and chloride. This sensitivity sequence was compared with that obtained with ISEs containing the ferrocene-substituted calix[4]pyrrole. The influence of the interface between host molecule environment and aqueous solution containing target anion on the molecular recognition process and electrochemical signal generation has been investigated.
calix[4]pyrrole, ferrocene, carbon paste electrodes, osteryoung square wave voltammetry, ion-selective electrode, potentiometry ion-selective electrodes, liquid-membrane electrodes, molecular recognition, adenine-nucleotides, pair receptor, bulk optodes, sensors, binding, agents, complexation
1572-6657
223-228
Szymanska, Iwona
d3ddcb42-2b7e-495f-8c99-75264b282ef4
Radecka, Hanna
3c2bd9a8-83a6-4f78-8cde-de14e4b401a5
Radecki, Jerzy
8996c0ab-2014-45ae-b828-25c5b2f05b4b
Gale, Philip A.
c840b7e9-6847-4843-91af-fa0f8563d943
Warriner, Colin N.
2cdda67a-3408-4a5e-963c-8b0ee7555980
Szymanska, Iwona
d3ddcb42-2b7e-495f-8c99-75264b282ef4
Radecka, Hanna
3c2bd9a8-83a6-4f78-8cde-de14e4b401a5
Radecki, Jerzy
8996c0ab-2014-45ae-b828-25c5b2f05b4b
Gale, Philip A.
c840b7e9-6847-4843-91af-fa0f8563d943
Warriner, Colin N.
2cdda67a-3408-4a5e-963c-8b0ee7555980

Szymanska, Iwona, Radecka, Hanna, Radecki, Jerzy, Gale, Philip A. and Warriner, Colin N. (2006) Ferrocene-substituted calix[4]pyrrole modified carbon paste electrodes for anion detection in water. Journal of Electroanalytical Chemistry, 591 (2), 223-228. (doi:10.1016/j.jelechem.2006.04.007).

Record type: Article

Abstract

A neutral redox-active receptor (ferrocene functionalized calix[4]pyrrole) was used as an active component in carbon paste electrodes and ion-selective electrodes ISEs, for the detection of anions in aqueous solution. Measurements with the carbon paste electrodes were conducted using Osteryoung square-wave voltammetry. At the surface of the modified electrode the redox potential of ferrocene-substituted calix[4]pyrrole was found to be at ca. 400 mV. Amongst the anions studied, dihydrogen phosphate and fluoride caused the strongest decrease of peak current (approximately 25%), followed by bromide and chloride. This sensitivity sequence was compared with that obtained with ISEs containing the ferrocene-substituted calix[4]pyrrole. The influence of the interface between host molecule environment and aqueous solution containing target anion on the molecular recognition process and electrochemical signal generation has been investigated.

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More information

Published date: 2006
Keywords: calix[4]pyrrole, ferrocene, carbon paste electrodes, osteryoung square wave voltammetry, ion-selective electrode, potentiometry ion-selective electrodes, liquid-membrane electrodes, molecular recognition, adenine-nucleotides, pair receptor, bulk optodes, sensors, binding, agents, complexation

Identifiers

Local EPrints ID: 44553
URI: http://eprints.soton.ac.uk/id/eprint/44553
ISSN: 1572-6657
PURE UUID: 2b232423-14a1-4f4f-a7c1-ffbe52c73e67
ORCID for Philip A. Gale: ORCID iD orcid.org/0000-0001-9751-4910

Catalogue record

Date deposited: 07 Mar 2007
Last modified: 17 Dec 2019 01:52

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