Solid-contact ion-selective electrodes with highly selective thioamide derivatives of p-tert-butylcalix[4]arene for the determination of lead(II) in environmental samples

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Marcin Guziński, Grzegorz Lisak, Tomasz Sokalski, Johan Bobacka, Ari Ivaska, Maria Bocheńska, Andrzej Lewenstam
Publisher: AMER CHEMICAL SOC
Publication year: 2013
Journal: Analytical Chemistry
Journal acronym: ANAL CHEM
Volume number: 85
Issue number: 3
Start page: 1555
End page: 1561
Number of pages: 7
ISSN: 0003-2700
eISSN: 1520-6882


Abstract

Thioamide derivatives of p-tert-butylcalix[4]arene were used as ionophores in the development of solid-contact ion-selective electrodes based on conducting polymer poly(3,4-ethylenedioxythiophene)/polystyrene sulfonate (PEDOT/PSS) which was synthesized by electrodeposition on the glassy carbon electrodes. The typical ion-selective membranes with optionally two different plasticizers [bis(2-ethylhexyl)sebacate (DOS) and 2-nitrophenyl octyl ether (NPOE)] were investigated. The potentiometric selectivity coefficients were determined by separate solution method (SSM) for Pb2+ over Cu2+, Cd2+, Ca2+, Na+, and K+. High selectivity toward Pb2+ was obtained. By applying two conditioning protocols, a low detection limit log(a(DL)) approximate to -9 was achieved. The fabricated ion-selective electrodes were used to determine Pb2+ concentration in environmental samples. The obtained results were compared to analysis done by inductively coupled plasma mass spectrometry (ICPMS).

Last updated on 2020-02-04 at 04:53