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Proceedings Paper

Ag+-sensitive membranes for electrochemical and optical sensors
Author(s): Wojciech Wroblewski; Artur Dybko; Ewa Rozniecka; Zbigniew Brzozka
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Paper Abstract

The paper is focused on lipophilic acyclic thioethers as neutral ionophores for heavy-metals cations. Membranes based on plasticized PVC containing these carriers exhibited high selectivity toward silver cations over transition metal ions (log KAgM < -4.5) except mercury ions. Membrane containing the ionophore II (with l-naphtyl pendant group) was used to design silver-selective ISE which shows linear response in the range 3 - 6 pAg with a slope of 51.5 mV/pAg. The addition of the pH chromoionophore to the membrane composition allowed to obtain a silver-sensitive optrode membrane, responding in the concentration range 0.01 - 1 mM Ag+.

Paper Details

Date Published: 30 April 1999
PDF: 6 pages
Proc. SPIE 3730, Optoelectronic and Electronic Sensors III, (30 April 1999); doi: 10.1117/12.346841
Show Author Affiliations
Wojciech Wroblewski, Warsaw Univ. of Technology (Poland)
Artur Dybko, Warsaw Univ. of Technology (Poland)
Ewa Rozniecka, Warsaw Univ. of Technology (Poland)
Zbigniew Brzozka, Warsaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 3730:
Optoelectronic and Electronic Sensors III
Antoni Nowakowski; Bogdan Chachulski, Editor(s)

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