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Lead ion sensitive electrode based on a supported BLM system
Author(s) -
Salamon Zdzislaw,
Ti Tien H.
Publication year - 1991
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.1140030718
Subject(s) - platinum , cyclic voltammetry , electrode , bilayer , redox , electron transfer , ion , chemistry , molecule , electrochemistry , inorganic chemistry , analytical chemistry (journal) , membrane , materials science , photochemistry , organic chemistry , catalysis , biochemistry
The lead ion sensitivity of a solid‐supported BLM system containing TCNQ (7, 7, 8, 8‐tetracy‐anoquinodimethan) as an electron mediator in 4, 4′‐n‐octyl‐cyanobiphenyl (8CB) dissolved in squalene, with a teflon coated platinum wire as a solid support, has been investigated with cyclic voltammetry. The results have shown that TCNQ in a cyanobiphenyl bilayer membrane produces a unique System that increases by three orders of magnitude the lead ion sensitivity of the platinum electrode. Cyclic voltammograms have also shown that a charge‐transfer complex between liquid crystal and TCNQ molecules is created and participates in redox reactions.