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Nitrite-selective electrode based on an electropolymerized cobalt phthalocyanine

✍ Scribed by John R. Allen; Antonio Florido; Shelley D. Young; Sylvia Daunert; Leonidas G. Bachas

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
617 KB
Volume
7
Category
Article
ISSN
1040-0397

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✦ Synopsis

Abstract

Cobalt(II) 4,4′,4″,4″′‐tetraaminophthalocyanine was electropolymerized on glassy carbon by cyclic voltammetry. The formed polymeric films were shown to interact selectively with anions and were used in the design of ion‐selective electrodes. Different polymerization conditions, as well as different conditioning solutions and buffer systems, were investigated in order to optimize the response of the electrodes. The electrodes were found to be most selective for nitrite. The slopes of the calibration plots were sub‐Nernstian and the detection limit for nitrite was 1.7 × 10^−4^ M.

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