Studies on Clonidine Hydrochloride Selective Coated Wire Electrode with Bilayer Polymeric Films

Abstract

Abstract: A new type of coated wire electrode (CWE) with bilayer .polymeric films is reported. Platinum wire is modified by conductive polyaniline and then with a film of PVC (containing electroactive species). This kind of electrode not only has merits of CWE, but also has fine stability and repro-ducibility. With successive determination of 8 hours, the potential drifts are about 0.8mV. The Nernstian linear range of electrode shows 1 × 10^-1～8×10^-6mol/L with an average slope of 56.7mV/decade. The direct potentiometry for samples shows 100.9% of average recovery and 1.3% of standard deviation.

Key words: Potentiometry, Ion-selective electrode, Coated-wire electrode, Modified electrode, Clonidine

TrendMD:

Hu Xiaoya, Leng Zongzhou . Studies on Clonidine Hydrochloride Selective Coated Wire Electrode with Bilayer Polymeric Films[J]. Chem. J. Chinese Universities, 1989, 10(1): 68.

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Studies on Clonidine Hydrochloride Selective Coated Wire Electrode with Bilayer Polymeric Films

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