AMPEROMETRIC DETERMINATION OF COPPER USING SCREEN-PRINTED ELECTRODES

Authors
SOMASUNDRUM M BANNISTER JV
Citation
M. Somasundrum et Jv. Bannister, AMPEROMETRIC DETERMINATION OF COPPER USING SCREEN-PRINTED ELECTRODES, Sensors and actuators. B, Chemical, 15(1-3), 1993, pp. 203-208
Citations number
21
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
Sensors and actuators. B, Chemical → ACNP
ISSN journal
09254005
Volume
15
Issue
1-3
Year of publication
1993
Pages
203 - 208
Database
ISI
SICI code
0925-4005(1993)15:1-3<203:ADOCUS>2.0.ZU;2-H
Abstract
An amperometric method for the determination of copper ions has been d eveloped using disposable, screen-printed electrodes modified with the ligand bis-cyclohexanone oxaldihydrazone. The electrodes operate at 250 mV versus SCE, giving a linear response to copper across the range 0.03-0.3 mM (r = 0.983, n = 13). The effect on the electrode response of variations in pH, temperature, ligand concentration and storage ti me are outlined; as well as the effect of competing cations including magnesium, barium, ammonium, calcium, cobalt, iron(III), nickel and zi nc.