A direct electrochemical method for the determination of allopurinol and uric acid mixtures: Adsorption of uric acid at the pyrolytic graphite electrode
β Scribed by Glenn Dryhurst; De P.K.
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 766 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0003-2670
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## Abstract Uric acid (UA) was determined in the presence of ascorbic acid (AA) by using a carbon paste electrode modified superficially by a Ξ²βcyclodextrin film (CPE/Ξ²βCD). The surface carbon paste electrode was prepared applying a 30 cycles potential program and using a 1β M HClO~4~+0.01β M Ξ²βCD el
A gold electrode surface was modified using a dinuclear copper complex [Cu II 2 (Ldtb)(-OCH 3 )](BPh 4 ) and then coated with a chitosan film. This biomimetic polymer film-coated electrode was employed to eliminate the interference from ascorbic acid and uric acid in the sensitive and selective dete