Application of Hierarchical CuO Bowl-like Array Film to Amperometric Detection of l-Ascorbic Acid.
Anal Sci
; 34(11): 1225-1230, 2018.
Article
em En
| MEDLINE
| ID: mdl-30416183
ABSTRACT
A hierarchical CuO array film was fabricated by electrochemical deposition with the aid of a colloidal monolayer as a template, followed by oxidation at high temperature. The prepared CuO film with a granular structure was arranged with ordered, hexagonal close-packed, and bowl-like pores. Combined with a gold layer sputtered on a glass substrate, this CuO array film was used as an electrochemical electrode in the amperometric detection of l-ascorbic acid. The array film exhibited a high sensitivity of 3484 µA mM-1 cm-2, a wide linear range from 1 µM to 7 mM, and a detection limit of 0.2 µM. Excellent stability was also achieved. The results demonstrate that the hierarchical CuO bowl-like array film is a promising new platform for the construction of non-enzymatic ascorbic acid sensors.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
Anal Sci
Ano de publicação:
2018
Tipo de documento:
Article