Electrochemical sensing platform based on the biomass-derived microporous carbons for simultaneous determination of ascorbic acid, dopamine, and uric acid.
Biosens Bioelectron
; 121: 96-103, 2018 Dec 15.
Article
em En
| MEDLINE
| ID: mdl-30199714
ABSTRACT
A novel and highly selective electrochemical sensing platform (ZnCl2-CF/GCE) based on combination of kiwi skin and zinc chloride nanoparticles was developed for the simultaneous detection of ascorbic acid (AA), dopamine (DA), and uric acid (UA). The constructed electrode shows a high surface area and micro-mesoporous structure. And the electrochemical behaviors of the electrode were further explored by cyclic voltammetry (CV), impedance analysis (EIS), and differential pulse voltammetry (DPV). Under the optimal conditions, the ZnCl2-CF provides a high sensitivity and selective signaling in the co-existence system of AA, DA, and UA with linear response ranges of 0.05-200⯵M, 2-2000⯵M, and 1-2500⯵M, respectively. The detection limits (S/Nâ¯=â¯3) were calculated to be 0.02⯵M, 0.16⯵M, and 0.11⯵M, respectively. In addition, the method has been successfully applied to determine AA, DA, and UA in real samples, which provides potential applications in further sensing study.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Ácido Ascórbico
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Ácido Úrico
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Técnicas Biossensoriais
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Dopamina
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Urinálise
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Técnicas Eletroquímicas
Limite:
Humans
Idioma:
En
Revista:
Biosens Bioelectron
Assunto da revista:
BIOTECNOLOGIA
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
China