Preparation of A Magnetic Nanosensor Based on Cobalt Ferrite Nanoparticles for The Electrochemical Determination of Methyldopa in The Presence of Uric Acid.
Comb Chem High Throughput Screen
; 23(10): 1023-1031, 2020.
Article
em En
| MEDLINE
| ID: mdl-32436826
ABSTRACT
AIM AND OBJECTIVE:
Methyldopa is one of the medications that is used for the treatment of hypertension. Therefore, the determination of methyldopa in the presence of other biological components is essential. In this work, a promising electrochemical sensor based on CoFe2O4 magnetic nanoparticles modified glassy carbon electrode (CoFe2O4/GCE) was developed for electrochemical determination of methyldopa in the presence of uric acid. Cobalt ferrite nanoparticles were synthesized via chemical method. MATERIALS ANDMETHODS:
Characterizing the CoFe2O4 was investigated by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), transmission electron microscope (TEM), and cyclic voltammetry techniques.RESULTS:
Under the optimal experimental conditions, the current response of the electrochemical sensor obtained with differential pulse voltammetry was increased linearly in the concentration range from 1.45 to 15.1 µmol L-1 with the detection limit of 1.07 µmol L-1 for methyldopa. Also, by using the proposed method, methyldopa and uric acid could be analyzed in a mixture independently. The difference in peak potential for analytes is about 150 mV.CONCLUSION:
The present sensor was successfully applied for the determination of methyldopa in the presence of uric acid in biological samples and the pharmaceutical samples with satisfactory results.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ácido Úrico
/
Compostos Férricos
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Técnicas Biossensoriais
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Cobalto
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Nanopartículas
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Técnicas Eletroquímicas
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Metildopa
Limite:
Humans
Idioma:
En
Revista:
Comb Chem High Throughput Screen
Assunto da revista:
BIOLOGIA MOLECULAR
/
QUIMICA
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Irã