Electrochemical sensor of multiwalled carbon nanotube electrode modified by 1-phenyl-3-methyl-4-orthofluoro benzoyl-5-pyrazolone for sensing dopamine
نویسندگان
چکیده
ABSTRACT. This work explicates a simple, rapid, and sensitive method for the electrochemical detection of dopamine (DOP) utilising 1-phenyl-3-methyl-4-orthofluorobenzoyl-5-pyrazolone (HPMoFBP)/multiwalled carbon nanotube (MWCNT) paste electrode (CPE). The behaviour DOP was performed through cyclic voltammetry square wave voltammetry. HPMoFBP/MWCNT showed higher current at lower potential oxidation compared to bare MWCNT. sensor's improved electrocatalytic activity observed detect in 1.0 x 10-1 M phosphate buffer saline (PBS) solution pH 8.0. A good linear regression analysis between electrical response concentration range 1 1000 µM. Under optimized experimental conditions, 10-7 has been determined as limit (LOD). sensor expressed considerable sensitivity towards without interference is successfully used determine hydrochloride injection.
 
 KEY WORDS: Electrochemical sensor, Dopamine, Pyrazolone, MWCNT, Voltammetry
 Bull. Chem. Soc. Ethiop. 2023, 37(4), 845-857. DOI: https://dx.doi.org/10.4314/bcse.v37i4.4
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ژورنال
عنوان ژورنال: Bulletin of The Chemical Society of Ethiopia
سال: 2023
ISSN: ['1011-3924', '1726-801X']
DOI: https://doi.org/10.4314/bcse.v37i4.4