Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

A carbon paste electrode modified with Al2O3-supported palladium nanoparticles for simultaneous voltammetric determination of melatonin, dopamine, and acetaminophen

Thu Jun 30 12:44:09 2022

(2019) A carbon paste electrode modified with Al2O3-supported palladium nanoparticles for simultaneous voltammetric determination of melatonin, dopamine, and acetaminophen. Microchimica Acta. p. 13. ISSN 0026-3672

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Abstract

The authors have modified a carbon paste electrode with Al2O3-supported palladium nanoparticles (PdNP@Al2O3) to obtain a sensor for simultaneous voltammetric determination of melatonin (MT), dopamine (DA) and acetaminophen (AC). The PdNP@Al2O3 was characterized by scanning electron microscopy and energy-dispersive X-ray spectra. The sensor can detect DA, AC, MT and their mixtures by giving distinct signals at working voltages of typically 236, 480 and 650 mV (vs. Ag/AgCl), respectively. Differential pulse voltammetric peak currents of DA, AC and MT increase linearly in the 50 nmol L-1 - 1.45 mmol L-1, 40 nmol L-1 -1.4 mmol L-1, and 6.0 nmol L-1 - 1.4 mmol L-1 concentration ranges. The limits of detection are 36.5 nmol L-1 for DA, 36.5 nmol L-1 for AC, and 21.6 nmol L-1 for MT. The sensor was successfully used to detect the analytes in (spiked) human serum and drug samples.

Item Type: Article
Creators:
CreatorsEmail
Soltani, N.UNSPECIFIED
Tavakkoli, N.UNSPECIFIED
Shahdost-fard, F.UNSPECIFIED
Salavati, H.UNSPECIFIED
Abdoli, F.UNSPECIFIED
Keywords: Electrochemical sensor Drug determination Simultaneous detection nanomolar simultaneous determination sensitive determination pd nanoparticles ascorbic-acid chemiluminescence composite sensor gold Chemistry
Divisions:
Page Range: p. 13
Journal or Publication Title: Microchimica Acta
Journal Index: ISI
Volume: 186
Number: 8
Identification Number: https://doi.org/10.1007/s00604-019-3541-3
ISSN: 0026-3672
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/2368

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