Simultaneous determination of levodopa and tryptophan using a modified glassy carbon electrode

Aflatoonian, Mohammad Reza; Tajik, Somayeh; Aflatoonian, Behnaz; Ekrami-Kakhki, Mehri-Saddat; Divsalar, Kouros; Sheikh Shoaie, Iran; Dourandish, Zahra; Sheikhshoaie, Mahdieh

doi:10.33945/SAMI/ECC.2020.4.8

Document Type : Original Research Article

Authors

¹ Neuroscience Research Center, Kerman University of Medical Sciences, Kerman, Iran# Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran

² Neuroscience Research Center, Kerman University of Medical Sciences, Kerman, Iran#Research Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran

³ Research Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran

⁴ Esfarayen University of Technology, Esfarayen, Iran

⁵ Neuroscience Research Center, Kerman University of Medical Sciences, Kerman, Iran

⁶ Department of Chemistry, Faculty of Science, Shahid Bahonar University of Kerman, Kerman 76175-133, Iran

⁷ Department of Mining Engineering, Shahid Bahonar University of Kerman, Kerman, Iran

10.33945/SAMI/ECC.2020.4.8

Abstract

This work discusses the development of a new sensor for simultaneous determination of levodopa and tryptophan. The proposed sensor was a glassy carbon electrode modified with V₂O₅ nanoparticles. Based on the excellent electrochemical properties of the modified electrode, a sensitive voltammetric method was used for individual and simultaneous determination of the levodopa and tryptophan in the aqueous solutions. The proposed method under the optimized conditions was utilized to determine the levodopa with linear range of 0.06–250.0 μM and detection limit of 0.02 μM (S/N=3). Finally, the applicability of the proposed sensor was verified by evaluation of levodopa and tryptophan in real sample.

Graphical Abstract

Keywords

References

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Eurasian Chemical Communications

Simultaneous determination of levodopa and tryptophan using a modified glassy carbon electrode

References

References

Volume 2, Issue 4
April 2020
Pages 505-515

Simultaneous determination of levodopa and tryptophan using a modified glassy carbon electrode

References

References

Volume 2, Issue 4April 2020Pages 505-515

Volume 2, Issue 4
April 2020
Pages 505-515