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Micromachines
Volume 13
Issue 1
10.3390/mi13010088
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Article

Synthesis and Characterization of GO/ZIF-67 Nanocomposite: Investigation of Catalytic Activity for the Determination of Epinine in the Presence of Dobutamine

by
Mahboobeh Shahsavari
1,
Mojtaba Mortazavi
2,
Somayeh Tajik
3,*,
Iran Sheikhshoaie
1 and
Hadi Beitollahi
4,*
1
Department of Chemistry, Faculty of Science, Shahid Bahonar University of Kerman, Kerman 7616914111, Iran
2
Biotechnology Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman 7631885356, Iran
3
Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman 7616913555, Iran
4
Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman 7631885356, Iran
*
Authors to whom correspondence should be addressed.
Micromachines 2022, 13(1), 88; https://doi.org/10.3390/mi13010088
Submission received: 1 November 2021 / Revised: 24 December 2021 / Accepted: 3 January 2022 / Published: 6 January 2022
(This article belongs to the Special Issue Nanomaterials Modified Electrochemical Sensors)
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Abstract

In this study, we prepared graphene oxide (GO)/ZIF-67 nanocomposites. Therefore, GO/ZIF-67 nanocomposites were used as a modifier on a screen-printed electrode (GO/ZIF-67/SPE) for studying the electrochemical behavior of epinine in phosphate buffer saline (PBS) at pH 7.0 with voltammetry techniques. The GO/ZIF-67/SPE showed greater electrocatalytic activities than the bare SPE. As a result, the GO/ZIF-67/SPE was utilized for additional electrochemical examinations. The epinine concentration determination was in the range 9.0 × 10−8 M to 5.0 × 10−4 M, and the limit of detection (LOD) as well as the limit of quantification (LOQ) equaled 2.0 and 6.6 nM, respectively. From the scan rate study, the oxidation of epinine was found to be diffusion-controlled, and the simultaneous detection of epinine and dobutamine were well achieved with the differential pulse voltammetric (DPV) technique. Moreover, the stability and reproducibility of epinine at the GO/ZIF-67/SPE was studied, and the use of the GO/ZIF-67/SPE to detect epinine and dobutamine in real samples was furthermore successfully demonstrated.
Keywords: epinine; dobutamine; voltammetric sensors; screen printed electrode; GO/ZIF-67 nanocomposite epinine; dobutamine; voltammetric sensors; screen printed electrode; GO/ZIF-67 nanocomposite

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MDPI and ACS Style

Shahsavari, M.; Mortazavi, M.; Tajik, S.; Sheikhshoaie, I.; Beitollahi, H. Synthesis and Characterization of GO/ZIF-67 Nanocomposite: Investigation of Catalytic Activity for the Determination of Epinine in the Presence of Dobutamine. Micromachines 2022, 13, 88. https://doi.org/10.3390/mi13010088

AMA Style

Shahsavari M, Mortazavi M, Tajik S, Sheikhshoaie I, Beitollahi H. Synthesis and Characterization of GO/ZIF-67 Nanocomposite: Investigation of Catalytic Activity for the Determination of Epinine in the Presence of Dobutamine. Micromachines. 2022; 13(1):88. https://doi.org/10.3390/mi13010088

Chicago/Turabian Style

Shahsavari, Mahboobeh, Mojtaba Mortazavi, Somayeh Tajik, Iran Sheikhshoaie, and Hadi Beitollahi. 2022. "Synthesis and Characterization of GO/ZIF-67 Nanocomposite: Investigation of Catalytic Activity for the Determination of Epinine in the Presence of Dobutamine" Micromachines 13, no. 1: 88. https://doi.org/10.3390/mi13010088

APA Style

Shahsavari, M., Mortazavi, M., Tajik, S., Sheikhshoaie, I., & Beitollahi, H. (2022). Synthesis and Characterization of GO/ZIF-67 Nanocomposite: Investigation of Catalytic Activity for the Determination of Epinine in the Presence of Dobutamine. Micromachines, 13(1), 88. https://doi.org/10.3390/mi13010088

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