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Evaluation of portable potentiostats for electrochemical measurements: Voltammetry and Impedance spectroscopy

Abdul Ghani, Muhammad Afiq and Nordin, Anis Nurashikin and Ab. Rahim, Rosminazuin and Gunawan, Teddy Surya and Mohd Zain, Zainiharyati (2022) Evaluation of portable potentiostats for electrochemical measurements: Voltammetry and Impedance spectroscopy. In: 2022 IEEE 8th International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA), 26-28 September 2022, Melaka.

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A potentiostat is needed to perform electrochemical measurements but lab-grade potentiostats are lacking portability. Portable potentiostats, μStat-i 400 DropSens, and Pico Development Kit are evaluated against labgrade potentiostat, Autolab PGSTAT302N. Evaluations are being done with voltammetry and impedance spectroscopy. A comparison of cyclic voltammetry and impedance spectroscopy had been done with a 10mM ferrocyanide solution. Slight differences were detected when the test was run on the screen-printed carbon electrode, but the differences are very small when tested with the gold electrode. Then, the evaluation continued with probe DNA, target sequences, and 10mM ferrocyanide solution with differential pulse voltammetry. The evaluation is being done using the screen-printed gold electrode. The result showed similar results across three potentiostats. The slight discrepancies in the evaluation are happening due to the limitation of the portable potentiostat. Differences in the technologies of different companies could result in discrepancies. Through this study, portable potentiostats have the potentials to compete with lab-grade potentiostats.

Item Type: Conference or Workshop Item (Invited Papers)
Additional Information: Joint publication with National Collaborator (UiTM, Dr. Norhayati)
Uncontrolled Keywords: voltammetry, impedance-spectroscopy, probe DNA, potentiostat, portable, DPV, CV, EIS
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices > TK7885 Computer engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User: Prof. Dr. Teddy Surya Gunawan
Date Deposited: 23 Dec 2022 09:44
Last Modified: 23 Dec 2022 09:44
URI: http://irep.iium.edu.my/id/eprint/101862

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