Graphene Oxide-Paraffin-Nanobentonite as Working Electrode for Cyclic Voltammetry Analysis for Nicotinic Acid

Pirim Setiarso* and Nerry Puspita Sari

Laboratory of Analytical Chemistry, Department of Chemistry, Faculty of Mathematics and Science, State University of Surabaya, Surabaya, Indonesia

*Corresponding author: E-mail: pirimsetiarso@unesa.ac.id

Abstract

The composition of graphene oxide (GO):paraffin:nanobentonite electrode was optimized to acquire the optimal working electrode to analyze nicotinic acid under the optimum conditions through cyclic voltammetry. Graphene oxide was synthesized from graphite by employing the improved Hummer method. Bentonite was synthesized using the sonothermal method. The ratio of GO:paraffin:nanobentonite electrodes of 3:3:4 provided the optimal voltammogram. The results indicated that the composition of the comparative working electrodes of GO-modified nanobentonite was best 3:3:4 with a good peak recovery averaged value of 96.16%.

Keywords

Graphene oxide, Cyclic voltammetry, Nicotinic acid, Paraffin, Nanobentonite.

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