Open AccessSynthesis of Graphene Oxide-Nanozeolite Composite Electrode for Aspirin Analysis by Cyclic Voltammetry
Author(s) -
Pirim Setiarso,
Firma Inggriani
Publication year - 2020
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2020.22556
Subject(s) - graphene , horizontal scan rate , electrode , cyclic voltammetry , oxide , chemistry , composite number , detection limit , nuclear chemistry , inorganic chemistry , electrochemistry , materials science , nanotechnology , composite material , chromatography , organic chemistry
A graphene oxide-nanozeolite composite was prepared and empolyed as electrode for cyclicvoltammetric analysis of aspirin. Graphene oxide was synthesized with the improved Hummer method,while nanozeolite synthesized using a mechanical ball milling method. Cyclic voltammetric analysisof aspirin was influenced by several factors viz. the composition of working electrode, pH, depositiontime and scan rate. The optimized parameters of graphene oxide-nanozeolite composite electrode hasthe best composition at a ratio of 3:2:5 at pH of solution 4, deposition time at 5 s and scan rate at 100mV s-1. A recovery percentage of 99.61% having limit detection of electrode was 0.0611 ppm (0.002mM).