@article { , title = {Electroanalytical determination of gallic acid in red and white wine samples using cobalt oxide nanoparticles-modified carbon-paste electrodes.}, abstract = {Beverages like wines, have exhibited a high level of antioxidant capacity, specifically from compounds like Gallic acid (GA) and their derivatives. GA has shown great importance in the food industry and pharmaceutical industry as a food additive, anti-tumour, anti-viral, and anti-mutagenic agent. Red and white wines from the USA and Australia were electrochemically analysed for GA, using Cobalt oxide nanoparticles modified carbon paste electrode (CoO-NPs-CPE). The electrochemical studies demonstrated an efficient GA (10 mmol L-1) oxidation, with enhanced peak currents from 302 µA to about 405 µA (25 \% increase). The limit of detection (LOD) of the modified electrode was 1.52 x 10-4 mmol L-1 within the concentration range of 1 x 10-4 to 1 x 10-3 mmol L-1. The CoO-NPs-CPE was successfully used, for the quantitative analysis of GA in red and white wine, showing average recoveries of 97\% and 101\% respectively. Hence our electrode can be applied for GA quantification in wine matrices.}, doi = {10.1016/j.microc.2020.105668}, eissn = {1095-9149}, issn = {0026-265X}, issue = {part B}, journal = {Microchemical journal}, note = {INFO COMPLETE (Now published, checked and uploaded 19/11/2020 LM -- Info via SD alert 30/10/2020 LM) PERMISSION GRANTED (version = AAM; embargo = 12 months; licence = BY-NC-ND; SHERPA = http://v2.sherpa.ac.uk/id/publication/16583 30/10/2020 LM) DOCUMENT READY (AAM rec'd from from contact 5/11/2020 LM) ADDITIONAL INFO - Contact: Chrys Chikere; Nadimul Haque Faisal; Paul Kong Thoo Lin; Carlos Fernandez}, publicationstatus = {Published}, publisher = {Elsevier}, url = {https://rgu-repository.worktribe.com/output/979569}, volume = {160}, keyword = {Cobalt oxide nanoparticles, Carbon paste electrode, Phenolic acids, Gallic acid, Wine samples}, year = {2021}, author = {Chikere, Chrys O. and Hobben, Emma and Faisal, Nadimul Haque and Kong Thoo Lin, Paul and Fernandez, Carlos} }