Bui Thi Phuong Quynh Byun, Ji Young Kim, Sang Hoon 2024-01-20T05:30:41Z 2024-01-20T05:30:41Z 2021-09-03 2015-12-31 0925-4005 https://pubs.kist.re.kr/handle/201004/124604 Nanoporous gold (NPG) thin films were found to be capable of directly and reliably sensing phenol and catechol using amperometric technique at neutral conditions without enzyme. The sensing of phenol and catechol was conducted on NPG based on their different electro-oxidation potentials. The NPG thin films exhibited not only good sensitivities but also large linear detection ranges in comparison with the current state of the art enzyme-based electrodes. They also had a good resistance against surface fouling, enabling detection at neutral conditions. A good selectivity over various organic and inorganic interfering agents was also recorded. In particular, although NPG appeared to be a good sensor for both phenol and catechol, it was found that the NPG was able to selectively determine catechol in the presence of phenol at an appropriate applied voltage. The achieved results offer potentially promising and simple non-enzymatic amperometric detection of phenolic compounds in industrial and environmental analyses using NPG thin film based electrodes. (C) 2015 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA PLATINUM THIN-FILMS ELECTROCHEMICAL DETECTION OXIDATION SENSOR HYDROQUINONE ELECTRODES BIOSENSOR Non-enzymatic amperometric detection of phenol and catechol using nanoporous gold Article 10.1016/j.snb.2015.06.067 1 SENSORS AND ACTUATORS B-CHEMICAL, v.221, pp.191 - 200 SENSORS AND ACTUATORS B-CHEMICAL 221 191 200 scie scopus 000362918100025 2-s2.0-84936866662 Chemistry, Analytical Electrochemistry Instruments & Instrumentation Chemistry Electrochemistry Instruments & Instrumentation Article PLATINUM THIN-FILMS ELECTROCHEMICAL DETECTION OXIDATION SENSOR HYDROQUINONE ELECTRODES BIOSENSOR Environmental sensors Nonenzymatic Amperometric Phenol Nanoporous gold