https://scholars.lib.ntu.edu.tw/handle/123456789/581572
標題: | Fabrication of an extremely cheap poly(3,4-ethylenedioxythiophene) modified pencil lead electrode for effective hydroquinone sensing | 作者: | Lu J.-Y Yu Y.-S Chen T.-B Chang C.-F Tamulevi?ius S Erts D Wu K.C.-W Gu Y. KEVIN CHIA-WEN WU |
關鍵字: | Chemical detection; Cyclic voltammetry; Fabrication; Graphite; Metabolites; Phenols; Electrochemical response; FT-IR spectrum; Human disease; Linear correlation; Linear sweep voltammetry; Multiple measurements; Poly-3 ,4-ethylenedioxythiophene; Voltammetry methods; Electrochemical electrodes | 公開日期: | 2021 | 卷: | 13 | 期: | 3 | 起(迄)頁: | 343114 | 來源出版物: | Polymers | 摘要: | Hydroquinone (HQ) is one of the major deleterious metabolites of benzene in the human body, which has been implicated to cause various human diseases. In order to fabricate a feasible sensor for the accurate detection of HQ, we attempted to electrochemically modify a piece of common 2B pencil lead (PL) with the conductive poly(3,4-ethylenedioxythiophene) or PEDOT film to construct a PEDOT/PL electrode. We then examined the performance of PEDOT/PL in the detection of hydroquinone with different voltammetry methods. Our results have demonstrated that PEDOT film was able to dramatically enhance the electrochemical response of pencil lead electrode to hydroquinone and exhibited a good linear correlation between anodic peak current and the concentration of hydroquinone by either cyclic voltammetry or linear sweep voltammetry. The influences of PEDOT film thickness, sample pH, voltammetry scan rate, and possible chemical interferences on the measurement of hydroquinone have been discussed. The PEDOT film was further characterized by SEM with EDS and FTIR spectrum, as well as for stability with multiple measurements. Our results have demonstrated that the PEDOT modified PL electrode could be an attractive option to easily fabricate an economical sensor and provide an accurate and stable approach to monitoring various chemicals and biomolecules. ? 2021 by the authors. Licensee MDPI, Basel, Switzerland. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099936492&doi=10.3390%2fpolym13030343&partnerID=40&md5=706534b5d9432fab9681c5dbd93b890c https://scholars.lib.ntu.edu.tw/handle/123456789/581572 |
ISSN: | 20734360 | DOI: | 10.3390/polym13030343 | SDG/關鍵字: | Chemical detection; Cyclic voltammetry; Fabrication; Graphite; Metabolites; Phenols; Electrochemical response; FT-IR spectrum; Human disease; Linear correlation; Linear sweep voltammetry; Multiple measurements; Poly-3 ,4-ethylenedioxythiophene; Voltammetry methods; Electrochemical electrodes |
顯示於: | 化學工程學系 |
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