A Nano-Sepiolite Clay Electrochemical Sensor for the Rapid Electro–Catalytic Detection of Hydroquinone in Cosmetic Products
| Autor: | Zehra Yazan, Hayati Filik, Dilek Eskiköy Bayraktepe, Sevda Aydar |
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| Rok vydání: | 2018 |
| Předmět: |
voltammetry
cosmetic cream Materials science sepiolite clay Hydroquinone 020209 energy Inorganic chemistry 02 engineering and technology Square wave Dielectric spectroscopy Electrochemical gas sensor Carbon paste electrode lcsh:Chemistry chemistry.chemical_compound lcsh:QD1-999 chemistry Adsorptive stripping voltammetry 0202 electrical engineering electronic engineering information engineering carbon paste electrode General Earth and Planetary Sciences Cyclic voltammetry Voltammetry General Environmental Science |
| Zdroj: | Acta Chimica Slovenica, Vol 65, Iss 4, Pp 946-954 (2018) |
| ISSN: | 1580-3155 |
| DOI: | 10.17344/acsi.2018.4615 |
| Popis: | In this paper, a simple and sensitive electrochemical nano-sensor was developed for the analysis of hydroquinone based on sepiolite clay modified carbon paste sensor by using differential pulse adsorptive stripping voltammetry and square wave adsorptive stripping voltammetry. Surface morphology of sensors was characterized by using scanning electron microscopic technique, electrochemical impedance spectroscopy, and cyclic voltammetry. Electrochemical redox properties of hydroquinone were investigated by cyclic voltammetry. The oxidation peak current of hydroquinone in differential pulse and square wave adsorptive stripping voltammetry changes linearly in the concentration range of 0 .01‒700 µmolL -1 and 0 .01‒700 µmolL -1 , respectively. Excellent limit of detection (LOD) and limit of quantification (LOQ) values were found as 0.01096 µmolL -1 and 0.03654 µmolL -1 for differential pulse , and 0.01031 µmolL -1 and 0.03438 µmolL -1 for square wave adsorptive stripping voltammetry , respectively. Additionally, the newly proposed sensor was applied to the analysis of hydroquinone in cosmetic cream with satisfying results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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