Electrochemical Sensor for Simple and Sensitive Determination of Hydroquinone in Water Samples Using Modified Glassy Carbon Electrode
This study addressed the use of manganese dioxide nanorods/graphene oxide nanocomposite (MnO<sub>2</sub> NRs/GO) for modifying a glassy carbon electrode (GCE). The modified electrode (MnO<sub>2</sub> NRs/GO/GCE) was used as an electrochemical sensor for the determination of h...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Biomedicines |
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| Online Access: | https://www.mdpi.com/2227-9059/11/7/1869 |
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| author | Parisa Karami-Kolmoti Hadi Beitollahi Sina Modiri |
| author_facet | Parisa Karami-Kolmoti Hadi Beitollahi Sina Modiri |
| author_sort | Parisa Karami-Kolmoti |
| collection | DOAJ |
| description | This study addressed the use of manganese dioxide nanorods/graphene oxide nanocomposite (MnO<sub>2</sub> NRs/GO) for modifying a glassy carbon electrode (GCE). The modified electrode (MnO<sub>2</sub> NRs/GO/GCE) was used as an electrochemical sensor for the determination of hydroquinone (HQ) in water samples. Differential pulse voltammetry (DPV), cyclic voltammetry (CV), and chronoamperometry were used for more analysis of the HQ electrochemical behavior. Analyses revealed acceptable electrochemical functions with lower transfer resistance of electrons and greater conductivity of the MnO<sub>2</sub> NRs/GO/GCE. The small peak-to-peak separation is an indication of a rapid electron transfer reaction. Therefore, this result is probably related to the effect of the MnO<sub>2</sub> NRs/GO nanocomposite on the surface of GCE. In the concentration range of 0.5 μM to 300.0 μM with the detection limit as 0.012 μM, there was linear response between concentration of HQ and the current. The selectivity of the modified electrode was determined by detecting 50.0 μM of HQ in the presence of various interferent molecules. At the end, the results implied the acceptable outcome of the prepared electrode for determining HQ in the water samples. |
| first_indexed | 2024-03-11T01:16:10Z |
| format | Article |
| id | doaj.art-000483b21934494485e3d64f75521212 |
| institution | Directory Open Access Journal |
| issn | 2227-9059 |
| language | English |
| last_indexed | 2024-03-11T01:16:10Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biomedicines |
| spelling | doaj.art-000483b21934494485e3d64f755212122023-11-18T18:26:09ZengMDPI AGBiomedicines2227-90592023-06-01117186910.3390/biomedicines11071869Electrochemical Sensor for Simple and Sensitive Determination of Hydroquinone in Water Samples Using Modified Glassy Carbon ElectrodeParisa Karami-Kolmoti0Hadi Beitollahi1Sina Modiri2Department of Chemistry, Graduate University of Advanced Technology, Kerman 76311-33131, IranEnvironment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman 76311-33131, IranPolymer Department, Graduate University of Advanced Technology, Kerman 76311-33131, IranThis study addressed the use of manganese dioxide nanorods/graphene oxide nanocomposite (MnO<sub>2</sub> NRs/GO) for modifying a glassy carbon electrode (GCE). The modified electrode (MnO<sub>2</sub> NRs/GO/GCE) was used as an electrochemical sensor for the determination of hydroquinone (HQ) in water samples. Differential pulse voltammetry (DPV), cyclic voltammetry (CV), and chronoamperometry were used for more analysis of the HQ electrochemical behavior. Analyses revealed acceptable electrochemical functions with lower transfer resistance of electrons and greater conductivity of the MnO<sub>2</sub> NRs/GO/GCE. The small peak-to-peak separation is an indication of a rapid electron transfer reaction. Therefore, this result is probably related to the effect of the MnO<sub>2</sub> NRs/GO nanocomposite on the surface of GCE. In the concentration range of 0.5 μM to 300.0 μM with the detection limit as 0.012 μM, there was linear response between concentration of HQ and the current. The selectivity of the modified electrode was determined by detecting 50.0 μM of HQ in the presence of various interferent molecules. At the end, the results implied the acceptable outcome of the prepared electrode for determining HQ in the water samples.https://www.mdpi.com/2227-9059/11/7/1869electrochemical sensinghydroquinonevoltammetrymodified electrodeMnO<sub>2</sub> NRs/GO nanocomposite |
| spellingShingle | Parisa Karami-Kolmoti Hadi Beitollahi Sina Modiri Electrochemical Sensor for Simple and Sensitive Determination of Hydroquinone in Water Samples Using Modified Glassy Carbon Electrode Biomedicines electrochemical sensing hydroquinone voltammetry modified electrode MnO<sub>2</sub> NRs/GO nanocomposite |
| title | Electrochemical Sensor for Simple and Sensitive Determination of Hydroquinone in Water Samples Using Modified Glassy Carbon Electrode |
| title_full | Electrochemical Sensor for Simple and Sensitive Determination of Hydroquinone in Water Samples Using Modified Glassy Carbon Electrode |
| title_fullStr | Electrochemical Sensor for Simple and Sensitive Determination of Hydroquinone in Water Samples Using Modified Glassy Carbon Electrode |
| title_full_unstemmed | Electrochemical Sensor for Simple and Sensitive Determination of Hydroquinone in Water Samples Using Modified Glassy Carbon Electrode |
| title_short | Electrochemical Sensor for Simple and Sensitive Determination of Hydroquinone in Water Samples Using Modified Glassy Carbon Electrode |
| title_sort | electrochemical sensor for simple and sensitive determination of hydroquinone in water samples using modified glassy carbon electrode |
| topic | electrochemical sensing hydroquinone voltammetry modified electrode MnO<sub>2</sub> NRs/GO nanocomposite |
| url | https://www.mdpi.com/2227-9059/11/7/1869 |
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