Sensitive and Simultaneous Determination of Hydroquinone and Catechol in Water Using an Anodized Glassy Carbon Electrode with Polymerized 2-(Phenylazo) Chromotropic Acid
Hydroquinone (HQ) and catechol (CT) are considered as environmental pollutants with high toxicity. We have developed a simple electrochemical sensor using an anodized glassy carbon electrode modified with a stable 2-(phenylazo) chromotropic acid- (CH-) conducting polymer (PCH/AGCE). The PCH/AGCE sen...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2019/2327064 |
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| author | Miao Zhang Chuang-ye Ge Ya-feng Jin Liang-bin Hu Hai-zhen Mo Xiao-bo Li Hao Zhang |
| author_facet | Miao Zhang Chuang-ye Ge Ya-feng Jin Liang-bin Hu Hai-zhen Mo Xiao-bo Li Hao Zhang |
| author_sort | Miao Zhang |
| collection | DOAJ |
| description | Hydroquinone (HQ) and catechol (CT) are considered as environmental pollutants with high toxicity. We have developed a simple electrochemical sensor using an anodized glassy carbon electrode modified with a stable 2-(phenylazo) chromotropic acid- (CH-) conducting polymer (PCH/AGCE). The PCH/AGCE sensor showed good electrocatalytic activity and reversibility towards the redox of HQ and CT in phosphate buffer solution (PBS, pH 7.0). The cyclic voltammetry (CV) in mixed solution of HQ and CT showed that the oxidation peaks of them became well resolved with a peak separation of 0.1 V. The detection limits of HQ and CT were 0.044 and 0.066 μM, respectively, in a wide linear response range of 1–300 μM for both. Moreover, the sensor displayed an excellent selectivity in the presence of common interferences. This study provided a simple, sensitive, and high recovery method for simultaneous and quantitative determination of HQ and CT in aqueous medium. |
| format | Article |
| id | doaj-art-4cf6012d24ec4eb4a52b50e4a2dfa0f8 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-4cf6012d24ec4eb4a52b50e4a2dfa0f82025-02-03T06:13:08ZengWileyJournal of Chemistry2090-90632090-90712019-01-01201910.1155/2019/23270642327064Sensitive and Simultaneous Determination of Hydroquinone and Catechol in Water Using an Anodized Glassy Carbon Electrode with Polymerized 2-(Phenylazo) Chromotropic AcidMiao Zhang0Chuang-ye Ge1Ya-feng Jin2Liang-bin Hu3Hai-zhen Mo4Xiao-bo Li5Hao Zhang6College of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, ChinaDepartment of Applied Chemistry, Konkuk University, Chungju 380-701, Republic of KoreaDepartment of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, ChinaCollege of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, ChinaCollege of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, ChinaDepartment of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, ChinaCollege of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, ChinaHydroquinone (HQ) and catechol (CT) are considered as environmental pollutants with high toxicity. We have developed a simple electrochemical sensor using an anodized glassy carbon electrode modified with a stable 2-(phenylazo) chromotropic acid- (CH-) conducting polymer (PCH/AGCE). The PCH/AGCE sensor showed good electrocatalytic activity and reversibility towards the redox of HQ and CT in phosphate buffer solution (PBS, pH 7.0). The cyclic voltammetry (CV) in mixed solution of HQ and CT showed that the oxidation peaks of them became well resolved with a peak separation of 0.1 V. The detection limits of HQ and CT were 0.044 and 0.066 μM, respectively, in a wide linear response range of 1–300 μM for both. Moreover, the sensor displayed an excellent selectivity in the presence of common interferences. This study provided a simple, sensitive, and high recovery method for simultaneous and quantitative determination of HQ and CT in aqueous medium.http://dx.doi.org/10.1155/2019/2327064 |
| spellingShingle | Miao Zhang Chuang-ye Ge Ya-feng Jin Liang-bin Hu Hai-zhen Mo Xiao-bo Li Hao Zhang Sensitive and Simultaneous Determination of Hydroquinone and Catechol in Water Using an Anodized Glassy Carbon Electrode with Polymerized 2-(Phenylazo) Chromotropic Acid Journal of Chemistry |
| title | Sensitive and Simultaneous Determination of Hydroquinone and Catechol in Water Using an Anodized Glassy Carbon Electrode with Polymerized 2-(Phenylazo) Chromotropic Acid |
| title_full | Sensitive and Simultaneous Determination of Hydroquinone and Catechol in Water Using an Anodized Glassy Carbon Electrode with Polymerized 2-(Phenylazo) Chromotropic Acid |
| title_fullStr | Sensitive and Simultaneous Determination of Hydroquinone and Catechol in Water Using an Anodized Glassy Carbon Electrode with Polymerized 2-(Phenylazo) Chromotropic Acid |
| title_full_unstemmed | Sensitive and Simultaneous Determination of Hydroquinone and Catechol in Water Using an Anodized Glassy Carbon Electrode with Polymerized 2-(Phenylazo) Chromotropic Acid |
| title_short | Sensitive and Simultaneous Determination of Hydroquinone and Catechol in Water Using an Anodized Glassy Carbon Electrode with Polymerized 2-(Phenylazo) Chromotropic Acid |
| title_sort | sensitive and simultaneous determination of hydroquinone and catechol in water using an anodized glassy carbon electrode with polymerized 2 phenylazo chromotropic acid |
| url | http://dx.doi.org/10.1155/2019/2327064 |
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