Partículas de CoO(OH) Dispersas em Pasta de Carbono Aplicado na Eletrooxidação de Compostos Fenólicos
In this work, particles of cobalt oxyhydroxide (III), CoO (OH), synthesized by alkaline precipitation were used in a carbon paste electrode modified [CPEM_CoO(OH)] for the detection of phenolic compounds (catechol, guiacol, pyrogallol and salicylic acid). The cobalt-based electrode acts as the elect...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Mato Grosso do Sul
2015-12-01
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| Series: | Orbital: The Electronic Journal of Chemistry |
| Subjects: | |
| Online Access: | https://periodicos.ufms.br/index.php/orbital/article/view/17839 |
| _version_ | 1797946781958406144 |
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| author | Janaína S. Bonini Filipe Quadros Mariani Eryza Guimarães de Castro Andressa Galli Rafael Marangoni Fauze Jacó Anaissi |
| author_facet | Janaína S. Bonini Filipe Quadros Mariani Eryza Guimarães de Castro Andressa Galli Rafael Marangoni Fauze Jacó Anaissi |
| author_sort | Janaína S. Bonini |
| collection | DOAJ |
| description | In this work, particles of cobalt oxyhydroxide (III), CoO (OH), synthesized by alkaline precipitation were used in a carbon paste electrode modified [CPEM_CoO(OH)] for the detection of phenolic compounds (catechol, guiacol, pyrogallol and salicylic acid). The cobalt-based electrode acts as the electron mediator, where the ion Co (III) acts effectively in the oxidation/reduction of analyte, via reductive dissolution. As a result, the modified carbon paste electrode [CPEM_CoO(OH)] exhibited good performance in the detection of phenolic compounds in a concentration range between 0 to 0.15 µmol L-1, with a limit of detection (LOD) of 10-8 mol L-1. The electrochemical studies were performed using the techniques of cyclic voltammetry and linear.
DOI: http://dx.doi.org/10.17807/orbital.v7i4.780
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| first_indexed | 2024-04-10T21:17:29Z |
| format | Article |
| id | doaj.art-76850e8c2aa04489a51014cfcba4b1ca |
| institution | Directory Open Access Journal |
| issn | 1984-6428 |
| language | English |
| last_indexed | 2024-04-10T21:17:29Z |
| publishDate | 2015-12-01 |
| publisher | Universidade Federal de Mato Grosso do Sul |
| record_format | Article |
| series | Orbital: The Electronic Journal of Chemistry |
| spelling | doaj.art-76850e8c2aa04489a51014cfcba4b1ca2023-01-20T11:03:12ZengUniversidade Federal de Mato Grosso do SulOrbital: The Electronic Journal of Chemistry1984-64282015-12-0174Partículas de CoO(OH) Dispersas em Pasta de Carbono Aplicado na Eletrooxidação de Compostos FenólicosJanaína S. Bonini0Filipe Quadros Mariani1Eryza Guimarães de Castro2Andressa Galli3Rafael Marangoni4Fauze Jacó Anaissi5Universidade Estadual do Centro-Oeste, UNICENTRO-PRUniversidade Estadual do Centro-Oeste, UNICENTRO-PRUniversidade Estadual do Centro-Oeste, UNICENTRO-PRUniversidade Estadual do Centro-Oeste, UNICENTRO-PRUniversidade Estadual do Centro-Oeste, UNICENTRO-PRUniversidade Estadual do Centro-Oeste, UNICENTRO-PRIn this work, particles of cobalt oxyhydroxide (III), CoO (OH), synthesized by alkaline precipitation were used in a carbon paste electrode modified [CPEM_CoO(OH)] for the detection of phenolic compounds (catechol, guiacol, pyrogallol and salicylic acid). The cobalt-based electrode acts as the electron mediator, where the ion Co (III) acts effectively in the oxidation/reduction of analyte, via reductive dissolution. As a result, the modified carbon paste electrode [CPEM_CoO(OH)] exhibited good performance in the detection of phenolic compounds in a concentration range between 0 to 0.15 µmol L-1, with a limit of detection (LOD) of 10-8 mol L-1. The electrochemical studies were performed using the techniques of cyclic voltammetry and linear. DOI: http://dx.doi.org/10.17807/orbital.v7i4.780 https://periodicos.ufms.br/index.php/orbital/article/view/17839cobalt oxyhydroxide (III)modified electrodeelectrochemical detectionphenolic compounds |
| spellingShingle | Janaína S. Bonini Filipe Quadros Mariani Eryza Guimarães de Castro Andressa Galli Rafael Marangoni Fauze Jacó Anaissi Partículas de CoO(OH) Dispersas em Pasta de Carbono Aplicado na Eletrooxidação de Compostos Fenólicos Orbital: The Electronic Journal of Chemistry cobalt oxyhydroxide (III) modified electrode electrochemical detection phenolic compounds |
| title | Partículas de CoO(OH) Dispersas em Pasta de Carbono Aplicado na Eletrooxidação de Compostos Fenólicos |
| title_full | Partículas de CoO(OH) Dispersas em Pasta de Carbono Aplicado na Eletrooxidação de Compostos Fenólicos |
| title_fullStr | Partículas de CoO(OH) Dispersas em Pasta de Carbono Aplicado na Eletrooxidação de Compostos Fenólicos |
| title_full_unstemmed | Partículas de CoO(OH) Dispersas em Pasta de Carbono Aplicado na Eletrooxidação de Compostos Fenólicos |
| title_short | Partículas de CoO(OH) Dispersas em Pasta de Carbono Aplicado na Eletrooxidação de Compostos Fenólicos |
| title_sort | particulas de coo oh dispersas em pasta de carbono aplicado na eletrooxidacao de compostos fenolicos |
| topic | cobalt oxyhydroxide (III) modified electrode electrochemical detection phenolic compounds |
| url | https://periodicos.ufms.br/index.php/orbital/article/view/17839 |
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