Eletrodo Modificado com [CoO(OH)] Coloidal Aplicado na Detecção de Ácido Oxálico
In this work, we used a chemically modified electrode with cobalt oxyhydroxide in colloidal form as an electrochemical sensor for oxalic acid. Initial experiments were performed in different electrolytes (LiOH, NaOH e KOH), that better defined electrochemical response in medium NaOH solution [0.5 mo...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidade Federal de Mato Grosso do Sul
2015-06-01
|
| Series: | Orbital: The Electronic Journal of Chemistry |
| Subjects: | |
| Online Access: | https://periodicos.ufms.br/index.php/orbital/article/view/17879 |
| _version_ | 1797946773314994176 |
|---|---|
| author | Andréia Stadnik Elisângela M. Caldas Andressa Galli Fauze J. Anaissi |
| author_facet | Andréia Stadnik Elisângela M. Caldas Andressa Galli Fauze J. Anaissi |
| author_sort | Andréia Stadnik |
| collection | DOAJ |
| description | In this work, we used a chemically modified electrode with cobalt oxyhydroxide in colloidal form as an electrochemical sensor for oxalic acid. Initial experiments were performed in different electrolytes (LiOH, NaOH e KOH), that better defined electrochemical response in medium NaOH solution [0.5 mol.L-1]. From measurements of cyclic voltammetry and square wave voltammetry for quantification of oxalic acid responses electroanalytical was obtained for concentrations in order 10-5-10-6 mol L-1. The detection limits (2.52x10-5 mol.L-1) and quantification (7.55x10-6 mol.L-1) were significantly better for measurements performed by square wave voltammetry. The CME-Co has potential application as a sensor for the measurement of oxalic acid and redox species.
DOI: http://dx.doi.org/10.17807/orbital.v7i2.572
|
| first_indexed | 2024-04-10T21:16:18Z |
| format | Article |
| id | doaj.art-60613645fb5f49f689d44aaa9368f200 |
| institution | Directory Open Access Journal |
| issn | 1984-6428 |
| language | English |
| last_indexed | 2024-04-10T21:16:18Z |
| publishDate | 2015-06-01 |
| publisher | Universidade Federal de Mato Grosso do Sul |
| record_format | Article |
| series | Orbital: The Electronic Journal of Chemistry |
| spelling | doaj.art-60613645fb5f49f689d44aaa9368f2002023-01-20T11:04:54ZengUniversidade Federal de Mato Grosso do SulOrbital: The Electronic Journal of Chemistry1984-64282015-06-0172Eletrodo Modificado com [CoO(OH)] Coloidal Aplicado na Detecção de Ácido OxálicoAndréia Stadnik0Elisângela M. Caldas1Andressa Galli2Fauze J. Anaissi3Universidade Estadual do Centro-Oeste do ParanáUniversidade Federal do Rio Grande do SulUniversidade Estadual do Centro-Oeste do ParanáUniversidade Estadual do Centro-Oeste, UNICENTRO-PRIn this work, we used a chemically modified electrode with cobalt oxyhydroxide in colloidal form as an electrochemical sensor for oxalic acid. Initial experiments were performed in different electrolytes (LiOH, NaOH e KOH), that better defined electrochemical response in medium NaOH solution [0.5 mol.L-1]. From measurements of cyclic voltammetry and square wave voltammetry for quantification of oxalic acid responses electroanalytical was obtained for concentrations in order 10-5-10-6 mol L-1. The detection limits (2.52x10-5 mol.L-1) and quantification (7.55x10-6 mol.L-1) were significantly better for measurements performed by square wave voltammetry. The CME-Co has potential application as a sensor for the measurement of oxalic acid and redox species. DOI: http://dx.doi.org/10.17807/orbital.v7i2.572 https://periodicos.ufms.br/index.php/orbital/article/view/17879cobalt oxy-hydroxideelectrochemical techniquesdetectionoxalic acid |
| spellingShingle | Andréia Stadnik Elisângela M. Caldas Andressa Galli Fauze J. Anaissi Eletrodo Modificado com [CoO(OH)] Coloidal Aplicado na Detecção de Ácido Oxálico Orbital: The Electronic Journal of Chemistry cobalt oxy-hydroxide electrochemical techniques detection oxalic acid |
| title | Eletrodo Modificado com [CoO(OH)] Coloidal Aplicado na Detecção de Ácido Oxálico |
| title_full | Eletrodo Modificado com [CoO(OH)] Coloidal Aplicado na Detecção de Ácido Oxálico |
| title_fullStr | Eletrodo Modificado com [CoO(OH)] Coloidal Aplicado na Detecção de Ácido Oxálico |
| title_full_unstemmed | Eletrodo Modificado com [CoO(OH)] Coloidal Aplicado na Detecção de Ácido Oxálico |
| title_short | Eletrodo Modificado com [CoO(OH)] Coloidal Aplicado na Detecção de Ácido Oxálico |
| title_sort | eletrodo modificado com coo oh coloidal aplicado na deteccao de acido oxalico |
| topic | cobalt oxy-hydroxide electrochemical techniques detection oxalic acid |
| url | https://periodicos.ufms.br/index.php/orbital/article/view/17879 |
| work_keys_str_mv | AT andreiastadnik eletrodomodificadocomcooohcoloidalaplicadonadeteccaodeacidooxalico AT elisangelamcaldas eletrodomodificadocomcooohcoloidalaplicadonadeteccaodeacidooxalico AT andressagalli eletrodomodificadocomcooohcoloidalaplicadonadeteccaodeacidooxalico AT fauzejanaissi eletrodomodificadocomcooohcoloidalaplicadonadeteccaodeacidooxalico |