| Titre : |
Electrochemical method for quantitative determination of trace amounts of disperse dye in wastewater |
| Type de document : |
texte imprimé |
| Auteurs : |
Daniela P. Santos, Auteur ; Magno A. G. Trindade, Auteur ; Ricardo A. G. Oliveira, Auteur ; Marly E. Osugi, Auteur ; Alex R. Bianchi, Auteur ; Maria V. B. Zanoni, Auteur |
| Année de publication : |
2014 |
| Article en page(s) : |
p. 43-47 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Analyse électrochimique
Analyse quantitative (chimie)
Colorants
Diméthylformamide
Eaux usées -- Analyse
Voltampérométrie
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
The electrochemical behaviour of Disperse Red 13 dye at a glassy carbon electrode was investigated in both organic and aqueous organic mixtures. Best results were obtained in N,N-dimethylformamide/Britton–Robinson buffer (1:1, v/v), which displays a well-defined peak at -0.40 V (vs Ag/AgCl) owing to reduction of the protonated nitro group. This method can be successfully applied to the electroanalytical determination of Disperse Red 13 in a very simple and inexpensive way. All the differential pulse voltammetry parameters were optimised by using a glassy carbon electrode modified with poly(glutamic acid) films. The targeted analytical method presented a linear response from Disperse Red 13 concentrations between 2.5 × 10?7 and 3 × 10?6 mol l?1 (r = 0.997), with a detection limit of 1.5 × 10?8 mol l?1 and recoveries of 89.7–95.10% in water samples. Disperse Red 13 was successfully determined in textile industry wastewater by means of the proposed method after pre-extraction in a solid-phase extraction cartridge. |
| Note de contenu : |
- EXPERIMENTAL : Apparatus - Preparation of the modified glassy carbon electrode - Analysis of disperse red 13 in wastewater
- RESULTS AND DISCUSSION : Electrochemical reduction of disperse red 13 - Disperse red 13 electrochemical detection at a poly(glutamic acid) modified glassy carbon electrode - Analytical application |
| DOI : |
10.1111/cote.12059 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12059 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20358 |
in COLORATION TECHNOLOGY > Vol. 130, N° 1 (02/2014) . - p. 43-47
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Electrochemical method for quantitative determination of trace amounts of disperse dye in wastewater in COLORATION TECHNOLOGY, Vol. 130, N° 1 (02/2014)
