[article]
| Titre : |
Derivative cathodic stripping voltammetry in the simultaneous determination of three textile dyes in aqueous solutions |
| Type de document : |
texte imprimé |
| Auteurs : |
LÃdia B Santos, Auteur ; Alexandre T. Paulino, Auteur ; Fernando S. Domingues, Auteur ; Thábata K. S. F. Souza, Auteur ; Vitor C. Almeida, Auteur ; Nilson E. Souza, Auteur ; Juliana C. G. Moraes, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 201-207 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Solutions aqueuses (chimie)
Teinture -- Fibres textiles
Voltampérométrie
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
Reactive dyes, such as Procion Yellow, Procion Red, and Procion Blue, were simultaneously determined in aqueous ternary solutions using derivative cathodic stripping voltammetry following adsorption on a hanging mercury drop electrode. An electrochemical cell containing Britton–Robinson buffer solution at pH 8 was used as the supporting electrolyte. The following experimental conditions were established: ?0.100 V deposition potential, 80 s deposition time, 50 mV pulse amplitude, 50 mV s?1 scan rate, and 0.40 mm2 maximum mercury drop size. A linear response was observed over the 0.630 × 10?3 to 1.050, 1.441 × 10?3 to 1.572, and 0.198 to 1.570 mg l?1 ranges for Procion Yellow, Procion Red, and Procion Blue respectively. The detection limits were 0.210 × 10?3, 0.480 × 10?3, and 0.066 mg l?1 respectively, with a relative standard deviation (n = 3) of 1.22%. The accuracy of the method was evaluated by derivative spectrophotometry, certifying the results as a function of proximity. All results were similar, indicating that derivative cathodic stripping voltammetry may be efficiently applied for the simultaneous determination of textile dyes in aqueous ternary solutions. |
| Note de contenu : |
- EXPERIMENTAL : Apparatus - Solutions - Voltammetric measurements - Electrochemical calibration method - Dyebath preparation - Statistical analysis and process efficiency
- RESULTS AND DISCUSSION : Experimental conditions for voltammetric measurements - Electrochemical reduction mechanisms for Procion yellow, Procion red, and Procion blue - Derivative voltammetry for ternary mixture of dyes - Accuracy, validation, and statistical figures of merit - Efficiency of dyeing process |
| DOI : |
10.1111/cote.12209 |
| En ligne : |
https://drive.google.com/file/d/1mHDnWNd2oRu4Vg1tdWRJKBGRxL2jCNDl/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26351 |
in COLORATION TECHNOLOGY > Vol. 132, N° 3 (06/2016) . - p. 201-207
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