| Titre : |
Alkaline hydrolysis combined with stir-bar sorptive extraction or sonication for the determination of banned azo dyes in leather |
| Type de document : |
texte imprimé |
| Auteurs : |
L.-H. Ahlström, Auteur ; L. Mathiasson, Auteur ; Eva Joo, Auteur ; L. Rowshanzamir, Auteur |
| Année de publication : |
2007 |
| Article en page(s) : |
p. 280-287 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Two approaches based on alkaline hydrolysis, in combination with either stir-bar sorptive extraction (SBSE) or sonication, were developed for the determination of banned azo dyes in bovine leather. All dyes were determined indirectly by measuring their corresponding harmful amines, formed after chemical reduction. Quantification was performed by employing standard addition methodology to compensate for analyte losses due to sample preparation (e.g. incomplete extraction). The mean recoveries (n=3) obtained by employing the SBSE and sonication procedures were 100 percent (RSD=26 percent) and 114 percent (RSD=11 percent), respectively. The linearity of the standard addition curves obtained was reasonable [SBSE (mean R2=0.980) and sonication (mean R2=0.997)]. Both procedures were very simple to perform and provided clean LC-UV chromatograms. Taking into account the repeatability, sonication was considered the preferred alternative. |
| En ligne : |
https://drive.google.com/file/d/1TqiVu4KmycU7VC8VOxhmF7ZNU2bYr0zn/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3344 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CII, N° 9 (09/2007) . - p. 280-287
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