[article]
| Titre : |
Determination of TCMTB and other fungicides in leather |
| Type de document : |
texte imprimé |
| Auteurs : |
Joaquim Font, Auteur ; M. Reyes, Auteur ; Sara Cuadros, Auteur ; Anna Bacardit, Auteur ; Agusti Marsal, Auteur |
| Année de publication : |
2011 |
| Article en page(s) : |
p. 341-348 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Antifongiques
Cuir
Thiocyano-méthylthiobenzotiazole
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The new ISO 13365:2011 develops a test method for the determination of the content of the preservative agents 2-(thiocyanomethylthio)-benzothiazole (TCMTB), 4-chloro-3-methylphenol (PCMC), 2-phenylphenol (OPP) and 2-Octyl-3(2H)-isothiazolone (OIT) in leather by liquid chromatography. The simultaneous determination of the fungicides TCMTB, PCMC, OPP, OIT, and also 2-mercaptobenzothiazol (MBT) and 3-iodo-2-propynyl-butylcarbamate (IPBC) in leather samples was carried out by liquid chromatography (HPLC) with diode array ultraviolet detection. The sample preparation and extraction step was performed following the new ISO 13365 Standard. The mobile phase was 0.1% formic acid in water (A) : 0.1% formic acid in acetonitrile (B). Gradient: 60% B, 6 min isocratic, then linear to 95% B in 9 min. The chromatographic detection introduced only a minor change with respect to the Standard: a photo diode array detector was used instead of a single wavelength ultraviolet one, thereby improving the reliability of the identifications and the sensitivity of the quantification. It has been ensured that 2,4,6-trichlorophenol (TCP) and pentachlorophenol (PCP) not interfere in the determination. The leather fortifications of 30 and 300 mg/kg yielded average TCMTB recoveries of 94% and 99%, respectively. The recoveries of the other fungicides were similar. The targeted fungicides were determined in 40 samples of commercial leather. Residues of TCMTB were found in 90% of samples. In summary, the new ISO 13365:2011 Standard provides a quick and reliable method not only for the determination of the four molecules that are within the scope of the Standard but also for other fungicides such as IPBC and MBT. |
| Note de contenu : |
- EXPERIMENTAL : Instrumentation - Materials - Samples - Procedures
- RESULTS AND DISCUSSION : Limits of detection and quantification - Linearity, recovery and precision - Selection of wavelength of detection - Analysis of commercial samples |
| En ligne : |
https://drive.google.com/file/d/19XjQ5s3y5T5kEoC4Y9iPRhX1M6Hvfu-4/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12523 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVI, N° 11 (11/2011) . - p. 341-348
[article]
|
Aller sur edunet
Accueil
Determination of TCMTB and other fungicides in leather in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 11 (11/2011)
