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A new methodology for the rapid determination of chromium in tanning floats / M. Dolors Borras in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 84, N° 2 (03-04/2000)

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[article]
inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 84, N° 2 (03-04/2000)

Titre :	A new methodology for the rapid determination of chromium in tanning floats
Type de document :	texte imprimé
Auteurs :	M. Dolors Borras, Auteur ; J. M. Morera, Auteur ; A. Rius, Auteur ; R. M. Romero, Auteur
Année de publication :	2000
Note générale :	Bibliogr.
Langues :	Anglais (eng)
Catégories :	Bains de tannage -- Teneur en chrome Chimie analytique
Index. décimale :	675.2 Préparation du cuir naturel. Tannage
Résumé :	A method for the determination of chromium in tanning floats is presented in this paper. The new method is based on spectrophotometry and multivariate calibration. Its main characteristics are rapidity and the fact that only deionized water is used as reagent. The sample is first diluted and then the visible spectrum is recorded. The spectrum is related to the chromium concentration in the sample through the use of a calibration function previously calculated by Partial Least Squares (PLS). The results obtained are comparable to those obtained by the classical methodology in terms of accuracy (3.3%). Systematic errors are not detected at a 95% confidence level.
Note de contenu :	- Theoretical background : Multivariate calibration - Experimental : Instrumentation - Software - Samples - Reagents and procedures - Table 1 : Reference and predicted concentration of chromic oxide for the 23 samples used. The relative error for each sample is also shown
En ligne :	https://drive.google.com/file/d/1fcdf4m8V2FG2V2BOYU6GoCDgOMo2QZmY/view?usp=drive [...]
Format de la ressource électronique :	Pdf
Permalink :	https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41462

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