Titre : |
Some applications of thin layer chromatography linked to flame ionisation detection (TLC/FID) in the leather industry |
Type de document : |
texte imprimé |
Auteurs : |
Jean Poré, Auteur |
Année de publication : |
1982 |
Article en page(s) : |
p. 41-46 |
Langues : |
Anglais (eng) |
Catégories : |
Bains de trempe -- Analyse Chimie analytique Chromatographie sur couches minces Cuirs et peaux -- Analyse Cuirs et peaux -- Dégraissage Emulsions Esterification Huiles et graisses Produits de nourriture du cuir
|
Index. décimale : |
675 Technologie du cuir et de la fourrure |
Résumé : |
Thin layer plate chromatography can give valuable information on a qualitative level and in particular can help to improve our knowledge of natural organic compounds.
Compared with other methods of analysis, thin layer chromatography on silica or alumina has the advantage of separating familes of compounds without either destroying or modifying them.
In 1965 together with Celades this method was used to show the effects of various parameters on fatty spue formation.
Two examples of this technique are given, the first dealing with the constitution of fatliquors, the other concerned with fat extracted from leathers.
Other methods such as gas chromatography will certainly yield more searching information, but for the beginner and even sometimes, it must be recognised, for the specialist this can present a mass of data which it is difficult to appreciate readily.
Sadly, despite the numerous methods put forward for thin layer plate chromatography, the analysis cannot be made quantitatively because, to our knowledge densitometry readings do not give sufficiently precise information.
However, during recent years thin layer chromatography linked to flame ionisation detection has yielded interesting results. |
Note de contenu : |
- 1. Analysis of fats
- 2. Analysis of aqueous or organic media during manufacture
- 3. Analysis of fats extracted from leather
- 4. Analysis of spues
- Fig. 1 : Comparison of some fatliquor oils
- Fig. 2 : Comparison of some fat extracts
- Fig. 3 : Kinetics of the esterifcation
- Fig. 4 : Kinetics of the reaction of methyl oleate with glycerol at 200°C from TLC/FID data
- Fig. 5 : Chromatograms comparing sperm oil and replacement sperm oil
- Fig. 6 : Chromatogram of a fatliquor emulsion during use
- Fig. 7 : TLC/FID chromatograms of a leather garment degreasing bath
- Fig. 8 : Investigation of spues and fat extracts
- Table 1 : Comparative constitution of sulphated sperm oil and replacement oils
- Table 2 : Composition of an emulsion of a mixture of sulphated fish and sperm oils during fatliquoring a chrome leather (60°C)
- Table 3 : Composition of a leather garment degreasing bath during use
- Table 4 : Constitution of the fats extracted from a chrome retanned leather
- Table 5 : Analysis of fats extracted from a leather fatliquored with a mixture of mineral waxes and solid fats |
En ligne : |
https://drive.google.com/file/d/1Is5EKI_-sz0zzAe77CQF0ENL57ZFgyqV/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34209 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 66 (Année 1982) . - p. 41-46