| Titre : |
The detection of sperm oil in leather and oil mixtures |
| Type de document : |
texte imprimé |
| Auteurs : |
A. W. Landmann, Auteur ; W. S. Berwick, Auteur |
| Année de publication : |
1982 |
| Article en page(s) : |
p. 134-140 |
| Langues : |
Anglais (eng) |
| Catégories : |
Chimie analytique
Chromatographie en phase gazeuse
Cuirs et peaux -- Analyse
Huile de spermaceti
Mélanges (chimie)
Produits de nourriture du cuir
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
GLC represents a technique for recognising sperm oil and even its semi-quantitative determination by the use of an integrator. However, the technique must be used with care and intelligence. It is important to ensure that there is first of an a reasonably clear response. For reasons which are not absolutely clear, response to injection of the required amount of sample can be poor on occasions. Amplification of the signal can be used though this rules out any possibility of a quantitative evaluation. A low response considerably reduces the detection limt of sperm oil which is 5 % of the total extract but can be improved under good conditions and be worse if these conditions depart in the other direction. Considerable work on examination of leathers and mixed fatliquors confirms that sperm oil can be recognised at this level. |
| Note de contenu : |
- Towards an identification method for the presence of sperm oil
- Outline of the method
- Examples of oils and mixtures examined according to the proposed method
- Appendix : Method for the detection of sperm oil in fatliquors and leathers : Scope - Principle - Apparatus - Preparation of solution for injection - Procedure - Perkin-Elmer FII stainless steel columns - Procedure-Sigma 3 WCOT column SE-30 silicone gum coated - Notes
- Table 1 : Percentage Distribution of Fatty Acids According to Carbon Numbers
- Table 2 : Composition of Winterised Sperm Oil by Gas Liquid Chromatography |
| En ligne : |
https://drive.google.com/file/d/13EvivMp1tRFyhbeos6P8I_tG7N_VTeii/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34220 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 66 (Année 1982) . - p. 134-140
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The detection of sperm oil in leather and oil mixtures in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 66 (Année 1982)
