DETERMINATION OF CHITIN ACETYLATION DEGRE E BY INFRARED-SPECTROSCOPY

Authors
GLAZUNOV VP ODINOKOV SE
Citation
Vp. Glazunov et Se. Odinokov, DETERMINATION OF CHITIN ACETYLATION DEGRE E BY INFRARED-SPECTROSCOPY, Bioorganiceskaa himia, 21(11), 1995, pp. 881-884
Citations number
23
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Bioorganiceskaa himia → ACNP
ISSN journal
01323423
Volume
21
Issue
11
Year of publication
1995
Pages
881 - 884
Database
ISI
SICI code
0132-3423(1995)21:11<881:DOCADE>2.0.ZU;2-I
Abstract
A method for determination of the degree of chitin acetylation by IR s pectroscopy of the films pre pared from a solution of chitin N-trifluo roacetate in hexafluoroisopropanol was developed. For this purpose, fr ee NH2-groups of chitin were trifluoroacetylated by trifluoroacetic an hydride in hexafluoroisopropanol; and a degree of trifluoroacylated am ino groups was determined using the absorption band of trifluoroacetam ide (1720 cm(-1)). The method proposed is applicable for the hexafluor oisopropanol-soluble chitin samples.