title: Direct determination of acetic acid in strongly acidic hydrolysates of chitin and chitin-containing biological products by capillary gas chromatography.
abstract: Laboratory-made capillary columns with high effectiveness and inertness were used for the determination of N-acetyl groups in chitin-containing biological products by liberation of acetic acid in 4 M HCl hydrolysates. The quantitative gas chromatographic analysis is fast, requiring only 2 min, with good precision and accuracy. After a long working period of more than 1000 analyses the capillary column retained its high effectiveness and inertness.
authors.affiliation: Institute of Organic Chemistry, Bulgarian Academy of Sciences, Sofia.
authors.forename: G
authors.initials: G
authors.lastname: Stoev
authors.forename: A
authors.initials: A
authors.lastname: Velichkov
mesh_terms: D000085:Acetates / Q000032:analysis*; D019342:Acetic Acid; D000107:Acetylation; D002686:Chitin / Q000032:analysis*; D002849:Chromatography, Gas; D005944:Glucosamine / Q000737:chemistry; D006863:Hydrogen-Ion Concentration
chemical_list: D000085:Acetates; D002686:Chitin; D005944:Glucosamine; D019342:Acetic Acid