Direct determination of acetic acid in strongly acidic hydrolysates of chitin and chitin-containing biological products by capillary gas chromatography

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...

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Bibliographic Details
Published inJournal of chromatography Vol. 538; no. 2; p. 431
Main Authors Stoev, G, Velichkov, A
Format Journal Article
LanguageEnglish
Published Netherlands 1991
Subjects
Acetates - analysis
Acetic Acid
Acetylation
Chitin - analysis
Chromatography, Gas
Glucosamine - chemistry
Hydrogen-Ion Concentration
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Summary: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.
DOI:10.1016/S0021-9673(01)88864-6