Simultaneous capillary GC of acids and sugars as their silyl(oxime) derivatives: Quantitation of chlorogenic acid, raffinose, and pectin substances
作者:
Sándor Tisza,
Ibolya Molnár‐Perl,
Mendel Friedman,
Pál Sass,
期刊:
Journal of High Resolution Chromatography
(WILEY Available online 1996)
卷期:
Volume 19,
issue 1
页码: 54-58
ISSN:0935-6304
年代: 1996
DOI:10.1002/jhrc.1240190110
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: Optimization of GC conditions;Sugar analysis;Acid analysis;Chlorogenic acid;Raffinose;Pectin decomposition products;Galacturonic acid;Arabinose
数据来源: WILEY
摘要:
AbstractOur GC‐MS method for the simultaneous quantitation of sugars and acids as their silyl(oxime) derivatives, from one solution by one injection, has been extended to the reproducible determination of high molecular weight compounds sensitive to decomposition yet requiring a high evaporation temperature (e.g.chlorogenic acid and rffinose) and for the quantitation of the decomposition products of pectin (i.e., for the determination of galacturonic acid at low ng levels in the presence of a 10–100 fold excess of glucose eluting just before the acid). The optimized GC procedure has been used for quantitation of the sugar and acid (including chlorogenic acid) composition of potato samples, and for the determination of the increasing amount of the decomposition products of pectin substances in apple pulp after different storage ti
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