PYROLYSIS-GAS CHROMATOGRAPHY ION-TRAP DETECTION OF POLYPHENOLS (VEGETABLE TANNINS) - PRELIMINARY-RESULTS

被引：72

作者：

GALLETTI, GC ^{[1
]}

REEVES, JB ^{[1
]}

机构：

[1] USDA,RUMINANT NUTR LAB,BELTSVILLE,MD 20705

来源：

ORGANIC MASS SPECTROMETRY | 1992年 / 27卷 / 03期

关键词：

D O I：

10.1002/oms.1210270313

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Tannins from sorghum grains with high and low tannin content, from grape skins and seeds and from apple pomace were analysed by pyrolysis/gas chromatography/ion-trap detector mass spectrometry. Pyrolysis at 600-degrees-C produced catechol as a characteristic fragment of condensed tannins, and other phenolic compounds related to the lignified tissues. Catechol was also the main fragment in the pyrogram of catechin, a monomeric constitutent of condensed tannins. Mass spectral data and relative quantifications of the pyrograms of several samples are provided. Quantitative data are discussed in terms of reproducibility and linearity of response and are compared with the results of a spectrophotometric assay for tannins.

引用

页码：226 / 230

页数：5

共 15 条

[1]

BATESMITH EC, 1953, CHEM IND-LONDON, P377

[2] ELECTROCHEMICAL DETECTION IN THE HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY OF POLYPHENOLS (VEGETABLE TANNINS) [J].