Wine analysis by 1D and 2D NMR spectroscopy

被引:37
作者
Kosir, I
Kocjancic, M
Kidric, J
机构
[1] Natl Inst Chem, SI-1000 Ljubljana, Slovenia
[2] Agr Inst Slovenija, SI-1000 Ljubljana, Slovenia
关键词
wine analysis; chemical composition; NMR spectroscopy; two dimensional experiments;
D O I
10.1051/analusis:1998118
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
We have measured 1D and 2D H-1 and C-13 NMR spectra of selected Slovenian wines. Partial assignment of H-1 and C-13 resonances of alanine. valine, leucine, isoleucine, proline, threonine, ethanol, glycerol, butyleneglycol, and of acetic, tartaric, lactic, succinic, and malic acids in the wine samples was carried out by the combination of homo- and heteronuclear experiments COSY, HSQC and HMBC with known spectra of individual compounds. The spectra of wines of different variety, vintage and geographical areas differ mainly in the intensity of particular signals but also in the appearance of some signals which offers the possibility to follow the variability in their chemical composition on the ground of H-1 and C-13 signals.
引用
收藏
页码:97 / 101
页数:5
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