Application of infrared spectroscopy to the assessment of authenticity of tea

被引：32

作者：

Budinova, G ^{[1
]}

Vlacil, D ^{[1
]}

Mestek, O ^{[1
]}

Volka, K ^{[1
]}

机构：

[1] Inst Chem Technol, Dept Analyt Chem, CZ-16628 Prague 6, Czech Republic

来源：

TALANTA | 1998年 / 47卷 / 02期

关键词：

tea; infrared spectroscopy; soft independent modelling of class analogy; linear discriminant analysis;

D O I：

10.1016/S0039-9140(98)00055-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Diffusion reflectance fourier transform infrared spectroscopy in the mid-IR region was used to assess the authenticity of tea varieties. The differences between the spectra of 12 different tea varieties (seven black, two green, three semifermented grades) were sufficient to allow their discrimination by the soft independent modelling of class analogy classification method or linear discriminant analysis, despite a significant heterogeneity of the samples as revealed by variance analysis. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：255 / 260

页数：6

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