Simultaneous determination of multiple constituents in real beer samples of different origins by capillary zone electrophoresis

被引：21

作者：

Cortacero-Ramírez, S

Segura-Carretero, A ^{[1
]}

Cruces-Blanco, C

Romero-Romero, M

Fernández-Gutiérrez, A

机构：

[1] Univ Granada, Fac Sci, Dept Analyt Chem, E-18071 Granada, Spain

[2] Grp Cervezas Alhambra, Res Labs, Granada 18010, Spain

来源：

ANALYTICAL AND BIOANALYTICAL CHEMISTRY | 2004年 / 380卷 / 5-6期

关键词：

capillary zone electrophoresis; multicomponent determination; beers;

D O I：

10.1007/s00216-004-2806-8

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Simultaneous determination of alcohols, amines, amino acids, flavonoids, and purine and pyrimidine bases in bottled beer samples directly without any pre-treatment was carried out by capillary zone electrophoresis with diode-array detection. Electrolyte conditions such as pH, composition and concentration of the buffer, working voltage and type and time of injection were checked. The best separation of the cited analytes was achieved in 70 mM sodium borate solution and pH 10.25. The detection limits were from 2.1 to 5.6 mg L-1 for the 18 compounds studied. The developed method is rapid, sensitive and quantitative and has been applied to seven types of international bottled beers of different origins bought locally.

引用

收藏

页码：831 / 837

页数：7

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