Analysis of beverages by capillary electrophoresis

被引：45

作者：

Walker, JC ^{[1
]}

Zaugg, SE ^{[1
]}

Walker, EB ^{[1
]}

机构：

[1] WEBER STATE COLL,CTR CHEM TECHNOL,OGDEN,UT 84408

来源：

JOURNAL OF CHROMATOGRAPHY A | 1997年 / 781卷 / 1-2期

关键词：

soft drinks; food analysis; aspartame; benzoate; caffeine;

D O I：

10.1016/S0021-9673(97)00532-3

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Rapid analysis of carbonated beverages by capillary electrophoresis (CE) allows the simultaneous determination of aspartame, benzoic acid and caffeine in 2 min using 20 mM glycine buffer at pH 9.0 and direct detection at 215 nm. The rapid determination of these compounds with minimal sample preparation offers an excellent method for evaluating stability and shelf-life of commercial products. This method is easily adapted to the analysis of these substances in other aqueous-based consumer products. (C) 1997 Elsevier Science B.V.

引用

页码：481 / 485

页数：5

共 14 条

[11] Investigation of a pulsed-laser thermo-optical absorbance detector for the determination of food preservatives separated by capillary electrophoresis [J].