Improved method for the determination of ascorbic acid in beer by using high-performance liquid chromatography with electrochemical detection

被引：12
|
作者：
Madigan, D [1 ]
McMurrough, I [1 ]
Smyth, MR [1 ]
机构：
[1] DUBLIN CITY UNIV,SCH CHEM SCI,DUBLIN 9,IRELAND
来源：
ANALYTICAL COMMUNICATIONS | 1996年 / 33卷 / 01期
关键词：
D O I：
10.1039/ac9963300009
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A method for the determination of ascorbic acid in beer by using HPLC with dual electrode electrochemical detection is described. Ascorbic acid was separated by using ion suppression chromatography on a C-18 column and detected by a dual-electrode system consisting of a porous graphite high efficiency electrode followed in series by a glassy carbon amperometric electrode. It was easily detectable at sub-ppm levels in beer. The use of dual electrode detection provided a constant measurement of both peak purity and electrode efficiency.
引用
收藏
页码：9 / 10
页数：2
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