DETERMINATION OF SULFITE AND ASCORBIC-ACID BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY WITH ELECTROCHEMICAL DETECTION

被引：57

作者：

LEUBOLT, R

KLEIN, H

机构：

[1] OSTERREICH BRAU AG,QUAL ASSURANCE & DEV,POSCHACHERSTR 35,A-4020 LINZ,AUSTRIA

[2] AUSTRIAN BEVERAGE INST,A-1182 VIENNA,AUSTRIA

来源：

JOURNAL OF CHROMATOGRAPHY | 1993年 / 640卷 / 1-2期

关键词：

D O I：

10.1016/0021-9673(93)80190-J

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A rapid HPLC method with electrochemical detection for the determination of free and total sulphite and ascorbic acid in beer and other beverages is presented. Interferences of these compounds are discussed, in addition to the behaviour in buffer solutions of different pH. Only a dilution step is required before injecting the sample into the chromatographic system. To obtain better specificity for these compounds, two different working electrodes (platinum for sulphite and carbon glass for ascorbic acid) with distinct potentials are used.

引用

收藏

页码：271 / 277

页数：7

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