Application of capillary zone electrophoresis for analyzing biotin in pharmaceutical formulations - A comparative study

被引：23
|
作者：
Schiewe, J [1 ]
Gobel, S [1 ]
Schwarz, M [1 ]
Neubert, R [1 ]
机构：
[1] UNIV HALLE WITTENBERG, INST PHARMACEUT & BIOPHARMACEUT, D-06120 HALLE, GERMANY
来源：
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS | 1996年 / 14卷 / 04期
关键词：
biotin analysis; capillary zone electrophoresis; spectrophotometry; determination of sulphur content; drug analysis; pharmaceutical formulations;
D O I：
10.1016/0731-7085(95)01641-4
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The detection limit and reproducibility of capillary zone electrophoresis (CZE) measurement of biotin were compared to those of a spectrophotometric method and those of the determination of the sulphur content by combustion of the biotin sample followed by coulometric titration of the formed SO2. Drug analysis showed that all three methods gave consistent results and were suitable for the determination of biotin. CZE was found to be the best method for the determination of pharmaceutical formulations containing biotin because of its high separation efficiency, short analysis time, ease of instrumentation and sample preconditioning, and good precision.
引用
收藏
页码：435 / 439
页数：5
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