✦ LIBER ✦

Determination of glycyrrhizin in Radix glycyrrhizae and its preparations by capillary zone electrophoresis

✍ Scribed by Guo-qing Zhang; Song-gang Ji; Yi-feng Chai; Yu-tian Wu; Xue-ping Yin

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 40 KB
Volume: 13
Category: Article
ISSN: 0269-3879
DOI: 10.1002/(sici)1099-0801(199910)13:6<407::aid-bmc901>3.0.co;2-o

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✦ Synopsis

A capillary zone electrophoresis method was set up for the separation and determination of glycyrrhizin in Chinese medicinal preparations. Concentrations of Na 2 B 4 O 7 were optimized, which showed that glycyrrhizin in the sample could be separated from interference in the running buffer of 30 mmol/L Na 2 B 4 O 7 . Using declofenac as internal standard, the simple method was linear in the range 25-300 mg/mL of glycyrrhizin, and good reproducibility was obtained. The extracts of Radix glycyrrhizae and its preparations could be injected directly for analysis without any pretreatment.

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