期刊
ELECTROPHORESIS
卷 27, 期 4, 页码 837-841出版社
WILEY
DOI: 10.1002/elps.200500228
关键词
aristolochic acid; capillary zone electrophoresis; Chinese herbs nephropathy; medicinal plants; micellar electrokinetic chromatography
In this study, a rapid MEKC method using 40mM sodium borate buffer containing 50 mM SDS as surfactant was developed for the analysis of aristolochic acid (AA) in Aristolochia plants. Baseline separation of AA-I and AA-II was achieved within 3 min with high separation efficiency, satisfactory sensitivity, repeatability, and recovery. Resolution between AA-I and AA-II is above 5 and great performance with higher than 200 000 theoretical plate numbers was obtained. The detection limits (based on 3 S/N) were both 1.0 mu g/mL. Two kinds of AA in 35 herbal samples of Aristolochia plants were successfully determined. The competition mechanism between P-CD and SDS was also investigated by changing the content ratio of P-CD and SDS.
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