PMID- 15627280 OWN - NLM STAT- MEDLINE DCOM- 20051121 LR - 20161124 IS - 0269-3879 (Print) IS - 0269-3879 (Linking) VI - 19 IP - 5 DP - 2005 Jun TI - Non-aqueous capillary electrophoresis for simultaneous separation and determination of three major active components in traditional medicinal preparations. PG - 369-74 AB - A simple and sensitive non-aqueous capillary electrophoresis method has been developed for simultaneous assay of three bioactive components (puerarin, daidzein and wogonin) in three traditional medicinal preparations for the first time. Optimum separation of the analytes was obtained on a 47 cm x 75 microm i.d. capillary using a non-aqueous buffer system of 20% acetonitrile, 25 mm ammonium acetate and apparent pH 9.00, with applied voltage and capillary temperature of 20 kV and 16 degrees C, respectively. The relative standard deviations (RSDs) of the migration times and the peak areas of the three analytes were in the ranges 2.5--4.0% and 3.2--3.9%, respectively. Detection limits of puerarin, daidzein and wogonin were 0.090, 0.145 and 0.090 microg mL(-1), respectively. In the tested concentration range, good linear relationships (correlation coef fi cients: 0.9998 for puerarin, 0.9998 for daidzein and 0.9978 for wogonin) between peak areas and concentrations of the analytes were observed. This method has been successfully applied to simultaneous determination of the three bioactive components with recoveries from 91.0 to 114.0%. CI - (c) 2004 John Wiley & Sons, Ltd. FAU - Li, Cunhong AU - Li C AD - Department of Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China. FAU - Zhang, Jiyou AU - Zhang J FAU - Chen, Anjia AU - Chen A FAU - Xie, Jianping AU - Xie J FAU - Chen, Xingguo AU - Chen X FAU - Hu, Zhide AU - Hu Z LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Biomed Chromatogr JT - Biomedical chromatography : BMC JID - 8610241 RN - 0 (Acetates) RN - 0 (Acetonitriles) RN - 0 (Drugs, Chinese Herbal) RN - 0 (Flavanones) RN - 0 (Isoflavones) RN - 6287WC5J2L (daidzein) RN - POK93PO28W (wogonin) RN - RRE756S6Q2 (ammonium acetate) RN - Y4S76JWI15 (Methanol) RN - Z072SB282N (acetonitrile) RN - Z9W8997416 (puerarin) SB - IM MH - Acetates MH - Acetonitriles MH - Drugs, Chinese Herbal/*chemistry MH - Electrophoresis, Capillary/*methods MH - Flavanones/*analysis/*isolation & purification MH - Hydrogen-Ion Concentration MH - Isoflavones/*analysis/*isolation & purification MH - Methanol MH - Reproducibility of Results MH - Temperature EDAT- 2005/01/01 09:00 MHDA- 2005/12/13 09:00 CRDT- 2005/01/01 09:00 PHST- 2005/01/01 09:00 [pubmed] PHST- 2005/12/13 09:00 [medline] PHST- 2005/01/01 09:00 [entrez] AID - 10.1002/bmc.459 [doi] PST - ppublish SO - Biomed Chromatogr. 2005 Jun;19(5):369-74. doi: 10.1002/bmc.459.