PMID- 17165551 OWN - NLM STAT- MEDLINE DCOM- 20100608 LR - 20161018 IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 24 IP - 5 DP - 2006 Sep TI - [Separation of sitafloxacin epimers by capillary electrophoresis]. PG - 513-5 AB - Sitafloxacin epimers were separated by capillary zone electrophoresis using gamma-cyclodextrin (gamma-CD) and D-phenylalanine (D-Phe) as chiral selector. The effects of the concentrations of gamma-CD, D-Phe, Cu2+ and pH of buffer were investigated. An uncoated fused-silica capillary of 50 microm i.d. and 60 cm (effective length 52.5 cm) was used. The capillary temperature was maintained at 25 degrees C. Samples were injected under a pressure of 7 kPa for 5 s and separated at 15 kV. A baseline separation of sitafloxacin epimers was achieved with a background electrolyte of 10 mmol/L KH2PO4-K2HPO4(pH 4.5), 10 mmol/L CuSO4, 20 mmol/L gamma-CD and 10 mmol/L D-Phe. The linear range for sitafloxacin was 32 -400 mg/L (0.996). The relative standard deviations (RSDs) of migration time and peak area were less than 1.9% and 3.8% respectively. This method can be applied in qualitative and quantitative analysis for sitafloxacin epimers. FAU - Yuan, Pei AU - Yuan P AD - Pharmaceutical Department, Chongqing University of Medical Sciences, Chongqing 400016, China. ypll1971@163.com FAU - Lin, Lei AU - Lin L FAU - Fan, Qi AU - Fan Q FAU - Zeng, Linggao AU - Zeng L LA - chi PT - English Abstract PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Fluoroquinolones) RN - 9TD681796G (sitafloxacin) SB - IM MH - Electrophoresis, Capillary MH - Fluoroquinolones/*isolation & purification MH - Stereoisomerism EDAT- 2006/12/15 09:00 MHDA- 2010/06/09 06:00 CRDT- 2006/12/15 09:00 PHST- 2006/12/15 09:00 [pubmed] PHST- 2010/06/09 06:00 [medline] PHST- 2006/12/15 09:00 [entrez] PST - ppublish SO - Se Pu. 2006 Sep;24(5):513-5.