Aim To establish a HPLC method for the separation of the enantiomers of zolmitriptan. Methods The separations were performed on Chiralcel OJ column with hexane-ethanol-diethylamine（85：15：0.2） as mobile phase at a ...Aim To establish a HPLC method for the separation of the enantiomers of zolmitriptan. Methods The separations were performed on Chiralcel OJ column with hexane-ethanol-diethylamine（85：15：0.2） as mobile phase at a flow rate of 0.8 mL·min^-1 and detecttion wavelength of 227 nm at 35 ℃. Several related parameters for separation were studied. Results Baseline separation （Rs 〉 1.5） was easily obtained in the case, and the R-isomer impurity in zolmitriptan was determined. Conclusion The method developed in this study has been successfully applied for quality-control purposes.展开更多
文摘以双[-6-氧-(-3-脱氧柠檬酸单脂-4)]-β-环糊精键合全多孔型硅珠为HPLC手性固定相,以甲醇和三氟乙酸-三乙胺缓冲液为流动相,探究流动相比例、缓冲液浓度、缓冲液p H值、检测波长、色谱柱温和流速等条件对山莨菪碱二个外消旋体拆分效果的影响。在最佳分离条件(三氟乙酸浓度2mmol/L,p H值4.1,V_(甲醇)∶V_(缓冲液)=50%∶50%,流动相流速为0.5 m L/min,色谱柱温20℃,检测波长235nm)下山莨菪碱混合物被拆分为二个外消旋体,实现了基线分离,Rs达4.20;并得到了四个对映异构体拆分的结果。
文摘Aim To establish a HPLC method for the separation of the enantiomers of zolmitriptan. Methods The separations were performed on Chiralcel OJ column with hexane-ethanol-diethylamine（85：15：0.2） as mobile phase at a flow rate of 0.8 mL·min^-1 and detecttion wavelength of 227 nm at 35 ℃. Several related parameters for separation were studied. Results Baseline separation （Rs 〉 1.5） was easily obtained in the case, and the R-isomer impurity in zolmitriptan was determined. Conclusion The method developed in this study has been successfully applied for quality-control purposes.
