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出 处:《中南药学》2007年第2期105-107,共3页Central South Pharmacy
基 金:国家高技术产业发展项目(湘发改[2004]251号)
摘 要:目的建立HPLC法测定地红霉素在其肠溶片中的含量。方法采用Hypersil BDS C18柱(200mm×4.6mm,5μm);流动相为乙腈-磷酸盐缓冲液(取1.41g磷酸二氢钾与6.91g磷酸氢二钾,加水1000mL溶解后,过滤,即得)-甲醇(44:37:19);检测波长为205nm;柱温40℃。结果地红霉素在0.8~4.7mg·mL^-1浓度与峰面积呈良好的线性关系(r=0.9999),平均回收率为99.5%,RSD为0.31%(n=9)。结论方法简便、快速、灵敏、准确。Objective To establish an HPLC method for determining dirithromycin in its enteric-coated tablets. Methods The Hypersil BDS C18 Column (200 min×4. 6 mm, 5 μm) was used with the mobile phase of acetonitrile phosphate buffer ( 1.41 g potassium dihydrogenphosphate and 6.91 g potassium phosphate dibasic dissolve and filtrate in 1 000 mL water ) -methanol (44 : 37 :19) at the detection wavelength of 205 nm. The column temperature was 40 ℃. Results Good linearity was found within 0. 8-4.7 mg · mL^- 1 (r=0. 999 9), and the average recovery was 99.5% with RSD of 0.31% (n=9). Conclusion The method is simple, rapid, sensitive and accurate.
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