摘要
目的建立RP-HPLC法测定注射用埃索美拉唑钠的有关物质。方法采用Inerstil ODS-3色谱柱(150mm×4.6 mm,5μm),以乙腈-磷酸盐缓冲液(pH=7.4)-硫酸氢四丁基铵溶液(26:69:5)为流动相,柱温30℃,流速1.0 m L·min-1,检测波长为280 nm。结果主成分与各杂质之间良好分离,杂质A、B溶液冷藏避光24 h稳定,杂质C不稳定。奥美拉唑浓度在0.063 3-2.110 8μg·mL^-1(r=1.000)、杂质A浓度在0.146 5-1.953 8μg·mL^-1(r=1.000)、杂质B浓度在0.158 7-1.983 5μg·mL^-1(r=0.999 9)、杂质C浓度在0.057 6-3.838 8μg·mL^-1(r=0.999 6)与峰面积呈良好的线性关系。3种杂质的平均回收率均在91%-105%,RSD均〈5%,均符合要求。结论本方法可用于注射用埃索美拉唑钠的质量控制。
Objective To establish an RP-HPLC method to determine the related substances in esomeprazole sodium for injection. Methods The determination was performed on a Inerstil ODS-3 column(150 mm×4.6 mm, 5 μm), with a mobile phase consisting of a mixture of acetonitrile and phosphate buffer(p H = 7.4) and tetrabutylammonium hydrogen sulfate. The column temperature was 30 ℃ at 1.0 mL·min^- 1 and the detective wavelength was 280 nm. Results The related substances were completely separated from the main constituent. Impurity A and B were stable in 24 h under the condition of frozen dark, but impurity C was not stable. Omeprazole and impurity A, B and C had good linearity at 0.063 3- 2.110 8 μg·mL^- 1(r = 1.000), 0.146 5- 1.953 8 μg·mL^- 1(r = 1.000), 0.158 7- 1.983 5 μg·mL^- 1(r = 0.999 9), 0.057 6- 3.838 8 μg·mL^- 1(r = 0.999 6) respectively. The recoveries were at 91%- 105%, andRSDs were less than 5%, which could be meet the requirements. Conclusion The method can be used for the quality control of esomeprazole sodium for injection.
出处
《中南药学》
CAS
2014年第11期1131-1135,共5页
Central South Pharmacy
基金
省市与企业合作项目(编号:F-12-160-9-00)