反相高效液相色谱法测定塞克硝唑片中塞克硝唑的含量

Determination of Secnidazole in Secnidazole Tablets by RP-HPLC

目的:建立以反相高效液相色谱法测定塞克硝唑片中塞克硝唑含量的方法。方法:色谱柱为VP -ODSC18,流动相为乙腈-0.05mol/L磷酸二氢钾-三乙胺(15∶85∶0.4) ,检测波长为311nm ,流速为0.8ml/min。结果:塞克硝唑进样量在0.166μg～0.832μg 范围内线性关系良好(r=0.9999) ,平均回收率为99.84 % (RSD=1.05 % ,n=15)。结论:本方法简便、准确、灵敏度高、重现性好,可用于塞克硝唑原料或制剂的含量测定与质量控制。

OBJECTIVE:To determine the contents of secnidazole in secnidazol e tablets by RP-HPLC.METHODS:The chromatographic column was VP-ODS C 18 with acetonirile-0.05mol/L potassium dihydrogen phosphate-triethylamine(15∶85∶0.4)as the mobile phase,the detection wavelength was311nm and the flow rate was0.8ml/min.RESULTS:There was a good linear relationship when the sample size was within the range of0.166μg～0.832μg(r=0.9999),the average reˉcovery was99.84%(RSD=1.05%,n=15).CONCLUSION:The method is simple and accurate,sensible and reproducible,which can be used for the assaying of both the raw materials and preparations and the quality control of secnidazole tablets.