HPLC法测定富马酸替诺福韦二吡呋酯原料药和胶囊中的有关物质
发布时间:2018-07-11 21:37
本文选题:高效液相色谱法 + 富马酸替诺福韦二吡呋酯 ; 参考:《中国药房》2015年06期
【摘要】:目的:建立测定富马酸替诺福韦二吡呋酯原料药和胶囊中有关物质的方法。方法:采用高效液相色谱法。色谱柱为Eclipse XDB-C18,流动相为甲醇-0.05%磷酸溶液(40∶60,V/V)和甲醇(梯度洗脱),检测波长为260 nm,流速为1.0 ml/min,柱温为40℃,进样量为20μl。结果:已知杂质替诺福韦单吡呋酯浓度在2.515~20.120μg/ml范围内与峰面积呈良好的线性关系(r=0.999 9);检测限为3.75μg/ml,定量限为12.50 ng/ml;精密度、稳定性、重复性试验的RSD分别为0.42%、2.00%、2.67%。按自身对照法测得替诺福韦单吡呋酯含量的结果偏高。结论:该方法操作简便、专属性强、灵敏度高,可用于富马酸替诺福韦二吡呋酯原料药和胶囊中有关物质的测定。
[Abstract]:Objective: to establish a method for the determination of the related substances in tenofovir Fumarate dipyrifuroxime difuroxime and its capsules. Methods: high performance liquid chromatography was used. The chromatographic column was Eclipse XDB-C18. The mobile phase consisted of methanol-0.05% phosphoric acid solution (40: 60 V / V) and methanol (gradient elution). The detection wavelength was 260 nm, the flow rate was 1.0 ml / min, the column temperature was 40 鈩,
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