LC-MS/MS法同时测定艾司奥美拉唑钠原料药及其制剂中3种杂质的含量
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篇名: | LC-MS/MS法同时测定艾司奥美拉唑钠原料药及其制剂中3种杂质的含量 |
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摘要: | 目的:建立同时测定艾司奥美拉唑钠原料药及其制剂中杂质E、杂质Ⅰ和杂质Ⅳ含量的方法。方法:采用液相色谱-串联质谱法。色谱柱为Agela VenusiL MP C18,流动相为乙腈-水(梯度洗脱),流速为0.2 mL/min,柱温为35 ℃,进样量为1 μL;离子源为电喷雾离子源,检测方式为负离子模式,工作模式为多反应监测模式,用于定量分析的离子对分别为m/z 360.1→194.0(杂质E)、m/z 375.8→210.7(杂质Ⅰ)、m/z 330.2→312.1(杂质Ⅳ)。结果:杂质E、杂质Ⅰ、杂质Ⅳ检测质量浓度的线性范围分别为0.001 26~0.044 80 μg/mL(r=0.994 7)、0.001 34~0.045 2 μg/mL(r=0.992 8)、0.018 9~1.260 00 μg/mL(r=0.991 4);定量限分别为0.001 26、0.001 34、 0.018 9 μg/mL,检测限分别为0.000 41、0.000 44、0.006 3 μg/mL;精密度、重复性试验的RSD均小于4%,稳定性试验杂质E、杂质Ⅰ的RSD<10%(n=5),杂质Ⅳ的RSD>15%(n=7);加样回收率分别为87.69%~100.72%(RSD=4.29%,n=9)、90.04%~100.63%(RSD=3.67%,n=9)、93.58%~101.86%(RSD=2.66%,n=9)。结论:该方法准确、快速、灵敏、专属性强,可用于同时测定艾司奥美拉唑钠原料药及其制剂中3种杂质的含量。 |
ABSTRACT: | OBJECTIVE: To establish a method for simultaneous determination of impurity E, impurity Ⅰ and impurity Ⅳ in crude drug and preparation of esomeprazole sodium. METHODS: LC-MS/MS method was adopted. The separation was performed on Agela VenusiL MP C18 column with mobile phase consisted of acetonitrile-water (gradient elution) at the flow rate of 0.2 mL/min. The column temperature was 35 ℃, and the sample size was 1 μL; analytes were analyzed by electro-spray ionization (ESI) in the multiple reaction monitoring mode, negative ion. The precursors of production transitions m/z 360.1→194.0 (impurity E), m/z 375.8→210.7 (impurity Ⅰ), m/z 330.2→312.1 (impurity Ⅳ) were used to measure impurity. RESULTS: The linear range of impurity E, impurity Ⅰ and impurity Ⅳ were 0.001 26-0.044 80 μg/mL (r=0.994 7), 0.001 34-0.045 2 μg/mL (r=0.992 8) and 0.018 9-1.260 00 μg/mL (r=0.991 4). The limit of quantitation were 0.001 26, 0.001 34, 0.018 9 μg/mL; the detection limits were 0.000 41, 0.000 44, 0.006 3 μg/mL. RSDs of precision and reproducibility tests were all lower than 4%; RSDs of stability tests of impurity E and impurity Ⅰ were all lower than 10%(n=5), and that of impurity Ⅳ was higher than 15% (n=7). The average recoveries were 87.69%-100.72% (RSD=4.29%, n=9), 90.04%-100.63%(RSD=3.67%,n=9)and 93.58%-101.86%(RSD=2.66%,n=9). CONCLUSIONS: The method is accurate, rapid, sensitive, selective and suitable for the content determination of 3 impurities in crude drug and preparation of esomeprazole sodium. |
期刊: | 2019年第30卷第6期 |
作者: | 刘克锋,刘宇,王雪芹,赵杰 |
AUTHORS: | LIU Kefeng,LIU Yu,WANG Xueqin,ZHAO Jie |
关键字: | 艾司奥美拉唑钠;杂质E;杂质Ⅰ;杂质Ⅳ;液相色谱-串联质谱法;含量测定 |
KEYWORDS: | Esomeprazole sodium; Impurity E; Impurity Ⅰ; Impurity Ⅳ; LC-MS/MS; Content determination |
阅读数: | 727 次 |
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