顶空气相色谱法同时测定艾司奥美拉唑镁原料药中6种有机溶剂的残留量
发布时间:2018-10-26 12:40
【摘要】:目的:建立同时测定艾司奥美拉唑镁原料药中甲醇、异丙醇、乙腈、二氯甲烷、乙酸乙酯、甲苯6种有机溶剂残留量的方法。方法:采用顶空气相色谱法。色谱柱为DB-624毛细管柱,程序升温,进样口温度为200℃,检测器为氢火焰离子化检测器,检测器温度为250℃,载气为氮气,氮气流速为2.0 mL/min,分流比为5∶1,顶空进样量为1 mL,顶空平衡温度为80℃,平衡时间为20 min。结果:甲醇、异丙醇、乙腈、二氯甲烷、乙酸乙酯、甲苯检测质量浓度线性范围分别为12.56~628.00μg/mL(r=0.999 7)、20.22~1 011.20μg/mL(r=0.999 9)、1.96~97.76μg/mL(r=0.999 7)、3.10~154.88μg/mL(r=0.999 8)、20.69~1 034.56μg/mL(r=0.999 8)、3.53~176.72μg/mL(r=0.999 8);定量限分别为1.00、0.91、0.47、0.93、0.41、0.35μg/mL,检测限分别为0.31、0.30、0.14、0.31、0.12、0.11μg/mL;精密度、稳定性、重复性试验的RSD3%;加样回收率分别为94.53%~101.29%(RSD=2.15%,n=9)、97.78%~103.42%(RSD=1.77%,n=9)、96.99%~105.76%(RSD=2.59%,n=9)、96.83%~102.05%(RSD=1.86%,n=9)、97.98%~101.13%(RSD=0.88%,n=9)、97.80%~102.40%(RSD=1.41%,n=9)。结论:该方法灵敏、准确,可用于艾司奥美拉唑镁原料药中甲醇、异丙醇、乙腈、二氯甲烷、乙酸乙酯、甲苯6种有机溶剂残留量的同时测定。
[Abstract]:Objective: to establish a method for simultaneous determination of methanol, isopropanol, acetonitrile, dichloromethane, ethyl acetate and toluene in esoprazole magnesium. Methods: headspace gas chromatography was used. The chromatographic column is DB-624 capillary column, programmed temperature, injection port temperature is 200 鈩,
本文编号:2295752
[Abstract]:Objective: to establish a method for simultaneous determination of methanol, isopropanol, acetonitrile, dichloromethane, ethyl acetate and toluene in esoprazole magnesium. Methods: headspace gas chromatography was used. The chromatographic column is DB-624 capillary column, programmed temperature, injection port temperature is 200 鈩,
本文编号:2295752
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