目的 建立同时测定国产米格列奈钙原料药中甲醇、乙醇、异丙醇、乙腈、二氯甲烷、正己烷、乙酸乙酯、四氢呋喃、三乙胺等有机溶剂残留量的顶空气相色谱法.方法 色谱柱为DB-624毛细管色谱柱(以6%氰丙基苯基-94%二甲基聚硅氧烷为固定液,60 m×0.53 mm,3μm),程序升温,进样口温度为220℃,检测器为火焰离子化检测器(FID),温度为250℃,载气为氮气,载气流速为2.0 mL/min,分流比为10:1,顶空加热温度为80℃,平衡时间为30 min.结果 甲醇、乙醇、异丙醇、乙腈、二氯甲烷、正己烷、乙酸乙酯、四氢呋喃、三乙胺的质量浓度分别在0.03~0.45 mg/mL,0.05~0.75 mg/mL,0.05~0.75 mg/mL,0.0041~0.0610 mg/mL,0.006~0.089 mg/mL,0.003~0.045 mg/mL,0.05~0.75 mg/mL,0.0073~0.1100 mg/mL,0.002~0.030 mg/mL范围内与峰面积线性关系良好(r均大于0.995);检测限分别为1.50,2.50,1.00,0.41,0.59,0.06,0.50,0.37,0.40μg/mL,定量限分别为3.00,5.00,2.50,2.00,1.20,0.15,1.00,1.50,0.99μg/mL;精密度试验的RSD分别为5.07%,5.46%,5.16%,5.14%,3.91%,4.77%,3.71%,3.75%,4.62%(n=6);平均加样回收率分别为98.73%,98.85%,99.46%,100.91%,95.67%,106.85%,102.35%,100.79%,102.53%,RSD分别为3.17%,3.31%,3.27
作者:李珉;侯金凤;刘海涛;车宝泉;李文东
来源:中国药业 2021 年 30卷 17期