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顶空气相色谱法测定盐酸法舒地尔中有机溶剂的残留量

West China Journal of Pharmaceutical Sciences(2011)

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Abstract
目的测定盐酸法舒地尔原料药中甲醇、二氯甲烷、异丙醚的残留量。方法采用顶空气相色谱法,以水为溶剂,用AT.OV-1301毛细管柱(30 m×0.32 mm×1.80μm)和FID检测器。结果原料药中3种有机溶剂均达到了完全分离,在考察的浓度范围内具有良好线性,最低检测浓度分别为1.5、2.4、0.8μg.mL-1,RSD均小于4.0%,平均回收率为97%~103%。结论所用方法灵敏度、准确度均达到有机溶剂残留量的检测要求,可用于盐酸法舒地尔原料药中3种残留溶剂的同时检测与分析。
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Key words
Residual organic solvent,Fasudil hydrochloride,Headspace gas chromatography
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