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氯替泼诺中残留溶剂甲醇和乙醇的测定

Determination of methanol and ethanol remained in Loteprednol
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摘要 目的建立氯替泼诺中残留甲醇和乙醇的测定方法.方法应用气相色谱仪,氢火焰离子化检测器,检测器温度为250℃,进样口温度210℃,柱温120℃.结果样品中检出乙醇,未检出甲醇.甲醇的线性范围为0.155~0.464mg·ml-1,r=0.9999,回收率为97.4%,RSD=1.85%(n=6).乙醇的线性范围为0.254~0.762mg·ml 1,r=0.9999,回收率为100.5%,RSD=1.21%(n=6).结论该方法简单、准确. Objective Estbilsh a method to determine methanol and ethand remaining in loteprednol, Methods Chromatograph- gas was used, flame ionization detector temperature was 250℃ and injection port temperature was 210℃ ,the temperature of column was 120℃ .Results In the sample of loteprednol,only the ethanol was detected. The linear range of methanol was 0.155 -0.464mg·ml^-1, r = 0.9999, the average rate of methanol was 97.4%, RSD was 1.85%( n =6).The linear range of ethanol was 0.254-0.762mg·ml^-1, r =0.9999,the average recovery rate of ethanol was 100.5 %, RSD was 1.21% ( n =6).Conclusion The method is simple and accurate.
出处 《齐鲁药事》 2005年第11期673-674,共2页 qilu pharmaceutical affairs
关键词 气相色谱 氯替泼诺 甲醇 乙醇 GC Loteprednol methanol ethanol
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