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呋喃西林麻黄素滴鼻剂(简称呋麻液,为医院常用制剂.其处方;每100ml 中含呋喃西林0.02g、盐酸麻黄素1.0g。呋哺西林的含量测定中国药典1963年版为重量法;医院制剂检验通常用碘量法,但含有盐酸麻黄素干扰呋喃西林的测定,本文根据呋喃类药物与间苯酚在碱性介质中能定最地显橙红的原理,经实验证实呋哺西林在400nm 波长处有最大吸收,当浓度在4～20μg/ml 范围时符合比尔定律,可进行比色测定.本法操作简便迅速、回收率试验结果比较满意,认为适合于医院制剂的含量测定。
Furacilin ephedrine nasal drops (referred to as furosemide solution, the hospital commonly used formulations. The prescription; containing 100ml nitrofurazone 0.02g, ephedrine hydrochloride 1.0g. Determination of furosemide Xilin Chinese Pharmacopoeia 1963 version of the weight; hospital preparations Test usually iodine method, but contains hydrochloric acid ephedrine interference nitrofuzone test, this paper based on furan drugs and m-phenol in alkaline medium can be set to the most orange-red principle confirmed by furosemide Xilin at 400nm wavelength Maximum absorption, when the concentration in the range of 4 ~ 20μg / ml in line with Beer’s Law, can be colorimetric determination of the method is simple and rapid operation, the recovery test results are more satisfactory, that is suitable for the determination of the content of the hospital preparations.