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目的:建立革除汞盐的非水电位滴定法测定盐酸地芬尼多含量的方法。方法:建立了以冰醋酸与醋酐(1:3)为溶剂的高氯酸非水电位滴定法测定盐酸地芬尼多的含量。结果:本法与《中国药典》2005年版二部方法测定结果一致。本法可代替原方法。结论:方法操作简单,准确可靠,可用于盐酸地芬尼多的含量测定。
Objective: To establish a method for the determination of phenanthridine hydrochloride by nonaqueous potentiometric titration of mercury salts. Methods: The determination of phenanthridine hydrochloride by potentiometric titration of perchloric acid with glacial acetic acid and acetic anhydride (1: 3) as solvent was established. Results: This method is consistent with the results of the two methods in 2005 edition of Chinese Pharmacopoeia. This law can replace the original method. Conclusion: The method is simple, accurate and reliable and can be used for the determination of phenylephrine hydrochloride.