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多波长吸收度比值差法是近年来提出的一种新的计算分光光度法。本文成功地应用该法测定其呋麻滴鼻液中的盐酸麻黄素含量,并同时用单波长法测定呋喃西林的含量。其平均回收率分别为100.26%(RSD=0.43%)和99.80%(RSD=0.48%)。
Multiwavelength absorbance ratio difference method is proposed in recent years a new calculation of spectrophotometry. In this paper, the method was successfully applied to determine the content of ephedrine hydrochloride in its furosemide nasal drops and meanwhile the content of nitrofurazone was determined by single wavelength method. The average recoveries were 100.26% (RSD = 0.43%) and 99.80% (RSD = 0.48%), respectively.