双波长分光光度法测定苯海拉明麻黄碱滴鼻液的含量
Determination of diphenhydramine and ephedrine nasal drops by dual-wavelength spectrometry.
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摘要: 目的 建立苯海拉明麻黄碱滴鼻液中盐酸苯海拉明和盐酸麻黄碱的含量测定方法。方法 采用双波长分光光度法消除组份间干扰进行含量测定。结果 方法的线性关系良好,盐酸苯海拉明平均回收率为100.29%,RSD=0.82 (n=9),盐酸麻黄碱平均回收率为 99.92%,RSD=0.90 (n=9).结论 本法简便、快速、准确。Abstract: OBJECTIVE To develop a method for determinating the contents of diphenhydramine hydrochloride and ephedrine hydrochloride in nasal drops.METHODS The dual-wavelength spectrophotometric method was used for eliminating matual interference.RESULTS The method was linear and reproducible.The average recovery was 100.29%, RSD=0.82(n=9) for diphenhydramine hydrochloride and 99.92%, RSD=0.90(n=9) for ephedrine hydrochloride respectively.CONCLUSION The method was simple,rapid and accurate.
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