二阶导数紫外光谱法测定镇咳宁糖浆中盐酸麻黄碱的含量  

Determination of ephedrine hydrochloric acid in Zhenkening Tangjiang by second derivative ultraviolet spectrum

作　　者：张伟英 

机构地区：[1]浙江东阳市人民医院,东阳322100

出　　处：《中国现代应用药学》1998年第5期50-51,共2页Chinese Journal of Modern Applied Pharmacy

摘　　要：目的:测定镇咳宁糖浆中盐酸麻黄碱的含量.方法:采用二阶导数紫外光谱法,读取盐酸麻黄碱在214.2±1nm波长吸收度.结果:线性范围为19.44-68.04μg/Ml(r=0.9993),回收率为10.2%,RSD为1.9%.OBJECTIVE: To determine the content of ephedrine hydrochloric acid in Zhenkening Tangjiang. METHODS: Determine the absorptivity of ephedrine hydrochloric acid at the wavelength of 214. 2 ± 1nm by second derivative ultraviolet spectrum.RESULTS:Linear range was 19.44 - 68.04μg/ml(r = 0.9993).The recovery was 100. 2%, RSD was 1.9%. CONCLUSION:The method is simple and of accuracy.

关 键 词：二阶导数紫外光谱法 镇咳宁糖浆 盐酸麻黄碱 

分 类 号：R286.0[医药卫生—中药学]