一阶导数光谱法测定慕颜胶囊中维生素E的含量

Determination of the Content of Vitamin E in Muyan Capsule by First-Derivative Spectrophotometry

目的:建立测定慕颜胶囊中维生素E含量的方法。方法:采用一阶导数光谱法,在230nm波长处测定慕颜胶囊中维生素E的含量。结果:维生素E检测浓度的线性范围为14.98～24.96μg.mL-1(r=0.9998);平均回收率为100.1%(RSD=0.26%)。结论:本方法操作简便、快速,结果准确,可用于该制剂的含量测定。

OBJECTIVE： To determine vitamin E in muyan capsule. METHODS： The content of vitamin E in muyan capsule was determined by first- derivative spectrophotometry with detection wavelength at 230nm. RESULTS： The linear range of vitamin E was 14.98 ～24.96μg·mL^-1（ r = 0. 999 8） .The average recovery of vitamin E was 100.1% （RSD=0.26% ） . CONCLUSION ：The method is simple,rapid and accurate,and applicable for the determination of vitamin in muyan capsule.