一阶导数光谱法测定维甲酸凝胶的含量

Determination of tretinoin in gel by the first derivative spectrophotometry

摘要: 目的　建立维甲酸凝胶的质控方法。方法　采用一阶导数光谱法在3 78nm处测定维甲酸的含量。结果　维甲酸的平均回收率为10 0 .3 7%。结论　所建立的方法适用于维甲酸凝胶剂的含量测定

Abstract: OBJECTIVE To establish a method of tretinoin quality controling. METHOD Tretinoin was determined by the first derivative spectrophotometry at 378nm.RESULTS The average recovery of tretinoin was 100.37%.CONCLUSION The established method is suitable f