Two methods for the rapid determination of 10-HDA in royal jelly with the def-frential spectrophotometry and the first derivative spectrophotometry are presented. 本文提出了用差示分光光度法和一階導數分光光度法測定蜂王漿中蜂王酸的含量。
The first order derivative spectrophotometry was used for determination of ofloxacin in its gel.The interference of other ingredients can be eliminated. 采用一階導數分光光度法直接測定氧氟沙星凝膠劑的含量，能消除其它組分的干擾。
