论文部分内容阅读
应用一阶导数光谱法测定复方苯甲酸软膏中水杨酸的含量，以３０７ｎｍ为测定波长，可排除基质及苯甲酸的干扰，快速简便。平均回收率为９９．９６％，ＲＳＤ为０．２２％．
The determination of salicylic acid in Compound Benzoic Acid Ointment by first derivative spectrophotometry can quickly and easily eliminate the interference of matrix and benzoic acid with the determination wavelength of 307nm. The average recovery was 99.96% with a RSD of 0.22%.