转换曲线分光光度法测定止痒酊中水杨酸和苯酚的含量

Determination of salicylic acid and phenol in tinctura antipruritic by turnover curve spectrophotometry

采用转换曲线分光光度法，根据吸收度的加和性同时测定了止痒酊中水杨酸和苯酚的含量，测定波长范围为２５５～２７０ｎｍ。本方法简便，结果可靠。

Based on the additivity of absorbances, a turnover curve spectrophotometry was used for the determimation of salicylic acid and phenol in tinctura antipruritic in the range of wavelengths from 255nm to 265nm. The method was simple and reliable.