一阶导数光谱法测定对氨基苯甲酸的含量

A First Derivative Spectrometric Method Was Developed For The Determination of The Para Aminobenzoic Acid(PABA)

利用结构简单的752S分光光度计,辅助Origin软件运用一阶导数光谱法分析盐酸普鲁卡因中的降解产物对氨基苯甲酸。根据回归方程A=0.002 1C+0.000 5,R=0.998 6,标准偏差为1.21%。

A first derivative spectrometric method was developed for the determination of the para aminobenzoic acid（PABA）.The calibration graph is A=0.0021C＋0.0005,with the linear regression correlative coefficient is 0.9986 and the relative standard deviation（RSD） of 1.21%.