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本文采用一阶导数光谱法不经分离直接测定百日咳Ⅱ号合剂中磷酸可待因的含量。该法简便,快速且可消除吐根糖浆和颠茄酊中生物碱的干扰。其平均回收率为99.90%,变导系数为0.45%。
In this paper, first-order derivative spectroscopy was used to directly determine the content of codeine phosphate in pertussis Ⅱ mixture without separation. The method is simple, fast and eliminates the interference of alkaloids in the Ivoganosal and Tazo tincture. The average recovery rate was 99.90%, the conductivity coefficient of 0.45%.