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本文提出采用反相离子对高效液相层析法测定伪盐酸麻黄碱(Ⅰ)和盐酸丙吡咯啶(Ⅱ)或扑尔敏混合物的糖浆和片剂。经8个实验室的协作者对12个样品进
In this paper, the syrup and tablets of pseudoephedrine (I) and propylpyrolidin (II) or chlorpheniramine mixtures were determined by reversed-phase ion-pair high performance liquid chromatography. Twelve samples were entered by collaborators in eight laboratories