epitorma

例句：

1. 1. The drug was found to have a racemic mixture of active and inactive components.
   该药物被发现具有活性和无效成分的外消旋混合物。
2. 2. The enantiomers of the drug were separated using chromatography.
   该药物的对映异构体通过色谱法被分离。
3. 3. The enantiomers of the drug had opposite effects on the body.
   该药物的对映异构体对身体有相反的作用。