The study aimed to measure the amount of imperatorin in tetraploidy radix angelicae dahuricae and compare it with the original diplontic varieties.
A chromatographic method was employed using a specific column and solutions at set conditions for precise measurement.
Results showed that tetraploid radix had 0.460% imperatorin, while diplontic species had only 0.225%, indicating that the tetraploid variety contains double the active component.