摘要:The analytical method to determine organochlorine pesticides in natural medicines included in The Japanese Pharmacopoeia (JP), 15th edition,1) is not adequate because the recovery rates of organochlorine pesticides in Glycyrrhizae radix are very low. In this study, we developed a method to analyze organochlorine pesticides in Glycyrrhizae radix with acceptable recovery rates. The method enables analysis of organochlorine pesticides in all natural medicines for which maximum residue levels are set.