OBJECTIVE: To determine the coumarins content in Radix Angelicae Dahuricae (Baizhi). METHODS: The total content of coumarins was determined by UV. The content of imperatorin, isoimperatorin and oxypeucedanin hydrate in different samples was carriedut by HPLC. RESULTS: The processing method and the medicinal position have great effect on the coumarin content. CONCLUSION: The content of oxypeucedanin hydrate in Baizhi was determined. This method can be used for quality control of Baizhi.
OBJECTIVE: To determine the coumarins content in Radix Angelicae Dahuricae (Baizhi). METHODS: The total content of coumarins was determined by UV. The content of imperatorin, isoimperatorin and oxypeucedanin hydrate in different samples was carriedut by HPLC. RESULTS: The processing method and the medicinal position have great effect on the coumarin content. CONCLUSION: The content of oxypeucedanin hydrate in Baizhi was determined. This method can be used for quality control of Baizhi.