Conclusion HPLC-ESI-MS method can be efficiently used to study FA and FAI.

The extraction process of flavonoids from Frutus aurantii immaturus using pressurized extraction(PE) was studied and compared with reflux extraction.

The species and varieties of Citrus and their medicinal constituents as well as the drug resources are discussed.

Objective:To observe the clinical curative effect that Zhishuxiaopiwan management peptic ulcer.

An HPLC method was established for the determination of hesperidin and naringin in the Fructus Aurantii Immaturus and Fructus Aurantii from different places.