The factors of affecting extraction of effective ingredients including the added amount of water,the extracting time and times of extraction were studied by orthogonal design with the yield rate of dry extract and content of berberine hydrochloric as the indicator.

Preparation and Release Characteristics of Berberine Chitosan Nanoparticles in Vitro;

Effect of Extracting Temperature to Microwave Irradiation of Berberine;

Stability Analysis of Berberine Fragment Ions by Mass Spectrometry and Quantum Chemistry Studies on Fragmentation Mechanism;

Determination of Content of Berberine Hydrochloride in the Mongolian Medicine Leizhuhua by RP-HPLC;

Effects of evodiamine and berberine hydrochloride on cell apoptosis and expression of hTERT-mRNA of human colorectal cancer cell line HT-29;

The index was the yielding contents of baicalin and berberine hydrochloride in extract which were determined by HPLC.

HPLC determination simultaneous of baicalin,jatrorrhizine,palmatine and berberine in Shuanghuang Xiaoyan tablets;

A reversed\|phase liquid chromatographic method has been developed and validated for the analysis of berberine in decocted liquid from Shenshu granules with water.

Objective:To develop a RP-HPLC method for determination of berberin in Kangpenyan Jiaonang.

Synthesis and Antiarrhythmic Activity of Protoberberine Quaternary Ammonium Compounds;