RESUMO
Objective:To determine the content of Chikusetsu saponin Ⅳa in the roots, stems and leaves in Panacis japonici rhizoma, and explore its development value. Methods:By using High Performance Lliquid Chromatography (HPLC) method to determine the content of Chikusetsu saponin Ⅳa in the roots, stems and leave of Panacis japonici rhizoma. Inertsil ODS-sp (4.6 mm×150 mm, 5 μm) was used as the column and the acetonitrile-0.2% phosphoric acid (35:65) as the mobile phase. The flow rate was 1 ml/min with the temperature 35 ℃ under wavelength 210 nm. Results:The linear ranged from 1-10 μg of Chikusetsu saponin Ⅳa was good ( r=0.999 5). The content of Chikusetsu saponin Ⅳa in the roof, stem and leaf were 2.169%, 0.269%, 0.169%, respectively. Conclusions:The roof of Panacis japonici rhizoma contains the highest level of Chikusetsu saponin Ⅳa followed by stem and leaf. The roof part could be used as the medical part and its stem and leaf are also valuable for further development.