Study on Quality Standards for Sceptridium Ternatum

OBJECTIVE To establish the quality standards for Sceptridium ternatum, and lay the foundation for its further development. METHODS The content of total flavonoids was assayed by UV-Vis spectrophotometry. The contents of quercetin and kaempferol were determined by HPLC. RESULTS There was a good linear relationship between the absorbance values and the quercetin concentration when it was in the range of 30.23-181.40 μg·mL^-1(R²=0.998 4). The quercetin and kaempferol were in good linear relationships in the range of 2.64-21.12 μg·mL^-1(R²=0.999 8) and 2.00-16.00 μg·mL^-1(R²=0.999 9), respectively. The quercetin/kaempferol content in Sceptridium ternatum should not be less than 0.2‰ and 0.6‰, respectively. CONCLUSION The quality control standard for Sceptridium ternatum is modified and a new one is provided to guarantee the quality of raw medical materials.