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Published on: March 15, 2017
[Determination of rubrofusarin gentiobioside in Cassia obtusifolia by HPLC]
Li-Ying Tang1, Zhu-Ju Wang, Qiu-Ping Wu
1Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
Objective:
To establish a method for determining the content of rubrofusarin gentiobioside in Cassia obtusifolia.
Method:
The HPLC with Diamonsil C18 (4.6 mm x 250 mm, 5 microm) column was used, acetonitrile-THF-1% acetic acid (18: 3:79) was used as a mobile phase, with flow rate of 1 mL x min(-1), column temperature at 40 degrees 2 and detection wavelength at 278 nm.
Result:
A good linearity was obtained from 0.1-0.5 microg with r = 0.999 9 for rubrofusarin gentiobioside. The average recovery was 101.1%, and RSD was 2.23% (n = 5).
Conclusion:
The method was proved to be simple, rapid, sensitive, precise, reliable and repeatable. It can be applied to the quality control of Semen Cassia.