HPLC Fingerprints of Different Polarity Fractions of Achyranthes bidentata of Different Specifications / 中国药学杂志

ABSTRACT

OBJECTIVE: To study and compare the HPLC fingerprints of different polar parts of Achyranthes bidentata of different specifications, investigate their internal quality differences, and provide reference for the standard improvement and clinical use of the medicinal material. METHODS: The Achyranthes bidentata samples were refluxed with 75% ethanol, the extract was dissolved with 40 mL water and then,extracted in turn with petroleum ether, chloroform, ethyl acetate and n-butanol, each extracted phase and aqueous phase were obtained and concentrated. The HPLC fingerprint of each part was collected. The data was analyzed by similarity and comprehensive clustering. Meanwhile, the fingerprints of different parts were compared and analyzed. RESULTS: Eleven common peaks were determined in the HPLC fingerprints of petroleum ether fraction and chloroform extract fraction, 10,19,and 8 common peaks were determined in the HPLC fingerprints of ethyl acetate fraction, n-butyl alcohol fraction,and water extract respectively. The similarity of the fingerprints of chloroform parts was quite low.The similarity of the fingerprints of other parts was higher,all above 0.9. The difference in the fingerprints of petroleum ether parts was mainly reflected in the peak height. The chemical compositions and peak heights of ethyl acetate, chloroform and water extracts were different. Comprehensive cluster analysis could distinguish different specifications of Achyranthes bidentata. CONCLUSION: The internal qualities of different specifications of Achyranthes bidentata are different. HPLC fingerprint established in this experiment can comprehensively reflect the chemical components distribution of Achyranthes bidentata of different specifications. It provides reference for the whole quality evaluation of different specifications of Achyranthes bidentata.