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  • Title: [Simultaneous determination of chlorogenic acid and vitexin 2"-rhamnoside in Crataegi Fructus extracts by HPLC].
    Author: He Y, Su J, Yang Q, Liu H, Zhang W.
    Journal: Zhongguo Zhong Yao Za Zhi; 2012 Mar; 37(6):829-31. PubMed ID: 22715732.
    Abstract:
    OBJECTIVE: To establish a determination method for contents of chlorogenic acid and vitexin 2"-rhamnoside in Crataegi Fructus extracts by HPLC. METHOD: The chromatographic column was SHISEIDO CAPCELL PAK C18 (4.6 mm x 250 mm, 5 microm); mobile phase was methanol(A) and THF-acetic acid-water (10:2:76, B), with gradient elution, flow speed was 1.0 mL x min(-1); detection wavelength was 330 nm; temperature of column was 25 degrees C. RESULT: Chlorogenic acid and vitexin 2"-rhamnoside showed good linear relationships within the ranges of 1.34-164.8 and 1.18-148.7 mg x L(-1), with the recovery rates being 100.4% and 98.8%, and RSD being 1.5% and 1.3% respectively. CONCLUSION: The present method is so simply, accurate and highly repeatable that it can be used to effectively determine the contents of chlorogenic acid and vitexin 2"-rhamnoside in Crataegi Fructus extracts.
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