Rapid Determination of Chrysophanol and Aurantio-Obtusin in Cassia Obtusifolia L.by ASE-HPLC
- VernacularTitle:ASE-HPLC法快速测定决明子中大黄酚和橙黄决明素
- Author:
Qiang LIAO
;
Riwei WEI
;
Haitao HUANG
- Keywords:
Accelerated solvent extraction;
HPLC;
Cassia obtusifolia L.;
Chrysophanol;
Aurantio-Obtusin;
Orthogonal tests
- From:
China Pharmacist
2017;20(5):928-930
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To establish an accelerated solvent extraction(ASE)-HPLC method to determine chrysophanol and aurantio-obtusin in Cassia obtusifolia L.Methods: The optimal extraction conditions were defined by orthogonal tests using ASE.The method was carried out on an ACE Excel C18-PFP column (75 mm×2.1 mm,2.5 μm) with the mobile phase consisting of 0.1% phosphoric acid solution-acetonitrile with gradient elution.The column temperature was 40 ℃,the flow rate was 0.4 ml·min-1, and the detection wavelength was 284 nm. Results: The best process parameters of ASE were as follows:the extraction solvent was methanol, the extraction temperature was 120 ℃ and the static extraction duration was 5 minutes for three cycles.The ASE method needed only 1/9 of the time as the pharmacopoeia method,while the extraction efficiency of the ASE method was higher.The linear ranges of cassia obtusifolia L.and Chrysophanol were at 0.73~58.57 μg·ml-1(r=0.999 7) and 1.09~87.29 μg·ml-1(r=0.999 6).The average recoveries were 102.7%(RSD=0.8%) and 98.2%(RSD=1.5%).Conclusion: The method is simple, rapid and sensitive, which can be used for the rapid determination of aurantio obtusin and chrysophanol in Cassia obtusifolia L.
