Résumé
Objective To establish a HPLC method for determination of naringenin and apigenin in Premna fulva. Methods The SHISEIDO￣SPOLAR C18(250 mm×4.6 mm,5μm) was used as analytical column.The mobile phase consisted of methanol￣0.2% phosphoric acid (42:58) with isocratic elution at a flow rate of 1.0 mL.min-1 .The detection wavelength of naringenin and apigenin was 288 nm and 340 nm, respectively.Column temperature was set at 35 ℃ , the injection Volume was 10 μL. Results Naringenin and apigenin had a good linear relationship in the concentration range of 0.180 ~ 3.60 μg (r =0.999 9) and 0. 0052 ~ 0. 1040 μg ( r = 0. 999 9), respectively. Conclusion The method is accurate and reliable. It is appropriate for the quantitative determination of naringenin and apigenin in Premna fulva and its preparations.
Résumé
OBJECTIVE:To prepare Premna fulva craib liniments and to establish a method for its quality control.METHODS:The liniments was prepared from yellowhairy premna stem,rhizoma drynariae,borneo and menthol in70%al-cohol solvent.Naringin in the liniments was identified qualitatively by TLC,and the content of naringin was determined by HPLC.RESULTS:Naringin was identified in TLC.The sample size of naringin showed a good linear relationship with its peak area in the range of0.51?g～2.55?g(r=0.9993).The average recovery was98.58%(RSD=1.31%).CONCLUSION:The preparation technology is practicable and the method of quality control is reliable.