CAO Guang-shang, YANG Pei-min, WANG Xin-feng, et al. Determination of Isoscutellarein in Different Parts of in Different Harvest Time by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2014, 20(17): 49-51.
CAO Guang-shang, YANG Pei-min, WANG Xin-feng, et al. Determination of Isoscutellarein in Different Parts of in Different Harvest Time by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2014, 20(17): 49-51. DOI: 10.13422/j.cnki.syfjx.2014170049.
Objective: The study was aimed to develop a HPLC method for the determination of a new active component isoscutellarein in Hedyotidis diffusa. Method: The column was Kromasil-C18(4.6 mm×250 mm
5 μm). The acetonitrile-0.1% phosphoric acid(44:56) was used as mobile phase
with UV detection was at 280 nm
the detector drift tube and column temperature at 35 ℃. Result: The sample showed good linear relationship with sample volume in the range of 0.145-1.595 μg for isoscutellarein(r=1).The average recovery of isoscutellarein was 99.97%
with a RSD value of 0.95%. The content of isoscutellarein in leaf collected in August-September was the highest and was three to four times that of the stem. Conclusion: The method is simple
accurate
replicable
and can be used for the quality control of isoscutellarein in H. diffusa.The study also provides a theoretical basis for reasonable harvest time of H. diffusa.