TAN Xin-wei, et al. Determination of madecassoside in SD rats plasma by solid-phase extraction RP-HPLC[J]. Journal of Chongqing Medical University, 2010,35(6):884-887.
TAN Xin-wei, et al. Determination of madecassoside in SD rats plasma by solid-phase extraction RP-HPLC[J]. Journal of Chongqing Medical University, 2010,35(6):884-887. DOI: 10.13406/j.cnki.cyxb.2010.06.053.
Objective:To establish a method for madecassoside determination by solid-phase extraction RP-HPLC in SD rats plasma. Methods:The sample was cleaned with an Strata-X solid-phase extraction . HPLC conditions were as follows:Welchrom-C18 column (250 mm×4.6 mm
5 μm)
water-acetonitrile(24∶76)as mobile phase(flowrate:1.0 ml/min)
cucurbitacin B as internal standard
detection wavelength of 225 nm
and column temperature of 30℃. Results:In this situation
the remaining times of the madecassoside and cucurbitacin B were 5.11 min and 8.14 min
respectively. The linear range of the method was 5 μg/ml~1.5 mg/ml (r=0.999 8).The low limit of detection was 1 μg/ml. The method recoveries and the extraction recoveries were 90.21%~95.65% and 80.65%~87.04%
respectively. The within-day RSD and between-day RSD were between 1.31%~3.07%(n=5). Conclusion:Themethod is simple
convenient
accurate
reproducible
and suitable for studying the pharmacokinetics of madecassoside in SD rats .