CAO Xiu, HAN Jingwen, WU Yan, et al. Determination of Concentration of Xanthine in Rat Plasma by High Performance Liquid Chromatography[J]. 2020,20(12):1417-1420.
CAO Xiu, HAN Jingwen, WU Yan, et al. Determination of Concentration of Xanthine in Rat Plasma by High Performance Liquid Chromatography[J]. 2020,20(12):1417-1420. DOI: 10.14009/j.issn.1672-2124.2020.12.003.
OBJECTIVE:To establish the high performance liquid chromatography(HPLC) method for determination of concentration of xanthine in rat plasma.METHODS:HPLC methods was adopted with Hypersil ODS2 column(250 mm × 4.6 mm
5 μm).The mobile phase was methanol-water(V:V=52:48)
the flow rate was1.0 ml/min
the detection wavelength was 278 nm
and the column temperature was 25 ℃.The plasma samples were extracted and enriched with dichloromethane
and 10 μl injection was used for detection.RESULTS:The calibration curve of xanthatin in plasma showed good linear correlation in the range from 0.1 to 10 μg/ml(R
2
=0.999 7) and the lower limit of concentration was 0.1 μg/ml.The extraction recovery rates of low
medium and high concentration of Xanthatin was respectively 89.19%
83.56% and 96.72%
and the intra-day and inter-day precision was respectively≤5.47% and 8.65%.CONCLUSIONS:This method is sensitive
rapid and simple
and is suitable for the analysis of the concentration of xanthine in vivo