Quantitative determination of salvianolic acid A in rat plasma by HPLC / 中草药

ABSTRACT

Object To develop a method for the quantitative determination of salvianolic acid A in rat plasma. Methods HPLC method and Hypersil ODS column (4 6 mm?200 mm, 10 ?m) were used, the mobile phase was acetontrile water (1∶2 65, adjusted pH to 2 5 with formic acid), at a flow rate of 0 9 mL/min, the UV detection wavelength was 285 nm. Cinnamic acid was used as internal standard. Results The recovery of the method was in the range of 98 9%～106 9%, the recovery of the extraction was over 83%. The within day precision and the day to day precision were both lower than 8 4%. Conclusion The method is appropriate for the determination of salvianolic acid A when pharmacokinetics of salvianolic acid A is studied in rat plasma.