A determination method of ginkgolic acids in sarcotesta of ginkgo biloba by reversed phase high performance liquid chromatography was established. The chromatographic column was Inertsil ODS 2; with a methanol 3% aqueous acetic acid (92∶8, V/V ) mobile phase, 1.0 mL/min flow rate and 40℃ column temperature, the detection wavelength was at 310 nm. The calibration curve was linear over the concentration range from 0.572 μg to 10.30 μg,the correlation coefficient was 0.9999, the limit of detection was 5...