RESUMO
AIM To establish the HPLC fingerprints of Kangfuxin Liquid (extract of Periplaneta americana L.) and to determine the contents of six constituents.METHODS The analysis of this drug was performed on a TOSOH TSK-GEL ODS column (250 mm × 4.6 mm,5 μm),with the mobile phase comprising of acetonitrile-water (containing 0.07％ acetic acid) flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelength was set at 280 nm.RESULTS There were twenty-four common peaks in the fingerprints of ten batches of samples (Ⅰ-Ⅹ) with the similarities of 0.932-0.993 (except for sample Ⅰ).Uracil,hypoxanthine,xanthine,inosine,protocatechuic acid and Cyclo (Gly-Tyr) showed good linear relationships within the ranges of 3.460-173.0,3.960-198.0,3.596-179.8,1.338-66.9,3.672-183.6 and 3.552-177.6 μg/mL,whose average recoveries (RSDS) were99.8％ (2.65％),98.0％ (2.55％),99.7％ (1.59％),100.7％ (2.80％),102.0％ (2.09％) and 99.6％ (1.88％),respectively.CONCLUSION This accurate,stable and simple method can be used for the quality control of Kangfuxin Liquid.