目的 :建立测定清淋冲剂中马兜铃酸含量的方法。方法 :薄层扫描法。结果 :方法回收率 99 2 % ,RSD=1 41(n =5 )。结论 :该法准确 ,重现性好 ,可用于该制剂的质量控制 Objective : To establish a method for determination of aristolochic acid in Qinglin granules. Method : Thin layer scanning. RESULTS: The method recovery rate was 99 2% with RSD=1 41 (n =5). Conclusion : This method is accurate, reproducible and can be used for the quality control of the preparation