Abstract:Based on fixed dosages of Radix Aconiti Preparta and Rhizoma Zingiberis and six different dosages ofRadix Glycyrrhizae,six different Sini Decoctions were prepared.The aconitine in these decoctions was determined byTLC-scanning.Statistical analysis was used in the experiment.It has been confirmed that the quantity of aconitine re-duces with the increase of the quantity of Radix Glyrrhiaae,assuming a significant negative correlativity,r=-0.9945.