Abstract:Objective:To probe into the possibility of application of electrophoresis in the identification of caulis drugs.Method:The isoenzymes of peroxidase,esterase and amylase in six kinds of caulis drug with similar characteristics were analyzed by means of polyacrylamide gel slab electrophoresis.Result:The bands of isoenzymogram of peroxidase are the clearest of all,and band number and mobility rates of the six drugs differ from one another,showing a remarkable interspecific distinction.Conclusion:Electrophoresis of isoenzymes of peroxidase can be employed as one of the effective means in defferentiating caulis drugs.