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目的 :测定复方元胡胶囊中延胡索乙素的含量。方法 :薄层扫描法。样品经适当提取后点于硅胶G薄层板上 ,以苯 :石油醚 :甲醇 :三氯甲烷 (3∶3∶0 5∶5∶1 0 )为展开剂 ,双波长反射锯齿扫描 ,λS=340nm ,λR=36 5nm ,。结果 :通过方法学考察 ,表明延胡索乙素在 0 2～ 1 2 μg范围内线性关系良好 ,其回归方程为S =5 5 4 5 4X - 2 5 8 2 ,r=0 9994 ;平均回收率为97 72 % ,RSD =1 1 8%。结论 :该方法操作简便 ,测定结果准确
Objective: To determine the content of tetrahydropalmatine in Fufang Yuanhu Capsule. Method : Thin layer scanning. After appropriate extraction, the sample was spotted on silica gel G-laminate with benzene:petroleum ether:methanol:trichloromethane (3:3:0:5:5:10) as developing solvent, double-wavelength reflection sawtooth scan, λS= 340nm, λR = 36 5nm,. RESULTS: The methodological investigation showed that the linear relationship of tetrahydropalmatine was good in the range of 0.2 to 12 μg. The regression equation was S = 5 5 4 5 4X - 2 58 and r = 09994; the average recovery was 97 72 %, RSD =1 1 8%. Conclusion: The method is simple and accurate.