The present paper reports the contents of ursolic acid in Crataegus pinnatifida var.major before and after processing determined by CS-920 TLC scanner: 0.274% and 0.265%, coefficients of variation 1.180% and 1.150% respectively.
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- 用薄层扫描法测得生山楂和焦山楂中熊果酸的含量分别为0.;274%25和0