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[Comparative analysis of ursolic acid in Crataegus pinnatifida Bge. var. major N.E. Br. before and after processing]
Abstract:
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. This method is simple, fast, reproducible and highly sensitive.