Ethanol was used as the solvent,and the whole plant of Euphorbia lunulata Bge distributing in Northwestern Hubei was soaked and the active ingredient was extracted.The effects of organic solvents(including methanol, ethanol,acetone,ethyl acetate,chloroform),surfactant(including TW80,TW20,OP emulsifier,SDBS) and heat stabilizer(including calcium acetate,sodium lactate,sodium hypophosphite,hexadecyl trimethyl ammonium chloride) to the thermostability of Euphorbia lunulata Bge were measured by using ultraviole...