The effect of different factors on coal extraction yield-temperature,solvent,coal type and irradiation time were investi......

应用气相色谱－质谱联用技术对广藿香根和根茎中挥发油成分进行了分析，从根油中分离出５０个色谱峰，鉴定了４７个化合物，占总量的９５．０２％，主要含广藿香酮......