为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

A new compound, named daphnolin (1), was isolated from the stem barks of Daphne giraldii Nitsche. Its structure was eluc......

采用硅胶、聚酰胺、SephadexLH-20、大孔吸附树脂等柱色谱方法从城口东俄芹的全草中分离得到6个化学成分，根据理化性质和NMR波谱分......