In the current work, chryosphanol (MHAQ) was isolated and purified from rheum,and the photosensitization activities were......

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......

对苯二胺类彩色显影剂(PPD_s)经两步电子转移依次生成半醌自由基(SQDI_s)和醌二亚胺(QDI_s)。半醌自由基在可见光范围(460～550nm)有......

Quinoid entities, in which quinone and hydroquinone groups equilibrate via a semiquinone radical intermediate, are a com......