本文提出了将试剂 N-烯丙基-N′-(对苯磺酸钠)硫脲用于Bi(Ⅲ)-Cu(Ⅱ)-NTu-I(?)异金属四元体系中,光度测定微量 Bi 的新方法.实验结果表明:该法显色快、稳定性好、选择性高,优于经典的碘化物法和硫脲法.在水相中可直接测定,操作简单.铋...本文提出了将试剂 N-烯丙基-N′-(对苯磺酸钠)硫脲用于Bi(Ⅲ)-Cu(Ⅱ)-NTu-I(?)异金属四元体系中,光度测定微量 Bi 的新方法.实验结果表明:该法显色快、稳定性好、选择性高,优于经典的碘化物法和硫脲法.在水相中可直接测定,操作简单.铋浓度在0～110μg/mL 范围内成直线关系,ε≈1×10~4. 对回收实验和合成样品分析,均获得满意的结果.展开更多
In this paper, the definition of weak dominance is proposed for a NTU game and two new solution concepts of NTU games are introduced: the refined core and weakly stable set. The relationship is explored among the core...In this paper, the definition of weak dominance is proposed for a NTU game and two new solution concepts of NTU games are introduced: the refined core and weakly stable set. The relationship is explored among the core, the weakly stable set and the refined core.展开更多
文摘In this paper, the definition of weak dominance is proposed for a NTU game and two new solution concepts of NTU games are introduced: the refined core and weakly stable set. The relationship is explored among the core, the weakly stable set and the refined core.
