About thirty bidentate neutral phosphine ox-ides including carbamoylmethylene phosphine ox-ides(CMPO)and tetraalkylalkylene diphosphineoxides(DPO)used as extractants are listed inthis paper.

• 列出了30余种双配位基中性氧化膦类萃取剂；其中包括甲氨酰甲撑氧膦(CMPO)和四烷基(或苯基)烷撑双氧膦(DPO)两类；并给出了它们自无机酸介质中萃取某些锕系元素的萃取率.