【摘要】 <正> 结晶形锑酸（C-SbA）与阳离子交换树脂和其他无机离子交换剂相比较,对硷金属离子显示出一种罕见的选择性.其突出之点有二个:（1）吸咐顺序与众不同,如 Li<K<Cs<Rb<Na.（2）分离因素高,淋洗体积小.在0.1N 硝酸中α^Na_Li=1×10⁵,α^Na_Li=678,α^Na_K=152,α^Rb_K=18.2,α^Rb_Cs=6.4.用相当小的 C-SbA（0.8×6.0cm i.d）柱上操作可以得到硷金属离子的相互分离.分离量为1:10:0.5:0.25:10mg,回收率为92～106.6%.更多还原

【Abstract】 The crystalline antimonic acid(C-SbA)is synthesized and given an un- usual selectivity for alkali metals,when compared with strong acid type ca- tion exchange resin and other inorganic ion-exchange materials.In the acid solution its affinity series behaves a peculiar property for a trace amount of alkali metals,and in succession they are:Li<K<Cs<Rb<Na. Furthermore,the mutual separation of alkali metal ions has been comple- tely achieved with a relatively small antimonic acid column(0.8×6cm i.d.) with nitric acid solution as an eluant.The amounts of separation is 1:10:0.5: 0.25:10mg. A procedure is described for separating microamounts of potassium from a large quantity of rubidium chloride by using C-SbA as a cation exchanger. The amounts of separation of Rb to K is 3000:1.The relative error is 50% when determining down to 0.0x% of K~+.更多还原