セシウムおよびフランシウムのテトラフェニルボロン溶媒抽出法

概要

論文の詳細を見る
A micro amount of cesium is extracted by benzene as its salt of tetraphenylboron (TPB) from the solution with pH higher than 2. An addition of calcium ion prevents the emulsification. The interference from the trace of potassium can be avoided by the use of a mixture of benzene and methyl isobutyl ketone.<BR>The extraction with methyl isobutyl ketone alone is successful only from the solution of much higher concentration of TBP. The radioactive <SUP>134</SUP>Cs added to a solution (pH 5) from pitchblende (corresponding to 20 mg of U) was recovered quantitatively by the extraction with mixed benzene and methyl isobutyl ketone (1+1).<BR>Francium and thallium are extractable under the same conditions as those for cesium.
社団法人日本分析化学会の論文