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纸上电泳用于判别溶液中离子存在形式,研究价态分布情况及电荷极性等。该方法设备简单,操作方便,速度快、取样量少,且结果直观,判断正确,适用于半衰期短的放射性样品分析,是电化学研究的一个有效的方法。 用纸上电泳进行放射性碘的不同氧化态的分离工作,国外也早已开展。他们采用各种中性及硷性溶液作电解液,研究了I-、IO_3~-、1O_4~-的电泳图。Shukla等报道了在NaOH及NaCl介质中~(131)I~-、~(131)IO_3~-、~(131)IO_4~-的纸上电泳分离及碲存在下碘的不同氧化态的分布。Dreyer等则分别用KCI、NaH_2PO_4、NaNO_3作电解液,
Paper electrophoresis is used to determine the existence of ions in solution, to study the valence distribution and charge polarity. The method has the advantages of simple equipment, convenient operation, high speed, small sample amount, intuitionistic result and correct judgment, and is suitable for the analysis of radioactive samples with short half-life and is an effective method for electrochemical research. Electrophoresis on paper for the separation of different oxidation states of radioactive iodine has long been carried out abroad. They used a variety of neutral and alkaline solution as electrolyte, I-, IO_3 ~ -, 1O_4 ~ - electrophoresis. Shukla et al. Reported the electrophoretic separation of ~ (131) I ~ -, ~ (131) IO_3 ~ - and ~ (131) IO_4 ~ - in NaOH and NaCl media and the distribution of different oxidation states of iodine in the presence of tellurium. Dreyer, etc. were respectively KCI, NaH 2 PO 4, NaNO 3 as electrolyte,