The purification of VVER-1000 uranium-plutonium extract from fission products by liquid chromatography was tested. The process was conducted in a liquid chromatography column filled with silica gel whose pores were impregnated with nitric acid at concentration 1 mol/L. The purification of the uranium-plutonium extract was performed in two stages. The highest purification factors were obtained from ¹⁵⁴Eu – 2500 and ¹³⁷Cs – 3·10⁴. A high purification factor of 12 was obtained for ²⁴¹Am. The efficacy of purification of the extract from the indicated fission products was observed for extract flow/water solution ratio equal to at least 40.

中文翻译：

---

液相色谱法从裂变产物中纯化VVER-1000用过的核燃料的铀-提取物

测试了通过液相色谱从裂变产物中纯化VVER-1000铀-提取物。该方法在填充有硅胶的液相色谱柱中进行，该硅胶的孔中用浓度为1 mol / L的硝酸浸渍。铀-提取物的纯化分两个阶段进行。最高的纯化因子来自¹⁵⁴ Eu – 2500和¹³⁷ Cs – 3·10 ⁴。对于²⁴¹ Am ，获得了12的高纯化因子。对于提取液流量/水溶液比率至少等于40，观察到从所示裂变产物中纯化提取物的功效。