Lahiri Susanta, Roy Kamalika, Bhattacharya Soumya, Maji Samir, Basu S
Chemical Sciences Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700 064, India.
Appl Radiat Isot. 2005 Sep;63(3):293-7. doi: 10.1016/j.apradiso.2005.03.007.
Two inorganic ion exchangers, zirconium vanadate and ceric vanadate were synthesized and applied to confine and separate (152)Eu and (134)Cs from a synthetic mixture. The percentages of adsorption of the two radionuclides were studied for the two ion exchangers at varying pH conditions. At pH 3, zirconium vanadate adsorbs both Eu and Cs and a column chromatographic separation was achieved using 0.1M EDTA as the eluant. The ceric vanadate ion exchanger showed an increased trend in adsorption for both the radionuclides with increase of pH value from 1 to 6. At pH 1, a column chromatographic separation of these radionuclides from a mixture was achieved, because at this pH only (134)Cs was adsorbed to ceric vanadate bed in the column.
合成了两种无机离子交换剂钒酸锆和钒酸铈，并将其应用于从合成混合物中富集和分离铕-152和铯-134。研究了在不同pH条件下，两种离子交换剂对这两种放射性核素的吸附百分比。在pH 3时，钒酸锆吸附铕和铯，使用0.1M乙二胺四乙酸（EDTA）作为洗脱剂实现了柱色谱分离。随着pH值从1增加到6，钒酸铈离子交换剂对这两种放射性核素的吸附呈增加趋势。在pH 1时，实现了从混合物中对这些放射性核素的柱色谱分离，因为在此pH值下，柱中只有铯-134吸附到钒酸铈床层上。
