Association of Radionuclides with Colloids in Soil Solutions
Association of Radionuclides with Colloids in Soil Solutions
复制标题
DOI:
10.1134/s1066362209020209
复制
发表时间:
2009-04-01
期刊:
影响因子:
0.9
通讯作者:
Myasoedov, B. F.
中科院分区:
文献类型:
--
作者:
Goryachenkova, T. A.;Kazinskaya, I. E.;Myasoedov, B. F.
Association of Pu and Am with variously sized particles in soil extracts is studied by ultrafiltration. In aqueous extracts, the Pu and Am concentrations depend on the soil type and aqueous solution composition. In the aqueous extracts, from 60 to 100% of the radionuclides and organic carbon are associated with fine colloidal particles ( 100 kDa; about 25%, with the fraction with MW 50-10 kDa; and 2-4%, with the low-molecular-weight fraction with MW < 3 kDa. In the group of fulvic acids, 44-49% of the radionuclides is found in the fraction with MW > 100 kDa, and 42-51%, in the fraction with MW < 3 kDa.