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Soil chromatographic movement of technetium-99 through selected Minnesota soils

Journal Article · · Soil Sci.; (United States)
We monitored the movement of technetium-99 through 41 samples of Minnesota soils, using soil column layer chromatography (CLC), a modification of soil thin layer chromatography. Under the aerobic conditions of soil CLC, /sup 99/Tc occurs as the pertechnetate anion. Pertechnetate movement in the soils was characterized by the traditional R/sub f/ chromatographic parameter. Reduced R/sub f/ values were statistically related to elevated levels of soil organic matter. Complexation of /sup 99/Tc, related to soil organic matter, was weak. Elution patterns of /sup 99/Tc in the soil CLC columns were asymmetric, with pertechnetate retardation associated with both hydrodynamic dispersion and weak retention. Pertechnetate was less mobile than was Cl/sup -/ in selected soils by soil CLC.
Research Organization:
Univ. of Minnesota, St. Paul
OSTI ID:
6922696
Journal Information:
Soil Sci.; (United States), Journal Name: Soil Sci.; (United States) Vol. 130:5; ISSN SOSCA
Country of Publication:
United States
Language:
English