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Isotopic Triple Labeling in Miscible Displacement Studies
Author(s) -
NkediKizza P.,
Jackson R. K.,
MacIntyre J. L.
Publication year - 1985
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1985.03615995004900030050x
Subject(s) - liquid scintillation counting , porous medium , chemistry , porosity , displacement (psychology) , analytical chemistry (journal) , materials science , radiochemistry , chromatography , psychology , organic chemistry , psychotherapist
A technique was developed to analyze three beta‐emitter isotopes ( 45 Ca, 36 Cl and 3 H 2 O) in a sample, using a two channel liquid scintillation spectrometer. This technique was further successfully used to analyze the concentration of these isotopes in the effluent during miscible displacement studies through columns packed with an Oxisol soil. The isotopic triple labeling approach was used to investigate the effects of physical and chemical properties of the porous medium during solute transport. Tritium was used to study the effects of the physical properties of the porous medium (aggregate size and flux), while 45 Ca (a cation) and 36 Cl (an anion) were used to study the effects of the chemical properties (solution pH and concentration) of the same porous medium. This is a promising approach to determine how the physical and chemical properties of a soil interact to influence solute transport.