Barium isotope method for measuring cation‐exchange capacity of soils and clays
- 1 April 1970
- journal article
- research article
- Published by Wiley in Journal of the Science of Food and Agriculture
- Vol. 21 (4), 169-171
- https://doi.org/10.1002/jsfa.2740210401
Abstract
Cation‐exchange capacity has been measured by isotopic exchange of 133Ba with Ba2+‐saturated soils and clays in 2·5 × 10−3 M‐BaCl2 suspensions. The rate of isotopic dilution, the efficiency of displacement of soil cations by Ba2+, and the precision of the method are critically assessed. The method is reliable and convenient, and can be used with both buffered and unbuffered systems.Keywords
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