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Experimental design for the preliminary study of geochemical processes

Description: An example of the use of a simple fuctorial design to study the distribution of /sup 134/Cs and/sup 85/Sr between a soil column and solution is reported. In this design, two concentration levels of each of four factors (NaNO/ sub 3/, HNO/sub 3/, KNO/sub 3/, and Ca(NO/sub 3//sub 2/) were combined in all possible combiuations to give a total of 24 combinations. In the case of /sup 134/Cs removal, all of the independent variables were significant over their respective concentration ranges, while w… more
Date: March 24, 1966
Creator: Ames, L.L. Jr. & Hajek, B.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

TRACE ELEMENT DETERMINATIONS IN NATURAL MATERIALS BY ACTIVATION ANALYSIS

Description: Abundances of zirconium, hafnium, cadmium, antimony, tantalum, gold, platinum, and iridium have been determined in meteorites, tektites, deep-sea sediments, and various terrestrial materials by use of neutron activation analysis. Among the principal advantages of the method are its high sensitivity and freedom from errors due to reagent and laboratory contamination. These data have considerable significance in the fields of geochemistry and cosmochemistry. Each of these elements, except platinu… more
Date: January 1, 1963
Creator: Ehmann, W D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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