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Type: Journal article
Title: Stable isotope techniques for assessing labile Cu in soils: Development of an L-value procedure, its application, and reconciliation with E values
Author: Oliver, I.
Ma, Y.
Lombi, E.
Nolan, A.
McLaughlin, M.
Citation: Environmental Science and Technology (Washington), 2006; 40(10):3342-3348
Publisher: Amer Chemical Soc
Issue Date: 2006
ISSN: 0013-936X
Statement of
Ian W. Oliver, Yibing Ma, Enzo Lombi, Annette L. Nolan, and Mike J. McLaughlin
Abstract: Isotopic techniques have become a valuable tool for assessing the lability or potential availability of elements in soil. Until now, work on soil Cu has been limited to E-value methods where soil solution extracts are obtained by physical means due to the very short (12.4 h) half-life of the radio isotope 64Cu. However, a stable isotope method has recently been developed for determining soil Cu E values that utilizes enhancement of the 65Cu isotope in soil and measurement of the subsequent ratio with 63Cu. We have developed an L-value technique for soil Cu, where plants are used to sample the soil solution and therefore give a direct measure of the plant available Cu. The L-value technique developed was then compared, and found to be equivalent, with E values using equilibration periods up to and including the growth period of plants in the L-value method.
Keywords: Copper
Soil Pollutants
Water Pollutants
Radioisotope Dilution Technique
Environmental Monitoring
Description: Publication Date (Web): April 6, 2006
Rights: Copyright © 2002 American Chemical Society
DOI: 10.1021/es051845j
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Appears in Collections:Aurora harvest 6
Earth and Environmental Sciences publications
Environment Institute publications

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