Variation of the rare earth element concentrations in the soil, soil extract and in individual plants from the same site |
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Authors: | A Wyttenbach L Tobler P Schleppi V Furrer |
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Institution: | (1) Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland;(2) Snow and Landscape Research, Swiss Federal Institute for Forest, CH-8903 Birmensdorf, Switzerland |
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Abstract: | Samples of various types (spruce needles, blackberry leaves, soils, and soil extracts) have each been taken at 6 places from
the same site. In addition, 4 whirls each from 2 spruce trees were sampled. Rare earth elements (REEs) were determined in
these samples by neutron activation analysis with a chemical group separation. Variations between places were found to be
small with soils and soil extracts, but large with plants. Variations between whirls were small. Plants neither reflected
the soil nor the soil extract. Both plant species were dissimilar, but the logarithm of their ratio was a linear function
of the atomic number of the REE. A negative Ce anomaly (with respect to soil) was found in both plant species. |
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