"A combination of sequential extraction with stable isotope ratio measurements of Se might off er new insights into biogeochemical processes governing Se turnover in soils. Therefore, we determined the Se partitioning among three operationally defined sequential extracts (0.1 mol L-1 K2HPO4-KH2PO4 at pH 7, 0.05 mol L-1 NaOH, conc," scientists in Urbana, Illinois report.
"HNO3) and the stable isotope ratios of total Se (delta Se-82/76 values) in 10 topsoils under 5 different land uses (alluvial grasslands, forests, house gardens, parks, and roadside grassland) from the city of Bayreuth (ca. 73,000 inhabitants) in Germany. Furthermore, we determined S and SO42- concentrations …
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