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dc.contributor.authorHanousek, O.-
dc.contributor.authorSantner, J.-
dc.contributor.authorMason, S.-
dc.contributor.authorBerger, T.W.-
dc.contributor.authorWenzel, W.W.-
dc.contributor.authorProhaska, T.-
dc.identifier.citationAnalytical and Bioanalytical Chemistry, 2016; 408(29):8333-8341-
dc.description.abstractA diffusive gradient in thin films (DGT) technique, based on a strongly basic anion exchange resin (Amberlite IRA-400), was successfully tested for ³⁴S/³²S analysis in labile soil sulfate. Separation of matrix elements (Na, K, and Ca) that potentially cause non-spectral interferences in ³⁴S/³²S analysis by MC ICP-MS (multi-collector inductively coupled plasma-mass spectrometry) during sampling of sulfate was demonstrated. No isotopic fractionation caused by diffusion or elution of sulfate was observed below a resin gel disc loading of ≤79 μg S. Above this threshold, fractionation towards ³⁴S was observed. The method was applied to 11 different topsoils and one mineral soil profile (0-100 cm depth) and compared with soil sulfate extraction by water. The S amount and isotopic ratio in DGT-S and water-extractable sulfate correlated significantly (r² = 0.89 and r² = 0.74 for the 11 topsoils, respectively). The systematically lower ³⁴S/³²S isotope ratios of the DGT-S were ascribed to mineralization of organic S.-
dc.description.statementofresponsibilityOndrej Hanousek, Jakob Santner, Sean Mason, Torsten W. Berger, Walter W. Wenzel, Thomas Prohaska-
dc.rights© The Author(s) 2016. This article is published with open access at
dc.subjectDiffusive gradients in thin films; MCICP-MS; sulfur; sulfate; isotope ratio-
dc.titleDiffusive gradients in thin films measurement of sulfur stable isotope variations in labile soil sulfate-
dc.typeJournal article-
Appears in Collections:Agriculture, Food and Wine publications
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