Abstract.
For selective dissolution of Mn oxides as components of soil (easily reducible oxides) 0.05 mol L–1 and 0.1 mol L–1 NH2OH·HCl acidified to pH 2 and for dissolution of Fe oxides (crystalline form of the oxides) 0.25 mol L–1 NH2OH·HCl in 25% acetic acid, 0.2 mol L–1 oxalate buffer and 0.1 mol L–1 ascorbic acid in oxalate buffer were tested. Dissolved elements were determined by ICP–MS and ICP–OES. The studies indicate that the use of 0.05 mol L–1 NH2OH·HCl in nitric acid solution (pH 2) and 0.1 mol L–1 ascorbic acid in 0.2 mol L–1 oxalate buffer led to selective leaching of trace metals bound by Mn and Fe oxide phases in soil. Comparison of different extraction schemes indicates that the trace elements investigated are mainly bound to minerals consisting of crystalline Fe oxides and insoluble minerals (under the extraction conditions used). The studies also indicate that Mn oxides and organic matter retain a major mobile fraction of the elements investigated in the soil.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
Author information
Authors and Affiliations
Additional information
Electronic Publication
Rights and permissions
About this article
Cite this article
Krasnodębska-Ostręga, B., Emons, H. & Golimowski, J. Selective leaching of elements associated with Mn – Fe oxides in forest soil, and comparison of two sequential extraction methods. Fresenius J Anal Chem 371, 385–390 (2001). https://doi.org/10.1007/s002160100982
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s002160100982