Determination of bioavailable iron in noncontaminated Slovak soils by flame atomic absorption spectrometry
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J. Barteková
,
M. Žemberyová
Abstract
A method for the extraction of bioavailable iron from soils from various parts of Slovakia using a buffered diethylenetriaminepentaacetic acid (DTPA) solution was utilized. The extractant consists of 0.005 mol dm−3 DTPA, 0.1 mol dm−3 CaCl2, and 0.1 mol dm−3 triethanolamine with pH of 7.3. DTPA was selected as the chelating agent because it can effectively extract micronutrient metal, iron. Distribution of iron in the horizons of various types of soils with respect to bioavailable iron was evaluated. The bioavailable iron in the extracts was determined by flame atomic absorption spectrometry. The calibration standards were prepared in the same surroundings as the extracts. Comparing to the average of 2.7–3.7 % total iron contents in Slovak soils, the available amounts of iron represent in average only very small amounts, approximately 0.3 % in comparison to total amounts.
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© 2006 Institute of Chemistry, Slovak Academy of Sciences
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- Chemistry for the design and better understanding of cement-based materials and composites
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- Flame retardant property of nanopowder aerosols toward methane
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- Determination of technetium-99 in soils and radioactive wastes using ICP-MS
- Synthesis and characterization of the rare-earth complexes with salicylic acid
- Spectrophotometric determination of nickel(II) in different samples by complexation with some triazolylazo dyes
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- Effects of Cd(II) and Zn(II) complexes with bioactive ligands on some photosynthesizing organisms
- Efficiency of a fixed-bed and a gas-lift three-column reactor for continuous production of ethanol by pectate-and alginate-immobilized Saccharomyces cerevisiae cells
- Reactions and applications of trans-1,2-epoxy-(Z,E)-cyclododeca-5,9-diene
- Dictionary of Carbohydrates. Edited by P. M. Collins. Second Edition
- In memoriam Associate Professor Ing. Vladimír Daněk, DrSc
