Publication: Evaluation of distribution and chemical associations between cobalt and manganese in soils by continuous-flow sequential extraction
Issued Date
2005-10-01
Resource Type
ISSN
15322416
00103624
00103624
Other identifier(s)
2-s2.0-30744442091
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Mahidol University
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SCOPUS
Bibliographic Citation
Communications in Soil Science and Plant Analysis. Vol.36, No.19-20 (2005), 2839-2855
Suggested Citation
N. Tongtavee, J. Shiowatana, R. G. McLaren, J. Buanuam Evaluation of distribution and chemical associations between cobalt and manganese in soils by continuous-flow sequential extraction. Communications in Soil Science and Plant Analysis. Vol.36, No.19-20 (2005), 2839-2855. doi:10.1080/00103620500306023 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/16194
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Title
Evaluation of distribution and chemical associations between cobalt and manganese in soils by continuous-flow sequential extraction
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Abstract
In this study, a strong association between cobalt (Co) and manganese (Mn) in different geochemical soil phases (fractions) was evaluated using a continuous-flow sequential extraction technique employing a modified Tessier extraction scheme. With the flow system, detailed extraction profiles of Co and Mn in soils could be obtained by plotting concentrations of the elements extracted against extraction time (plots referred to as extractograms). Extractograms may be used as an indicator of whether the elements dissolving in the same extraction step are closely associated, or are merely extractable with the same reagent. From the soil samples studied, the coincidence of Co and Mn peaks seems to indicate a close association of these elements in the exchangeable, reducible, and oxidizable fractions. Analysis of flow extraction data suggested that the association between Co and Fe is not as strong as reported in previous studies based on the statistical analysis of batch fractionation data. Copyright © Taylor & Francis, Inc.