Distribution of As, Cr, Ni, Rb, Ti and Zr between peat and its humic fraction along an undisturbed ombrotrophic bog profile (NW Switzerland)
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| Title: | Distribution of As, Cr, Ni, Rb, Ti and Zr between peat and its humic fraction along an undisturbed ombrotrophic bog profile (NW Switzerland) |
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| Authors: | Zaccone, C.1 zaccone@agr.uniba.it, Cocozza, C.1, Cheburkin, A.K.2, Shotyk, W.2, Miano, T.M.1 |
| Source: | Applied Geochemistry. Jan2008, Vol. 23 Issue 1, p25-33. 9p. |
| Subjects: | Energy minerals, Fuel, Organic acids |
| Geographic Terms: | Switzerland |
| Abstract: | Abstract: Ombrotrophic bogs are useful records of the impact of historical human activity on heavy metal contamination. Several studies concerning the trace element record (mainly Pb and Hg) in these particular environments have been carried out in recent years, although the role of humic substances has often not been considered. In particular, of the components of peat organic matter, fulvic acids and low molecular weight compounds are generally responsible for the mobility of trace elements through the profile, while humic acids (HAs) are involved in the formation of more stable organo-mineral complexes. In order to study the parallel distribution of As, Cr, Ni, Rb, Ti and Zr in bulk peat and the corresponding HAs, a peat core (10×10×81cm) was collected from Etang de la Gruère (Switzerland) and cut into 27 slices of 3cm. The samples were freeze-dried and milled very finely, and HAs extracted from each sample. Both peat and HAs were analyzed using an energy-dispersive miniprobe X-ray fluorescence multielement analyser (EMMA-XRF). Of the considered elements, Ni showed a great affinity for the humic acid component, while Cr was concentrated mainly into humic material from the deeper layers. On the other hand, Ti, Zr and Rb seemed to reflect the variation in mineral material both in peat and HA samples, while the As content of both materials reflected the environmental conditions characterizing the bog. [Copyright &y& Elsevier] |
| Copyright of Applied Geochemistry is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 27943142 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Distribution of As, Cr, Ni, Rb, Ti and Zr between peat and its humic fraction along an undisturbed ombrotrophic bog profile (NW Switzerland) – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zaccone%2C+C%2E%22">Zaccone, C.</searchLink><relatesTo>1</relatesTo><i> zaccone@agr.uniba.it</i><br /><searchLink fieldCode="AR" term="%22Cocozza%2C+C%2E%22">Cocozza, C.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Cheburkin%2C+A%2EK%2E%22">Cheburkin, A.K.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Shotyk%2C+W%2E%22">Shotyk, W.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Miano%2C+T%2EM%2E%22">Miano, T.M.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Applied+Geochemistry%22">Applied Geochemistry</searchLink>. Jan2008, Vol. 23 Issue 1, p25-33. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Energy+minerals%22">Energy minerals</searchLink><br /><searchLink fieldCode="DE" term="%22Fuel%22">Fuel</searchLink><br /><searchLink fieldCode="DE" term="%22Organic+acids%22">Organic acids</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Switzerland%22">Switzerland</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: Ombrotrophic bogs are useful records of the impact of historical human activity on heavy metal contamination. Several studies concerning the trace element record (mainly Pb and Hg) in these particular environments have been carried out in recent years, although the role of humic substances has often not been considered. In particular, of the components of peat organic matter, fulvic acids and low molecular weight compounds are generally responsible for the mobility of trace elements through the profile, while humic acids (HAs) are involved in the formation of more stable organo-mineral complexes. In order to study the parallel distribution of As, Cr, Ni, Rb, Ti and Zr in bulk peat and the corresponding HAs, a peat core (10×10×81cm) was collected from Etang de la Gruère (Switzerland) and cut into 27 slices of 3cm. The samples were freeze-dried and milled very finely, and HAs extracted from each sample. Both peat and HAs were analyzed using an energy-dispersive miniprobe X-ray fluorescence multielement analyser (EMMA-XRF). Of the considered elements, Ni showed a great affinity for the humic acid component, while Cr was concentrated mainly into humic material from the deeper layers. On the other hand, Ti, Zr and Rb seemed to reflect the variation in mineral material both in peat and HA samples, while the As content of both materials reflected the environmental conditions characterizing the bog. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Applied Geochemistry is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.apgeochem.2007.09.002 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 25 Subjects: – SubjectFull: Energy minerals Type: general – SubjectFull: Fuel Type: general – SubjectFull: Organic acids Type: general – SubjectFull: Switzerland Type: general Titles: – TitleFull: Distribution of As, Cr, Ni, Rb, Ti and Zr between peat and its humic fraction along an undisturbed ombrotrophic bog profile (NW Switzerland) Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zaccone, C. – PersonEntity: Name: NameFull: Cocozza, C. – PersonEntity: Name: NameFull: Cheburkin, A.K. – PersonEntity: Name: NameFull: Shotyk, W. – PersonEntity: Name: NameFull: Miano, T.M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2008 Type: published Y: 2008 Identifiers: – Type: issn-print Value: 08832927 Numbering: – Type: volume Value: 23 – Type: issue Value: 1 Titles: – TitleFull: Applied Geochemistry Type: main |
| ResultId | 1 |
