Rotating coiled columns in the speciation analysis of natural samples: Dynamic fractionation of element forms in soils, sludges, and bottom sediments.
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| Title: | Rotating coiled columns in the speciation analysis of natural samples: Dynamic fractionation of element forms in soils, sludges, and bottom sediments. |
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| Authors: | Fedotov, P.1 |
| Source: | Journal of Analytical Chemistry. May2012, Vol. 67 Issue 5, p399-413. 15p. |
| Subjects: | Soil testing, Characterization of sewage sludge, Heavy metals, Bioavailability, Native element minerals |
| Abstract: | The potentials of dynamic extraction in rotating coiled columns ( RCCs) for the speciation analysis of soils, sludges, and bottom sediments is discussed on an example of the fractionation of element forms. A comparative study of the results of the fractionation of the forms of heavy metals differing in physicochemical mobility and bioavailability (Zn, Cd, Pb, Cu, Ni, Cr), obtained using a number of procedures of sequential extraction, is performed. Particular attention is paid to mercury, which is quite different from other metals in biogeochemical properties. Conditions are described for the dynamic fractionation of arsenic species occurring in natural samples in anionic forms. It is revealed that, in contrast to batch extraction, the continuous renewal of the eluent in a rotating column eliminates the problem of readsorption and overlapping of isolated fractions and enables the correct assessment of the concentration of the most mobile and bioavailable forms of toxic elements. A hyphenated method for the fractionation and determination of certain forms of elements (based on the ICP-AES detection of elements in the column eluate in the on-line mode) is described, ensuring the processing and a real-time control of the dynamic extraction of the forms of elements. The kinetic aspects of selective leaching are considered. It is shown that a comparison of the elution curves of micro- and macrocomponents makes possible a judgment about the selectivity of the leaching reagent, optimization of the conditions for the isolation of each fraction, and the investigation of the features of the binding of heavy metals and matrix elements in soils and bottom sediments. Some recommendations are given for the dynamic fractionation of the forms of elements in soils, sludges, and bottom sediments in RCCs. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Analytical Chemistry is the property of Springer Nature 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 | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 74714456 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Rotating coiled columns in the speciation analysis of natural samples: Dynamic fractionation of element forms in soils, sludges, and bottom sediments. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Fedotov%2C+P%2E%22">Fedotov, P.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Analytical+Chemistry%22">Journal of Analytical Chemistry</searchLink>. May2012, Vol. 67 Issue 5, p399-413. 15p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Soil+testing%22">Soil testing</searchLink><br /><searchLink fieldCode="DE" term="%22Characterization+of+sewage+sludge%22">Characterization of sewage sludge</searchLink><br /><searchLink fieldCode="DE" term="%22Heavy+metals%22">Heavy metals</searchLink><br /><searchLink fieldCode="DE" term="%22Bioavailability%22">Bioavailability</searchLink><br /><searchLink fieldCode="DE" term="%22Native+element+minerals%22">Native element minerals</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The potentials of dynamic extraction in rotating coiled columns ( RCCs) for the speciation analysis of soils, sludges, and bottom sediments is discussed on an example of the fractionation of element forms. A comparative study of the results of the fractionation of the forms of heavy metals differing in physicochemical mobility and bioavailability (Zn, Cd, Pb, Cu, Ni, Cr), obtained using a number of procedures of sequential extraction, is performed. Particular attention is paid to mercury, which is quite different from other metals in biogeochemical properties. Conditions are described for the dynamic fractionation of arsenic species occurring in natural samples in anionic forms. It is revealed that, in contrast to batch extraction, the continuous renewal of the eluent in a rotating column eliminates the problem of readsorption and overlapping of isolated fractions and enables the correct assessment of the concentration of the most mobile and bioavailable forms of toxic elements. A hyphenated method for the fractionation and determination of certain forms of elements (based on the ICP-AES detection of elements in the column eluate in the on-line mode) is described, ensuring the processing and a real-time control of the dynamic extraction of the forms of elements. The kinetic aspects of selective leaching are considered. It is shown that a comparison of the elution curves of micro- and macrocomponents makes possible a judgment about the selectivity of the leaching reagent, optimization of the conditions for the isolation of each fraction, and the investigation of the features of the binding of heavy metals and matrix elements in soils and bottom sediments. Some recommendations are given for the dynamic fractionation of the forms of elements in soils, sludges, and bottom sediments in RCCs. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Analytical Chemistry is the property of Springer Nature 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: 10.1134/S106193481205005X Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 399 Subjects: – SubjectFull: Soil testing Type: general – SubjectFull: Characterization of sewage sludge Type: general – SubjectFull: Heavy metals Type: general – SubjectFull: Bioavailability Type: general – SubjectFull: Native element minerals Type: general Titles: – TitleFull: Rotating coiled columns in the speciation analysis of natural samples: Dynamic fractionation of element forms in soils, sludges, and bottom sediments. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Fedotov, P. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2012 Type: published Y: 2012 Identifiers: – Type: issn-print Value: 10619348 Numbering: – Type: volume Value: 67 – Type: issue Value: 5 Titles: – TitleFull: Journal of Analytical Chemistry Type: main |
| ResultId | 1 |
