Evaluation and Comparison of Two Selective Extraction Procedures for Heavy Metal Speciation in Sediments

Ianni, Carmela; Ruggieri, Nicoletta; Rivaro, Paola; Frache, Roberto

doi:10.2116/analsci.17.1273

Cited by 41 publications

(29 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…22 An example of the operationally defined nature of the fractions, is that, in some soils, high concentrations were extracted into the second fraction even in the presence of low carbonate contents, as in the case of the contaminated soil in Pieve Vergonte described above. It is possible that the extracted metals were initially weakly sorbed to some sites of the surface of clays and Fe/Mn oxohydroxides or weakly associated with organic matter.…”

Section: Characterization Of Soil Properties Behaviour and Plant Avamentioning

confidence: 99%

The Use of Sequential Extraction Procedures for the Characterization and Management of Contaminated Soils

Abollino¹,

Giacomino²,

Malandrino³

et al. 2005

Annali di Chimica

View full text Add to dashboard Cite

Metal mobility and availability in solid samples, such as soils, sediments and sludges, is frequently studied with sequential extraction procedures, which allow to partition the total metal content into classes of different reactivity. From the experimental point of view, each extraction step requires many practical operations, which can represent sources of error if they are not properly executed. The first part of the paper gives indication on how to perform sequential extractions, from sample pretreatment to extract analysis, in order to reduce experimental errors. The second part describes the main applications of sequential extraction schemes for the characterization and management of contaminated soils: the assessment of the risks associated to metal pollution, the evaluation of the feasibility and efficiency of remediation techniques, the study of soil properties and of metal behaviour and plant availability.

show abstract

Section: Characterization Of Soil Properties Behaviour and Plant Avamentioning

confidence: 99%

The Use of Sequential Extraction Procedures for the Characterization and Management of Contaminated Soils

Abollino¹,

Giacomino²,

Malandrino³

et al. 2005

Annali di Chimica

View full text Add to dashboard Cite

show abstract

“…The method has proved reproducible and has given good recoveries. 2,[8][9][10][11][12][13][14] The present study reports results from the application of a BCR sequential extraction procedure to the study of the chemical associations, indirectly the mobility and bioavailability, of six metals, chromium, copper, manganese, nickel, lead, and zinc, in (i) sediments sampled from two polluted rivers, the Fès and Sebou, (ii) soils irrigated by polluted water from these two rivers. The contents of Cr, Cu, Mn, Ni, Pb and Zn in the extracts were measured by flame atomic absorption spectrometry (FAAS).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the ability to determine the chemical form or kind of association with different mineralogical phases in soils and sediments has become increasingly important. 2 To date, it has generally been accepted that the most appropriate methods to evaluate the chemical partitioning patterns are selective sequential extraction procedures, which are widely used to assess long term emission potential of pollutants and to predict the metal distribution among different fractions, usually including exchangeable ones, associated to the carbonates, associated to Fe-Mn oxides (or reducible), associated to organic matter and sulphides (or oxidisable) and residual fractions TABLE 1. A large number of sequential extraction procedures have been developed for the determination of heavy metals in contaminated soils and sediments.…”

Section: Introductionmentioning

confidence: 99%

Three‐Stage Sequential Extraction Procedure for Metal Partitioning in Polluted Soils and Sediments

2004

View full text Add to dashboard Cite

The sequential extraction procedure proposed by the Standard, Measurements and Testing program "SM&T" of the European Union has been applied to evaluate the amounts of Cr, Cu, Mn, Ni, Pb and Zn, extracted at each stage and indirectly their mobility and bioavailability in soil and sediment samples from a polluted area. Analysis of the extracts was carried out by flame atomic absorption spectrometry (FAAS). No significant matrix interferences were found except for Cr in the acetic acid and hydroxylammonium chloride extracts, which required determination by the standard additions method. Both of soils and sediments studied show similar partitioning of Mn, Ni, Cu and Cr. Mn and Ni can be considered to have significant component bound to the acido-soluble fraction, whereas, Cr and Cu occur largely in the organic and residual phases. The partitioning of Pb and Zn was different between soil and sediment. In terms of mobility and bioavailability, in soils, Ni and Mn can be regarded as moderately available followed by a lower availability of Pb while Cu, Zn and Cr have a very limited availability. In sediments, a higher availability (short-medium term) of Mn and Zn was presumed followed by a lower availability of Ni and Pb, whereas, Cu and Cr, occurring largely in the organic and residual phases, were of very limited availability.

show abstract

“…[11][12][13][14][15] One of the tools used to evaluate the behavior of trace metals in river sediments is the sequential extraction method. 16 Fractionation by sequential extraction provides valuable information regarding the relationship between metals and sediments. In this procedure, the sample is treated with a succession of extraction reagents with the specific intention of dissolving the different phases (or fractions) of sediment and thereby allowing the determination of the associated metals.…”

Section: Introductionmentioning

confidence: 99%

Influence of the rainfall regime on the mobility of zn, cd, ni, cu, mn and fe in the surface sediments of the contas river located in the Brazilian semi-arid region

Santos¹,

Santos²,

Santos³

2012

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

Neste estudo foram avaliadas as influências do regime de chuva e do uso do solo na mobilidade de Zn, Cd, Ni, Cu, Mn e Fe no sedimento do Rio de Contas (Estado da Bahia, Brasil), com base no método de fracionamento utilizando a extração sequencial em três etapas. O estudo foi realizado no curso médio do Rio de Contas, em uma área que engloba o perímetro urbano e parte da zona rural da cidade de Jequié, influenciada pelas atividades agrícola, urbana e industrial. As determinações dos metais foram realizadas por espectrometria de absorção atômica por chama (FAAS). Os resultados deste estudo mostraram que as concentrações dos metais nas frações solúveis dos sedimentos estão diretamente associadas aos índices pluviométricos ocorridos na região. O estudo indica também que, dos elementos avaliados, o Zn, Cu, Cd e Ni apresentam maiores enriquecimentos no sedimento dentro do perímetro urbano.In this study, the influences of the rainfall regimes and of the land use in the mobility of Zn, Cd, Ni, Cu, Mn and Fe in the surface sediment of the Contas River (Bahia State, Brazil) was evaluated with basis on the fractionation method that uses a three-step sequential extraction. The study was conducted in the middle of the Contas River, in an area that encompasses the urban perimeter and part of the rural zone of Jequié City that is influenced by agricultural, urban and industrial activities. The determinations of metals were conducted by flame atomic absorption spectrometry (FAAS). The result obtained from this study indicates that the concentrations of the metals in the soluble fractions of the sediments are directly associated with rainfall indices in the region. The study also indicated that the metals Zn, Cu, Cd and Ni exhibit higher concentrations in the sediments within the city.

show abstract

Evaluation and Comparison of Two Selective Extraction Procedures for Heavy Metal Speciation in Sediments

Cited by 41 publications

References 20 publications

The Use of Sequential Extraction Procedures for the Characterization and Management of Contaminated Soils

The Use of Sequential Extraction Procedures for the Characterization and Management of Contaminated Soils

Three‐Stage Sequential Extraction Procedure for Metal Partitioning in Polluted Soils and Sediments

Influence of the rainfall regime on the mobility of zn, cd, ni, cu, mn and fe in the surface sediments of the contas river located in the Brazilian semi-arid region

Contact Info

Product

Resources

About