Use of a Chelating Agent to Determine the Metal Availability for Leaching From Soils and Wastes

Garrabrants, Andrew C.; Kosson, David S.

doi:10.1016/s0166-1116(97)80206-3

Cited by 16 publications

(23 citation statements)

References 13 publications

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“…The experiments showed that the addition of EDTA to the extraction media did not effectively prevent the decrease in As III concentration with extraction time, in contrast to the results obtained for water samples where EDTA was shown to be useful in protecting As III species (Bednar et al, 2002;Gallagher et al, 2001;Garrabrants and Kosson, 2000), strong matrix effects from the high metal concentrations in PACS-2 extracts is one possible reason for the inability of EDTA solution to preserve As III . The Everglades soil was also spiked with 2 μg/g As III and extracted with 10 mM phosphate in the presence of 50 mM of EDTA.…”

Section: Soil Extraction In the Presence Of Edtamentioning

confidence: 57%

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Extraction of arsenate and arsenite species from soils and sediments

Georgiadis

Cai

Solo‐Gabriele

2006

Environmental Pollution

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The primary objective of this study was to develop a simple method that can be used to extract the more readily mobilizable and bioavailable arsenic species from soil and sediment while at the same time minimizing the transformation between (As III ) and (As V ), the two most commonly found arsenic species in the environment. Several extraction strategies were evaluated using phosphate as extractant in combination with either ethylenediaminetetraacetic acid (EDTA), hydroxylamine hydrochloride (NH 2 OH·HCl), or sodium diethyldithiocarbamate trihydrate (NaDDC).The addition of EDTA in the phosphate solution did not prevent As III from oxidation. While promising results were shown when 1% NH 2 OH·HCl was added, conversion of As III began to occur with extended extraction time (>12 h). Good results were achieved using 10 mM phosphate and 0.5% NaDDC where As III oxidation was clearly minimized. The combined phosphate and NaDDC solution was applied to several soil and sediment samples. As III spiked was quantitatively recovered in all soil types tested.

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Section: Soil Extraction In the Presence Of Edtamentioning

confidence: 57%

“…EDTA has been successfully used in water analysis for the preservation of arsenic and selenium species in the presence of iron (Bednar et al, 2002;Gallagher et al, 2001;Garrabrants and Kosson, 2000). The premise is that EDTA will chelate with metals such as Fe and Mn thereby minimizing oxidation.…”

Section: Soil Extraction In the Presence Of Edtamentioning

confidence: 99%

Extraction of arsenate and arsenite species from soils and sediments

Georgiadis

Cai

Solo‐Gabriele

2006

Environmental Pollution

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“…In the study of the potential mobility of inorganic species in waste materials and soils, Garrabrants and Kosson (2002) confirm that EDTA extraction procedure yields a different operationally defined availability than the availability estimated by a pH stat approach (NEN7341). Nevertheless, regardless of the approach, the determination of the 'potentially available pool' of heavy metals and As didn't allow a clear distinction between Fe-rich sediments with different times since exposure to oxidising conditions.…”

Section: Edta-and Acetic Acid Extractions Versus Ph Statmentioning

confidence: 88%

Comparison of metal release from recent and aged Fe-rich sediments

Cappuyns

Swennen

2006

Geoderma

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“…And to be complete, the study of the speciation of metals in a soil is often carried out in two stages. The first approach of the speciation study examined the mobility of metals in the soil by using sequential extraction studies for elements such as Cd, Pb, Cu, Zn, and Cr, which demonstrated high mobilization potential in the oxydable, acido-soluble, and exchangeable forms from the soils (Noubissie et al 2011;Mancean et al 2000;Garrabrants and Kosson 2000). The present work, which consists of the study of organometallic compounds such as Hg, Sn, and Pb in soil, is the continuation of this previous work on market garden soil in Ngaoundéré carried out by Noubissié et al (2016).…”

Section: Introductionmentioning

confidence: 99%

Speciation of organometallic compounds of Hg, Sn, and Pb in the market garden soil in Ngaoundéré (Cameroon)

Noubissié

Ngassoum

Ali

et al. 2017

Euro-Mediterr J Environ Integr

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The objective of this work is to study the contamination of market garden soils by organomercury compounds (OMC), organotin compounds (OTC), and organolead compounds (OLC) using combustion debris (CD) as fertilizers. Therefore, two parcels of land used for gardening are rented on two sites. Soils were plowed and amended with CD. Samples of non-amended and amended soils were treated and then organometallic compounds of Hg, Sn, and Pb were analyzed by GC-ICP-MS. The results obtained revealed the presence of methyl-mercury (MeHg) in the soil at concentrations varying from non-detected in non-amended soil to 171.6 lg/kg in amended soil. Among the OLC identified, tetra-ethyl-lead (TEtPb) is the most represented in the soil with concentrations ranging from 18.45 to 44,612 lg/kg. OTC has also been identified with a predominance of mono-butyl-tin (MBT) followed by trimethyl-tin (TMT) and di-methyl-tin (DMT). Soil treatments to CD have a significant influence on soil contamination to OMC, OTC, and OLC. This means that a significant amount of organometallic compounds found in amended soils would come from either direct or indirect CD.

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Use of a Chelating Agent to Determine the Metal Availability for Leaching From Soils and Wastes

Cited by 16 publications

References 13 publications

Extraction of arsenate and arsenite species from soils and sediments

Extraction of arsenate and arsenite species from soils and sediments

Comparison of metal release from recent and aged Fe-rich sediments

Speciation of organometallic compounds of Hg, Sn, and Pb in the market garden soil in Ngaoundéré (Cameroon)

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