Speciation of five arsenic species (arsenite, arsenate, MMAAV, DMAAV and AsBet) in different kind of water by HPLC-ICP-MS

Ronkart, Sébastien; Laurent, Vincent; Carbonnelle, Philippe; Mabon, N.; Copin, A.; Barthélemy, Jean-Paul

doi:10.1016/j.chemosphere.2006.07.056

Cited by 63 publications

(31 citation statements)

References 30 publications

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“…High-performance liquid chromatography (HPLC) paired with inductively coupled plasma mass spectrometry (ICP-MS) has previously been used to characterize As compounds in < 30 kDa and < 5 kDa fractions (Geiszinger et al, 2002;Dobran and Zagury, 2006;Ronkart et al, 2007;Huang and Matzner, 2007). The mobile phase consisted of NaH 2 PO 4 (PBS, 2 mmol L ) and CH 3 OH (1%) (Sigma-Aldrich) at pH 11 and filtered at 0.2 µm (using cellulose acetate filters from Sartorius, Germany).…”

Section: Hplc-icp-msmentioning

confidence: 99%

Highlighting the wide variability in arsenic speciation in wetlands: A new insight into the control of the behavior of arsenic

Guénet

Davranche

Vantelon

et al. 2017

Geochimica et Cosmochimica Acta

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Highlighting the wide variability in arsenic speciation in wetlands: a new insight into the control of the behavior of arsenic. Geochimica et Cosmochimica Acta, Elsevier, 2017, 203, pp.284-302 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. 1Highlighting the wide variability in arsenic speciation in wetlands: AbstractAlthough the behavior of Arsenic (As) under reducing conditions in periods of high water levels in wetlands is well understood and documented, there is a lack of information under oxidizing conditions when the water level decreases. In this study, we were interested in the first stage of the oxidizing period, when oxidation products are still in suspension. A soil sample from the Naizin Kervidy wetland (France) was incubated in the laboratory to produce a reduced soil solution. The reduced solution was subsequently oxidized, filtered and ultrafiltered using decreasing pore size membranes (5 µm, 3 µm, 0.2 µm, 30 kDa and 5 kDa). The distribution of As and Fe was investigated in each size fraction of the oxidized solution and their speciations were studied using XAS, HPLC and SEC-ICP-MS. Organic matter was characterized using thermally assisted hydrolysis and methylation gas chromatography-mass spectrometry (THM-GC-MS) and fluorescence spectroscopy. The majority of the As was present as As(V) but a small amount of As(III) still remained despite the advanced oxidized conditions. In the > 0.2 µm fractions, the XAS analyses showed that As was associated, in the second shell, with Fe (As-Fe = 3.35 Å) as bidentate binuclear complexes and C (As-C = 2.90 Å), suggesting the integration of As in biological objects. In the < 30 kDa fraction, As was directly bound to C (As-C = 1.96 Å) in the first shell indicating the presence of organic As species. In the second shell, an As-Fe distance of 3.35 Å was found showing that 2 part of the As was still complexed with Fe. The 0.2 µm-30 kDa fraction was a transitional fraction in terms of the Fe species and OM composition. In this fraction, organic matter exhibited a more humic character (aromatic molecules) inducing an increasing cation binding capacity. As a consequence, in this fraction and in the smallest one, As, Fe and OM seemed to form ternary complexes in which the Fe or nano-oxides in the > 30 kDa fraction and as monomer, or cluster in < 30 kDa fraction acted as a bridge. In all of the fractions, a proportion of As(V) was present as organic methylated species. These organic species might be produced by several organisms (animal or plant) via a detoxification process. They seemed to be bound to the particulate and colloidal Fe/OM phases as well as integ...

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Section: Hplc-icp-msmentioning

confidence: 99%

Highlighting the wide variability in arsenic speciation in wetlands: A new insight into the control of the behavior of arsenic

Guénet

Davranche

Vantelon

et al. 2017

Geochimica et Cosmochimica Acta

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“…5 There is an urgent need to improve the prevailing water treatment technology because arsenite (AsO 2  ) and arsenate (AsO 4 3 ) are the two predominant arsenic species found in groundwater. 6 Adsorption has become an attractive and promising technology for arsenic extraction because of its simplicity, safety, ease of operation, maintenance, and handling, sludge-free operation, potential for regeneration, and possibility for the use of inexpensive adsorbent. In general, it is open considered to be the most effective treatment process for the removal of arsenic from aqueous environments at relatively low costs.…”

Section: Introductionmentioning

confidence: 99%

Efficient Removal of Arsenic Using Magnetic Multi-Granule Nanoclusters

Lee¹,

Cha²,

Sim³

et al. 2014

Bulletin of the Korean Chemical Society

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Magnetic multi-granule nanoclusters (MGNCs) were investigated as an inexpensive means to effectively remove arsenic from aqueous environment, particularly groundwater sources consumed by humans. Various size MGNCs were examined to determine both their capacity and efficiency for arsenic adsorption for different initial arsenic concentrations. The MGNCs showed highly efficient arsenic adsorption characteristics, thereby meeting the allowable safety limit of 10 g/L (ppb), prescribed by the World Health Organization (WHO), and confirming that 0.4 g and 0.6 g of MGNCs were sufficient to remove 0.5 mg/L and 1.0 mg/L of arsenate (AsO4 3 ) from water, respectively. Adsorption isotherm models for the MGNCs were used to estimate the adsorption parameters. They showed similar parameters for both the Langmuir and Sips models, confirming that the adsorption process in this work was active at a region of low arsenic concentration. The actual efficiency of arsenate removal was then tested against 1 L of artificial arsenic-contaminated groundwater with an arsenic concentration of 0.6 mg/L in the presence of competing ions. In this case, only 1.0 g of 100 nm MGNCs was sufficient to reduce the arsenic concentrations to below the WHO permissible safety limit for drinking water, without adjusting the pH or temperature, which is highly advantageous for practical field applications.

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“…Redox conditions primarily govern the dissolved arsenic speciation, with inorganic arsenic being the dominant form. Monomethylarsonic acid (MA) and dimethylarsinic acid (DMA) have commonly been measured at lower levels in surface and groundwaters (Hwang and Jiang, 1994;Palacios et al, 1997;Roig-Navarro et al, 2001;Garbarino et al, 2002;IAEA, 2002;Bednar et al, 2002a;Bednar et al, 2004;Ronkart et al, 2007), rainwater and pore water (Huang and Ilgen, 2004). The severe health implications of high arsenic intake reported in West Bengal, Bangladesh, Taiwan and Inner Mongolia (Smedley et al, 2005) were mainly attributable to the high levels of inorganic arsenic in well water.…”

Section: Introductionmentioning

confidence: 99%

Field based speciation of arsenic in UK and Argentinean water samples

Watts

O'Reilly

Marcilla

et al. 2010

Environ Geochem Health

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A field method is reported for the speciation of arsenic in water samples that is simple, rapid, safe to use beyond laboratory environments and cost effective. The method utilises solid phase extraction cartridges (SPE) in series for selective retention of arsenic species, followed by elution and measurement of eluted fractions by inductively coupled plasma mass spectrometry (ICP-MS) for 'total' arsenic. The method is suitable for on-site separation and preservation of arsenic species from water. Mean percentage accuracies (n = 25) for synthetic solutions containing 10 µg l -1 As of arsenite (As III ), arsenate (As V ), monomethylarsonic acid (MA) and dimethylarsinic acid (DMA), were 98 %, 101 %, 94 % and 105 %, respectively. Data are presented to demonstrate the influence of pH and competing anions on the retention of the arsenic species. The cartridges were tested in the UK and Argentina at sites where arsenic was known to be present in surface and groundwaters respectively at elevated concentrations and in challenging matrix conditions. In Argentinean groundwater, 4 to 20 % of speciated arsenic was present as MA and 20 to 73 % as As III . In UK surface waters, speciated arsenic was measured as 7 to 49 % MA and 12 to 42 % as DMA. Comparative data from the field method using SPE cartridges and laboratory method using liquid chromatography coupled to ICP-MS for all water samples provided a correlation of greater than 0.999 for As III and DMA, 0.991 for MA and 0.982 for As V (P < 0.01).

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Speciation of five arsenic species (arsenite, arsenate, MMAAV, DMAAV and AsBet) in different kind of water by HPLC-ICP-MS

Cited by 63 publications

References 30 publications

Highlighting the wide variability in arsenic speciation in wetlands: A new insight into the control of the behavior of arsenic

Highlighting the wide variability in arsenic speciation in wetlands: A new insight into the control of the behavior of arsenic

Efficient Removal of Arsenic Using Magnetic Multi-Granule Nanoclusters

Field based speciation of arsenic in UK and Argentinean water samples

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