Comparison of dry mineralization and microwave-oven digestion for the determination of arsenic in mussel products by platform in furnace Zeeman-effect atomic absorption spectrometry

Ybáñez, N.; Cervera, M. Luisa; Montoro, R.; Guárdia, Miguel de la

doi:10.1039/ja9910600379

Cited by 37 publications

(9 citation statements)

References 8 publications

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“…The powder obtained was mineralized as follows (Ybáñez et al 1991): 12.5 mL of HNO 3 50% v/v + 2.5 of coadjuvant agent (Mg (NO 3 ) 2 ·6H 2 O 20% w/v+MgO 2% w/v) were added to a porcelain crucible containing 0.6 g of ground dried sample. The crucibles were put in a sand bath until total dryness at a maximum temperature of 130°C.…”

Section: Mollusks Sampling and Analysismentioning

confidence: 99%

As, Cd, Cu, Mn, Pb, and Zn Contents in Sediments and Mollusks (Hexaplex trunculus and Tapes decussatus) from Coastal Zones of a Mediterranean Lagoon (Mar Menor, SE Spain) Affected by Mining Wastes

María-Cervantes

Jiménez-Cárceles

Álvarez-Rogel

2008

Water Air Soil Pollut

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Individuals of Hexaplex trunculus, Tapes decussatus, and associated sediments were collected from 16 coastal sampling plots of the Mar Menor lagoon (SE Spain), and the metal and As concentrations were determined. The sediments had maximum values (in milligrams per kilogram dry weight [d.w.]) of 7,132 for Zn; 6,975 for Pb; 5,039 for Mn; 501 for As; 74 for Cu; and 9.1 for Cd. Specimens of H. trunculus could be collected from all the sampling plots, and it was found that concentrations of Zn (between 883 and 3,130 mg kg −1 d.w.), Pb (between 0.09 and 222 mg kg −1 d.w.), Mn (between 7.6 and 17.7 mg kg −1 d.w.), As (between 144 and 418 mg kg −1 d.w.), and Cd (between undetectable and 8.4 mg kg −1 d.w.) in soft tissues significantly increased when concentrations in sediments increased. H. trunculus apparently regulated Cu assimilation (concentrations between 17.7 and 47.2 mg kg −1 d.w.) in its soft tissues. T. decussatus was very scarce or even absent from sites with higher metal and As contents in the sediments. Hence, H. trunculus could be used as a bioindicator of metals and As pollution, but not T. decussatus. Based on our results, a human health risk exists because the species analyzed are collected from the studied zone and so are consumed by the population.

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Section: Mollusks Sampling and Analysismentioning

confidence: 99%

As, Cd, Cu, Mn, Pb, and Zn Contents in Sediments and Mollusks (Hexaplex trunculus and Tapes decussatus) from Coastal Zones of a Mediterranean Lagoon (Mar Menor, SE Spain) Affected by Mining Wastes

María-Cervantes

Jiménez-Cárceles

Álvarez-Rogel

2008

Water Air Soil Pollut

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“…After evaporation on a sand bath until total dryness, perform a dry-ashing of the sample in accordance with the programme described in a previous paper. 17 The determination of inorganic arsenic in the method proposed was performed by means of the following procedure: add 2.5 ml of ashing aid suspension (20% m/v Mg(NO 3 )•6H 2 O and 2% m/v MgO) and 10 ml of concentrated HNO 3 to the combined back-extraction phases. Evaporate and treat in the same way as for total arsenic.…”

Section: Determination Of Total and Inorganic Arsenic By Hgaasmentioning

confidence: 99%

“…[12][13][14] Other authors extracted the arsenic species directly with methanolwater. [15][16][17] Inorganic arsenic was determined in the extracts using high performance liquid chromatography coupled to inductively coupled plasma mass spectrometry (HPLC-ICP-MS), [12][13][14] open column anion and cation exchange and instrumental neutron activation analysis (INAA) or HG-AAS, 15 or high performance liquid chromatography coupled to hydraulic high-pressure nebulizer coupled to inductively coupled plasma mass spectrometry (HPLC-HHPN-ICP-MS). 16 All the authors quoted used biological samples and/or certified reference materials.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the solubilization, extraction and determination of inorganic arsenic [As(III) + As(V)] in seafood products by acid digestion, solvent extraction and hydride generation atomic absorption spectrometry

Muñoz¹,

Vélez²,

Montoro³

1999

Analyst

138

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A method for the selective quantitative determination of inorganic arsenic [As(III) + As(V)] in seafood was developed. In order to do so, various procedures for the solubilization and extraction of inorganic arsenic quoted in the literature were tested. None provided satisfactory recoveries for As(III) and As(V) in real samples. Consequently, a methodology was developed which included solubilization with HCl and subsequent extraction with chloroform. The arsenic was solubilized in 9 mol l-1 hydrochloric acid. After reduction by hydrobromic acid and hydrazine sulfate, the inorganic arsenic was extracted into chloroform, back-extracted into 1 mol l-1 HCl, dry-ashed, and quantified by hydride generation-atomic absorption spectrometry (HG-AAS). The analytical features of the method are as follows: detection limit, 3.07 ng g-1 As (fresh mass); precision (RSD), 4.0%; recovery, As(III) 99%, As(V) 96%. In the optimized conditions, other arsenic species--dimethylarsinic acid (DMA), arsenobetaine (AB), arsenocholine (AC) and tetramethylarsonium-ion (TMA+)--were not co-extracted. However, different percentages of minor species were extracted with chloroform: monomethylarsonic acid (MMA) 100%, and trimethylarsine oxide (TMAO) 3-10%. Real samples and reference materials of seafood (DORM-1, DORM-2, TORT-2, CRM-278 and SRM-1566a) were analyzed. The analysis of DORM-1 provided an inorganic arsenic value of 124 +/- 4 ng g-1 As, dry mass (dm), which is very close to the value obtained by other authors using high performance liquid chromatography-inductively coupled plasma-mass spectrometry (HPLC-ICP-MS) and ionic chromatography-hydride generation-atomic absorption spectrometry (IC-HG-AAS).

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“…2.5 ml of a reagent solution containing Mg(NO 3 ) 2 Á6H 2 O 20 % (w/v) ? MgO 2 % (w/v) (Ybáñez et al 1991). The Mg reagent accelerates the oxidation of the organic matter and prevents the volatilization of As (Damkröger et al 1997).…”

Section: Agricultural Zonesmentioning

confidence: 99%

Role of rhizosphere and soil properties for the phytomanagement of a salt marsh polluted by mining wastes

Conesa¹,

María-Cervantes²,

Álvarez-Rogel³

et al. 2013

Int. J. Environ. Sci. Technol.

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The goal of this study was to evaluate the soil properties and their modifications within the rhizosphere of spontaneous vegetation as key factors to assess the phytomanagement of a salt marsh polluted by mining wastes. A field survey was performed based on a plot sampling design. The results provided by the analyses of rhizospheric soil (pH, electrical conductivity (EC), organic carbon, total nitrogen, etc.) and metal(loid)s' phytoavailability (assessed by EDTA) were discussed and related to plant metal uptake. The averages of pH and EC values of the bulk soil and rhizospheric samples were in the range of neutral to slightly alkaline (pH 7-8) to saline ([2 dS m -1 ), respectively. Heavy metal and As concentrations (e.g. *600 mg kg -1 As, *50 mg kg -1 Cd, *11,000 mg kgPb) were higher in the rhizosphere for both total and EDTA-extractable fraction. Phragmites australis uptaked the highest concentrations in roots (e.g. *66 mg kg -1 As, *1,770 mg kg -1 Zn) but not in shoots, for which most of plant species showed low values for Zn (\300 mg kg -1 ) but not for Cd ([0.5 mg kg -1 ) or Pb (*20-40 mg kg -1 ). Vegetation distribution in the studied salt marsh looked to be more affected by salinity than by metal pollution. The free availability of water for plants and the incoming nutrient-enriched effluents which flow through the salt marsh may have hindered the metal(loid)s' phytotoxicity. The phytomanagement of these polluted areas employing the spontaneous vegetation is a good option in order to improve the ecological indicators and to prevent the transport of pollutants to nearby areas.

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Comparison of dry mineralization and microwave-oven digestion for the determination of arsenic in mussel products by platform in furnace Zeeman-effect atomic absorption spectrometry

Cited by 37 publications

References 8 publications

As, Cd, Cu, Mn, Pb, and Zn Contents in Sediments and Mollusks (Hexaplex trunculus and Tapes decussatus) from Coastal Zones of a Mediterranean Lagoon (Mar Menor, SE Spain) Affected by Mining Wastes

As, Cd, Cu, Mn, Pb, and Zn Contents in Sediments and Mollusks (Hexaplex trunculus and Tapes decussatus) from Coastal Zones of a Mediterranean Lagoon (Mar Menor, SE Spain) Affected by Mining Wastes

Optimization of the solubilization, extraction and determination of inorganic arsenic [As(III) + As(V)] in seafood products by acid digestion, solvent extraction and hydride generation atomic absorption spectrometry

Role of rhizosphere and soil properties for the phytomanagement of a salt marsh polluted by mining wastes

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