Improvements of hydride generation for the speciation of arsenic in natural freshwater samples by HPLC-HG-AFS

Bohari, Y.; Astruc, A.; Astruc, M.; Cloud, J.

doi:10.1039/b101591p

Cited by 50 publications

(28 citation statements)

References 24 publications

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“…Indeed, these solutions were prepared with an arsenite form and this conversion can be related to the 2% Aquacheck Ò HNO 3 acidification and prove the arsenic-form stabilisation problem in water. This hypothesis was confirmed by Bohari et al (2001) who showed that 0.5% HNO 3 acidification changed arsenic speciation after ten days of storage. Thus, it will be important to consider this aspect for the preparation of certified water samples containing arsenic species, as this kind of sample does not exist yet.…”

Section: Arsenic Analysis In Reference Materialsmentioning

confidence: 60%

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

et al. 2007

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A method using Ion Chromatography hyphenated to an Inductively Coupled Plasma-Mass Spectrometer has been developed to accurately determine arsenite (As III ), arsenate (As V ), mono-methylarsonic acid (MMAA V ), dimethylarsinic acid (DMAA V ) and arsenobetaine (AsBet) in different water matrices. The developed method showed a high sensitivity with detection limits for each arsenic species close to 0.4 pg injected. Arsenite and arsenate were the major species found in surface and well waters, but AsBet and DMAA V were found in some surface waters, which has never been reported before, while in some natural mineral waters located in volcanic region, the arsenic content exceeded the maximal admissible arsenic content by European legislation standards and the predominant form was As V .

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Section: Arsenic Analysis In Reference Materialsmentioning

confidence: 60%

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

et al. 2007

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“…In order to save reagents and sample, while maintaining high sensitivity, a number of modifications to the way in which the solutions are supplied to the system have been proposed. Besides flow injection [1][2][3] and sequential injection procedures [4,5], the approaches include the use of flow manifolds provided with several solenoid valves for commutation (multicommutated flow injection analysis) [6][7][8][9] or computer-controlled syringes (multisyringe flow injection analysis) [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Multipumping flow system for improving hydride generation atomic fluorescence spectrometric determinations

López-Garcı́a

Ruíz-Alcaraz

Hernández‐Córdoba

2006

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…Chromatographic separation conditions were based in the works previously reported Bohari et. al 14,15 and are provided in table 2.…”

Section: Variables Conditionsmentioning

confidence: 99%

Implementation of an Analytical Method for the Determination of Inorganic Arsenic Species in Occupationally Exposed Human Urine Samples and Its Toxic Effects on Epithelial Cells of Renal Collecting Tubule

Roldán

Salinas-Parra

González³

et al. 2016

J. Chil. Chem. Soc.

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In this study a method was implemented for the determination of total As and its inorganic species in human urine by HPLC-HG-AFS. The method was applied to workers occupationally exposed to mining and thermoelectric operations. Results shows high levels of As in urine up to 188±4 µg L -1 and As(III) up to 10.7±0.6 µg L -1. Toxic effects of As(III) at the concentration levels founded in human urine were evaluated over the morphology and fibrosis of renal epithelial collecting duct cells in vitro. Our results suggest that urinary tract epithelial renal tubular cells exposed to this concentration of As(III) result in epithelialmesenchymal transition.

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Improvements of hydride generation for the speciation of arsenic in natural freshwater samples by HPLC-HG-AFS

Cited by 50 publications

References 24 publications

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

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

Multipumping flow system for improving hydride generation atomic fluorescence spectrometric determinations

Implementation of an Analytical Method for the Determination of Inorganic Arsenic Species in Occupationally Exposed Human Urine Samples and Its Toxic Effects on Epithelial Cells of Renal Collecting Tubule

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