Arsenic speciation including ‘hidden’ arsenic in natural waters

Hasegawa, Hiroshi; Matsui, Masanao; Okamura, Shinsuke; Hojo, Masashi; Iwasaki, Naohiko; Sohrin, Yoshiki

doi:10.1002/(sici)1099-0739(199902)13:2<113::aid-aoc837>3.3.co;2-1

Cited by 6 publications

(10 citation statements)

References 3 publications

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“…The dynamics of arsenate exchange between water and adsorbing colloids are analogous to those [20]. Arsenate and dimethylarsinic acid (DMAA) are the major species of arsenic in toxic aquatic systems [21]. Uptake behavior of these two arsenic species could reflect the influence of inorganic and organic arsenic species and their interactions with PO 4 3− and Fe ions.…”

Section: Introductionmentioning

confidence: 99%

Arsenic uptake by aquatic macrophyte Spirodela polyrhiza L.: Interactions with phosphate and iron

Rahman

Hasegawa

Ueda

et al. 2008

Journal of Hazardous Materials

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The uptake of arsenate (As(V)) and dimethylarsinic acid (DMAA) by aquatic macrophyte Spirodela polyrhiza L. was investigated to determine the influence of arsenic interaction with PO4(3-) and Fe ions. Plants were grown hydroponically on standard Murashige and Skoog (MS) culture solutions. Arsenic concentrations in Fe-oxide (Fe-plaque) on plant surfaces were determined by citrate-bicarbonate-ethylenediaminetetraacetic acid (CBE) technique. S. polyrhiza L. accumulated 51-fold arsenic from arsenate solution compared to that from DMAA solution with initial concentrations of 4.0 and 0.02microM of arsenic and phosphate, respectively. The arsenate uptake was negatively (p<0.001) correlated with phosphate uptake and positively (p<0.05) correlated with iron uptake. About 56% of the total arsenic was accumulated into the plant tissues while 44% was adsorbed on Fe-plaque (CBE-extract), when the plants were grown on arsenate solution. The DMAA uptake into the plant was neither affected by the phosphate concentrations nor correlated (p>0.05) with iron accumulation. The results suggest that adsorption of arsenate on Fe-plaque of the surface of S. polyrhiza L. contributes to the arsenic uptake significantly. Thus, arsenate uptake in S. polyrhiza L. occurred through the phosphate uptake pathway and by physico-chemical adsorption on Fe-plaques of plant surfaces as well. The S. polyrhiza L. uses different mechanisms for DMAA uptake.

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Section: Introductionmentioning

confidence: 99%

Arsenic uptake by aquatic macrophyte Spirodela polyrhiza L.: Interactions with phosphate and iron

Rahman

Hasegawa

Ueda

et al. 2008

Journal of Hazardous Materials

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“…In lake waters from Ontario, Azcue and Nriagu (1995) found As(III) concentrations of 7-75 µg/L, As(V) of 19-58 µg/L and organic As of 0.01-1.50 µg/L (DMAA, MMAA were dominant). The role of organic species may be more important close to the sediment-water interface (Hasegawa et al, 1999). In groundwaters, As(III) was dominant in most of the detected samples (53-98%) (Kim et al, 2002).…”

Section: Arsenic Speciation In Natural Water Environmentmentioning

confidence: 96%

“…However, it was reported that this interference was efficiently eliminated by collision of ArCl molecules with helium introduced prior to mass spectrometer in reaction cell (Nakazato et al, 2002). These analytical procedures enabled the highly sensitive determination of As(V), As(III), MMAA and DMAA at pg/mL level (Cabon and Cabon, 2000;Featherstone et al, 2000;Hasegawa et al, 1999) in seawater samples (even a large volume (200 mL)) by ion-exclusion chromatography (polystyrene resin, dilute nitric acid at pH = 2.0 as the eluent) combined with HG-ICP-MS (Nakazato et al, 2002). The method is easy to operate and no sample pre-treatment is needed.…”

Section: Arsenic Speciation Hyphenated Techniquesmentioning

confidence: 99%

Arsenic Speciation Analysis in Water Samples: A Review of The Hyphenated Techniques

Terlecka

2005

Environ Monit Assess

106

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Interests in the determination of different arsenic species in natural waters is caused by the fact that toxic effects of arsenic are connected with its chemical forms and oxidation states. In determinations of water samples inorganic arsenate (As(III), As(V)), methylated metabolities (MMAA, DMAA) and other organic forms such as AsB, AsC, arsenosugars or arsenic containing lipids have the most importance. This article provides information about occurrence of the dominant arsenic forms in various water environments. The main factors controlling arsenic speciation in water are described. The quantification of species is difficult because the concentrations of different forms in water samples are relatively low compared to the detection limits of the available analytical techniques. Several hyphenated methods used in arsenic speciation analysis are described. Specific advantages and disadvantages of methods can define their application for a particular sample analysis. Insufficient selectivity and sensitivity of arsenic speciation methods cause searching for a new or modifications already existing techniques. Some aspects of improvement and modifications of the methods are highlighted.

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“…However, natural abundance of inorganic As species are higher. It is well known that arsenite (AsO 3 3− ) and arsine (AsH 3 ) dominate at reducing atmosphere while arsenate (AsO 4 3− ) in oxygenized environments [2,3]. Consumption of low levels As over a longer period is harmful with a high risk of cancer [4].…”

Section: Introductionmentioning

confidence: 99%

Pyridine Based Fluorescence Probe: Simultaneous Detection and Removal of Arsenate from Real Samples with Living Cell Imaging Properties

et al. 2015

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Pyridine based fluorescence probe, DFPPIC and its functionalized Merrifield polymer has been synthesized, characterized and used as an arsenate selective fluorescence sensor. Arsenate induced fluorescence enhancement is attributed to inter-molecular H-bonding assisted CHEF process. The detection limit for arsenate is 0.001 μM, much below the WHO recommended tolerance level in drinking water. DFPPIC can detect intracellular arsenate in drinking water of Purbasthali, West Bengal, India efficiently. Graphical Abstract DFPPIC and its Merrifield conjugate polymer are used for selective determination and removal of arsenate from real drinking water samples of Purbasthali, a highly arsenic contaminated region of West Bengal, India. DFPPIC is very promising to imaging arsenate in living cells.

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Arsenic speciation including ‘hidden’ arsenic in natural waters

Cited by 6 publications

References 3 publications

Arsenic uptake by aquatic macrophyte Spirodela polyrhiza L.: Interactions with phosphate and iron

Arsenic uptake by aquatic macrophyte Spirodela polyrhiza L.: Interactions with phosphate and iron

Arsenic Speciation Analysis in Water Samples: A Review of The Hyphenated Techniques

Pyridine Based Fluorescence Probe: Simultaneous Detection and Removal of Arsenate from Real Samples with Living Cell Imaging Properties

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