The oxidation of arsenite in aqueous solutions

Kuehnelt, Doris; Goessler, Walter; Irgolic, Kurt J.

doi:10.1007/978-94-011-5864-0_4

Cited by 16 publications

(37 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2), AB is the predominant metabolite together with smaller amounts of the unusual precursor arsenocholine (AC). Essentially the same pattern was reported for Amanita muscaria by Kuehnelt et al 9 The Aphyllophorales are an enormously heterogeneous group, especially from the morphological point of view. Many of its representatives grow on wood, a substrate poor in arsenic, and were therefore not investigated.…”

Section: Taxonomy and Arsenic Compoundssupporting

confidence: 65%

“…The VG Plasma Quad 2 Turbo Plus ICP-MS with a hydraulic high-pressure nebulizer (HHPN) (Knauer, Berlin, Germany) served as the arsenic-specific detector. 9 The chromatograms were exported and the peak areas were determined with external calibration curves using software written inhouse.…”

Section: Apparatusmentioning

confidence: 99%

“…In a recent study of a number of arsenicaccumulating mushrooms several arsenic compounds were identified, among which arsenobetaine appears to be the major species. 8,9 The type of arsenic metabolite seems to be fungus-dependent. Therefore, we examined a wider range of mushrooms to define the pattern in the Fungal Kingdom, and to investigate possible links between taxonomic position and the ability to accumulate arsenic compounds.…”

Section: Introductionmentioning

confidence: 99%

“…7,8 Arsenobetaine and arsenocholine have been identified in the terrestrial environment thus far only in mushrooms. 8,9 The arsenic compounds present in foodstuffs including edible mushrooms are obviously of concern to the consumer and the authorities, but not all arsenic compounds have the same toxicity. Inorganic compounds of arsenic are more toxic than organic derivatives.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Arsenic Compounds in Higher Fungi

Šlejkovec

Byrne

Stijve

et al. 1997

Appl. Organometal. Chem.

Self Cite

View full text Add to dashboard Cite

In 50 mushroom species (56 samples) from Slovenia, Switzerland, Brazil, Sweden, The Netherlands and USA, total arsenic was determined by radiochemical neutron activation analysis (RNAA). Arsenic concentrations ranged from 0.1 to 30 μg g−1 (dry mass). Arsenic compounds were determined in methanol extracts from the mushrooms by HPLC–ICP–MS. The aim of the study was not only to quantify arsenic compounds in mushrooms but also to uncover trends relating the methylating ability of a mushroom to its taxonomic or evolutionary status. The main arsenic compound found in many mushrooms (various puffballs, Agaricales and Aphyllophorales) was arsenobetaine. Arsenate [As(V)] was the main arsenic species in Laccaria fraterna and Entoloma rhodopolium and arsenite [As(III)] in Tricholoma sulphureum. A mixture of arsenite and arsenate was present in Amanita caesarea. Dimethylarsinic acid (DMA) and methylarsonic acid were present in many mushrooms, but generally as minor components. In Laccaria laccata, Leucocoprinus badhamii and Volvariella volvacea, DMA was the major metabolite. Arsenocholine (AC) and the tetramethylarsonium ion were present in a few species, generally at low concentrations, except for Sparassis crispa, in which AC was the main compound. Tri‐ methylarsine oxide was not found in any of the mushrooms. In some species small amounts of unknown compounds were also present. The possible taxonomic significance of the metabolite patterns and the predominance of arsenobetaine in more advanced fungal types are discussed. © 1997 John Wiley & Sons, Ltd.

show abstract

Section: Taxonomy and Arsenic Compoundssupporting

confidence: 65%

Section: Apparatusmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Arsenic Compounds in Higher Fungi

Šlejkovec

Byrne

Stijve

et al. 1997

Appl. Organometal. Chem.

Self Cite

View full text Add to dashboard Cite

show abstract

“…According to Kempic (1997), (1) almost no data were available on speciation of arsenic in water supplies when the U.S. Environmental Protection Agency (USEPA) estimated national compliance costs for arsenic maximum contaminant level options for drinking water in 1995, (2) limited data indicated that groundwaters contained both AsV and AsIII, and (3) it is likely that in most surface waters arsenic would be present only as AsV. The proportions of AsV and AsIII in water are influenced by pH, exposure to air, and time of exposure to air (Kuehnelt et al 1997), and therefore can change during water transport, storage, and processing. No distinction between the forms is made in establishing water quality standards.…”

Section: Introductionmentioning

confidence: 99%

Estimation of Multimedia Inorganic Arsenic Intake in the U.S. Population

Meacher¹,

Menzel²,

Dillencourt³

et al. 2002

Human and Ecological Risk Assessment: An International Journal

View full text Add to dashboard Cite

Arsenic is widely distributed in the environment by natural and human means. The potential for adverse health effects from inorganic arsenic depends on the level and route of exposure. To estimate potential health risks of inorganic arsenic, the apportionment of exposure among sources of inorganic arsenic is critical. In this study, daily inorganic arsenic intake of U.S. adults from food, water, and soil ingestion and from airborne particle inhalation was estimated. To account for variations in exposure across the U.S., a Monte Carlo approach was taken using simulations for 100,000 individuals representing the age, gender, and county of residence of the U.S. population based on census data. Our analysis found that food is the greatest source of inorganic arsenic intake and that drinking water is the next highest contributor. Inhalation of airborne arsenic-containing particles and ingestion of arsenic-containing soils were negligible contributors. The exposure is best represented by the ranges of inorganic arsenic intake (at the 10 th and 90 th percentiles), which were 1.8 to 11.4 µg/day for males and 1.3 to 9.4 µg/day for females. Regional differences in inorganic arsenic exposure were due mostly to consumption of drinking water containing differing inorganic arsenic content rather than to food preferences.

show abstract

Arsenic compounds in terrestrial organisms. IV. Green plants and lichens from an old arsenic smelter site in Austria

Kuehnelt

Lintschinger

Goessler

2000

Appl. Organometal. Chem.

100

View full text Add to dashboard Cite

Two lichens and 12 green plants growing at a former arsenic roasting facility in Austria were analyzed for total arsenic by ICP-MS, and for 12 arsenic compounds (arsenous acid, arsenic acid, dimethylarsinic acid, methylarsonic acid, arsenobetaine, arsenocholine, trimethylarsine oxide, the tetramethylarsonium cation and four arsenoriboses) by HPLC-ICP-MS. Total arsenic concentrations were in the range of 0.27 mg As (kg dry mass) À1 (Vaccinium vitis idaea) to 8.45 mg As (kg dry mass) À1 (Equisetum pratense). Arsenic compounds were extracted with two different extractants [water or methanol/water (9:1)]. Extraction yields achieved with water [7% (Alectoria ochroleuca) to 71% (Equisetum pratense)] were higher than those with methanol/water (9:1) [4% (Alectoria ochroleuca) to 22% (Deschampsia cespitosa)]. The differences were caused mainly by better extraction of inorganic arsenic (green plants) and an arsenoribose (lichens) by water. Inorganic arsenic was detected in all extracts. Dimethylarsinic acid was identified in nine green plants. One of the lichens (Alectoria ochroleuca) contained traces of methylarsonic acid, and this compound was also detected in nine of the green plants. Arsenobetaine was a major arsenic compound in extracts of the lichens, but except for traces in the grass Deschampsia cespitosa, it was not detected in the green plants. In contrast to arsenobetaine, trimethylarsine oxide was found in all samples. The tetramethylarsonium cation was identified in the lichen Alectoria ochroleuca and in four green plants. With the exception of the needles of the tree Larix decidua the arsenoribose (2'R)-dimethyl[1-O-(2',3'-dihydroxypropyl)-5-deoxy-b-D-ribofuranos-5-yl]-arsine oxide was identified at the low mg kg À1 level or as a trace in all plants investigated. In the lichens an unknown arsenic compound, which did not match any of the standard compounds available, was also detected. Arsenocholine and three of the arsenoriboses were not detected in the samples.

show abstract

The oxidation of arsenite in aqueous solutions

Cited by 16 publications

References 9 publications

Arsenic Compounds in Higher Fungi

Arsenic Compounds in Higher Fungi

Estimation of Multimedia Inorganic Arsenic Intake in the U.S. Population

Arsenic compounds in terrestrial organisms. IV. Green plants and lichens from an old arsenic smelter site in Austria

Contact Info

Product

Resources

About