Vliv přípravy extraktu na zastoupení sloučenin arsenu ve vzorcích červené řepy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F07%3A20642" target="_blank" >RIV/60460709:41210/07:20642 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The Effect of Extract Preparation on Proportion of Arsenic Species in Beetroot Samples

Popis výsledku v původním jazyce

In our experiments, the influence of the extractants for releasing the arsenic compounds from beetroot (Beta vulgaris, L.) growing in arsenic contaminated soil was investigated. Arsenic portions extractable by water and phosphate buffer did not show significant differences between the extraction agents but the extractability was affected by the arsenic concentration in beetroot. Arsenic was almost quantitatively extractable from the samples with the lowest total arsenic concentration, whereas in the samples with the highest total arsenic concentration less than 25% were extractable. Arsenate was the dominant arsenic compound in the extracts. Different pattern was observed in the case of fresh beetroot juice where arsenate varied between 80 ? 100 % regardless of arsenic level. However, loss of arsenic was observed due to filtration of the juice before determination of arsenic compounds. Both effects suggested possible complexes of arsenic with various pigments. The role of plant pigment

Název v anglickém jazyce

The Effect of Extract Preparation on Proportion of Arsenic Species in Beetroot Samples

Popis výsledku anglicky

In our experiments, the influence of the extractants for releasing the arsenic compounds from beetroot (Beta vulgaris, L.) growing in arsenic contaminated soil was investigated. Arsenic portions extractable by water and phosphate buffer did not show significant differences between the extraction agents but the extractability was affected by the arsenic concentration in beetroot. Arsenic was almost quantitatively extractable from the samples with the lowest total arsenic concentration, whereas in the samples with the highest total arsenic concentration less than 25% were extractable. Arsenate was the dominant arsenic compound in the extracts. Different pattern was observed in the case of fresh beetroot juice where arsenate varied between 80 ? 100 % regardless of arsenic level. However, loss of arsenic was observed due to filtration of the juice before determination of arsenic compounds. Both effects suggested possible complexes of arsenic with various pigments. The role of plant pigment

Druh

D - Stať ve sborníku

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

<a href="/cs/project/GA205%2F06%2F0298" target="_blank" >GA205/06/0298: Geochemické, pedologické a biologické aspekty přístupnosti arsenu a jeho sloučenin pro rostliny</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Trends in Sample Preparation 2007

ISBN

978-3-902465-72-6

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

67-67

Název nakladatele

Graz University of technology

Místo vydání

Seggau, Austria

Místo konání akce

Seggau, Austria

Datum konání akce

26. 6. 2007

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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