Mobility of arsenic and its compounds in soil and soil solution: The effect of soil pretreatment and extraction methods

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F09%3A29569" target="_blank" >RIV/60460709:41210/09:29569 - 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

Mobility of arsenic and its compounds in soil and soil solution: The effect of soil pretreatment and extraction methods

Popis výsledku v původním jazyce

The effect of soil extraction procedures and/or sample pretreatment (drying, freezing of the soil sample) on the extractability of arsenic and its compounds was tested. In the first part, 5 extraction procedures were compared with following order of extractable arsenic portions: 2 M HNO3 >> 0.43 M CH3COOH &#8805; 0.05 M EDTA &#8805; Mehlich III (0.2 M CH3COOH + 0.25 M NH4NO3 + 0.013 M HNO3 + 0.015 M NH4F + 0.001 M EDTA) extraction >> water). Additionally, two methods of soil solution sampling were compared, centrifugation of saturated soil and the use of suction cups. The results showed that different sample pretreatments including soil solution sampling can lead to different absolute values of mobile arsenic content in soils. However, the interpretation of the data can lead to similar conclusions as apparent from the comparison of the soil solution sampling methods (r=0.79). For determination of arsenic compounds mild extraction procedures (0.05 M (NH4)2SO4, 0.01 M CaCl2, and water) a

Název v anglickém jazyce

Mobility of arsenic and its compounds in soil and soil solution: The effect of soil pretreatment and extraction methods

Popis výsledku anglicky

The effect of soil extraction procedures and/or sample pretreatment (drying, freezing of the soil sample) on the extractability of arsenic and its compounds was tested. In the first part, 5 extraction procedures were compared with following order of extractable arsenic portions: 2 M HNO3 >> 0.43 M CH3COOH &#8805; 0.05 M EDTA &#8805; Mehlich III (0.2 M CH3COOH + 0.25 M NH4NO3 + 0.013 M HNO3 + 0.015 M NH4F + 0.001 M EDTA) extraction >> water). Additionally, two methods of soil solution sampling were compared, centrifugation of saturated soil and the use of suction cups. The results showed that different sample pretreatments including soil solution sampling can lead to different absolute values of mobile arsenic content in soils. However, the interpretation of the data can lead to similar conclusions as apparent from the comparison of the soil solution sampling methods (r=0.79). For determination of arsenic compounds mild extraction procedures (0.05 M (NH4)2SO4, 0.01 M CaCl2, and water) a

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DK - Kontaminace a dekontaminace půdy včetně pesticidů

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

2009

Kód důvěrnosti údajů

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

Název periodika

Journal of Hazardous Materials

ISSN

0304-3894

e-ISSN

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Svazek periodika

172

Číslo periodika v rámci svazku

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Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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