Isotope evidence of hexavalent chromium stability in ground water samples

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F15%3A68285" target="_blank" >RIV/60460709:41330/15:68285 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00025798:_____/15:00000170

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.chemosphere.2015.05.057" target="_blank" >http://dx.doi.org/10.1016/j.chemosphere.2015.05.057</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.chemosphere.2015.05.057" target="_blank" >10.1016/j.chemosphere.2015.05.057</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Isotope evidence of hexavalent chromium stability in ground water samples

Popis výsledku v původním jazyce

Chromium stable isotopes are of interest in many geochemical studies as a tool to identify Cr(VI) reduction and/or dilution in groundwater aquifers. For such studies the short term stability of Cr(VI) in water samples is required before the laboratory analyses can be carried out. Here the short term stability of Cr(VI) in groundwater samples was studied using an isotope approach. Based on commonly available methods for Cr(VI) stabilization, water samples were filtered and the pH value was adjusted to beequal to or greater than 8 before Cr isotope analysis. Based on our Cr isotope data (expressed as delta Cr-53(NIST979)), Cr(VI) was found to be unstable over short time periods in anthropogenically contaminated groundwater samples regardless of water treatment (e.g., pH adjustment, different storage temperatures). Based on our laboratory experiments, delta Cr-53(NIST979) of the Cr(VI) pool was found to be unstable in the presence of dissolved Fe(II), Mn(IV) and/or SO2. Threshold concent

Název v anglickém jazyce

Isotope evidence of hexavalent chromium stability in ground water samples

Popis výsledku anglicky

Chromium stable isotopes are of interest in many geochemical studies as a tool to identify Cr(VI) reduction and/or dilution in groundwater aquifers. For such studies the short term stability of Cr(VI) in water samples is required before the laboratory analyses can be carried out. Here the short term stability of Cr(VI) in groundwater samples was studied using an isotope approach. Based on commonly available methods for Cr(VI) stabilization, water samples were filtered and the pH value was adjusted to beequal to or greater than 8 before Cr isotope analysis. Based on our Cr isotope data (expressed as delta Cr-53(NIST979)), Cr(VI) was found to be unstable over short time periods in anthropogenically contaminated groundwater samples regardless of water treatment (e.g., pH adjustment, different storage temperatures). Based on our laboratory experiments, delta Cr-53(NIST979) of the Cr(VI) pool was found to be unstable in the presence of dissolved Fe(II), Mn(IV) and/or SO2. Threshold concent

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Chemosphere

ISSN

0045-6535

e-ISSN

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Svazek periodika

2015

Číslo periodika v rámci svazku

138

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

74-80

Kód UT WoS článku

000361772800010

EID výsledku v databázi Scopus

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