Isotope evidence of hexavalent chromium stability in ground water samples

Result code in 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>
Alternative codes found
RIV/00025798:_____/15:00000170
Result on the web
<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>

Result language
angličtina
Original language name
Isotope evidence of hexavalent chromium stability in ground water samples
Original language description
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
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DK - Contamination and decontamination of soil including pesticides
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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