Direct Electrothermal Atomic Spectrometric Determination of Ag in Aqua Regia Extracts of Soils, Sediments, and Sewage Sludge with Matrix Modification

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F13%3A39894795" target="_blank" >RIV/00216275:25310/13:39894795 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s10661-012-2793-8" target="_blank" >http://dx.doi.org/10.1007/s10661-012-2793-8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10661-012-2793-8" target="_blank" >10.1007/s10661-012-2793-8</a>

Result language
angličtina
Original language name
Direct Electrothermal Atomic Spectrometric Determination of Ag in Aqua Regia Extracts of Soils, Sediments, and Sewage Sludge with Matrix Modification
Original language description
Silver is subject to significant interferences caused by high chloride concentrations in electrothermal atomic absorption spectrometry, thus its direct determination in aqua regia leaches from soils, sediments, and sludges is very difficult, especially when using instrumentation equipped with deuterium-lamp background correction (D2). In this study, the interference of the aqua regia medium was successfully eliminated using Pd?citric acid chemical modifier. This chemical modifier was found to be the most advantageous in comparison with Pd mixture with ascorbic acid, tartaric acid, or citric acid?Li based on its ability to suppress the interference originating from different chloride matrix. Palladium increases the analyte stability; citric acid servesas a reducing reagent, and furthermore, it helps to remove the interfering chlorides by forming HCl, in the drying step of the electrothermal program. In the presence of the modifier, the pyrolysis temperature can be adjusted up to 1,000
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
CB - Analytical chemistry, separation
OECD FORD branch
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Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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