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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

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

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Environmental Monitoring and Assessment

ISSN

0167-6369

e-ISSN

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Svazek periodika

185

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

3327-3337

Kód UT WoS článku

000315736500036

EID výsledku v databázi Scopus

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