UV-photochemical vapor generation with quartz furnace atomic absorption spectrometry for simple and sensitive determination of selenium in dietary supplements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10318273" target="_blank" >RIV/00216208:11310/16:10318273 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.microc.2015.10.004" target="_blank" >http://dx.doi.org/10.1016/j.microc.2015.10.004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.microc.2015.10.004" target="_blank" >10.1016/j.microc.2015.10.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

UV-photochemical vapor generation with quartz furnace atomic absorption spectrometry for simple and sensitive determination of selenium in dietary supplements

Popis výsledku v původním jazyce

This study describes the optimization and quantification of UV-photochemical vapor generation using the Se(IV) standard, together with application of the proposed technique for practical purposes. The generation process was performed in continuous mode and was combined with atomic absorption spectrometry utilizing an externally heated quartz furnace as an atomizer. Formic acid with a concentration of 0.5 mol L-1 acted as the photochemical agent during the UV-assisted conversion of Se(IV) from the condensed to the gaseous phase; no further chemicals were needed. A very low limit of detection (LOD) 40 ng L-1 was achieved under the optimum experimental conditions and the repeatability expressed as % RSD was 1.8% at 5 mu g L-1 Se(IV). Analysis of the certified reference NIST SRM 1643e was performed to demonstrate the accuracy of the method with good correlation between the certified and experimentally achieved value. The effect of various coexisting ions on the selenium signal was also inv

Název v anglickém jazyce

UV-photochemical vapor generation with quartz furnace atomic absorption spectrometry for simple and sensitive determination of selenium in dietary supplements

Popis výsledku anglicky

This study describes the optimization and quantification of UV-photochemical vapor generation using the Se(IV) standard, together with application of the proposed technique for practical purposes. The generation process was performed in continuous mode and was combined with atomic absorption spectrometry utilizing an externally heated quartz furnace as an atomizer. Formic acid with a concentration of 0.5 mol L-1 acted as the photochemical agent during the UV-assisted conversion of Se(IV) from the condensed to the gaseous phase; no further chemicals were needed. A very low limit of detection (LOD) 40 ng L-1 was achieved under the optimum experimental conditions and the repeatability expressed as % RSD was 1.8% at 5 mu g L-1 Se(IV). Analysis of the certified reference NIST SRM 1643e was performed to demonstrate the accuracy of the method with good correlation between the certified and experimentally achieved value. The effect of various coexisting ions on the selenium signal was also inv

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

2016

Kód důvěrnosti údajů

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

Název periodika

Microchemical Journal

ISSN

0026-265X

e-ISSN

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Svazek periodika

124

Číslo periodika v rámci svazku

January

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

584-593

Kód UT WoS článku

000367755600070

EID výsledku v databázi Scopus

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