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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
UV-photochemical vapor generation with quartz furnace atomic absorption spectrometry for simple and sensitive determination of selenium in dietary supplements
Original language description
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
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
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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