Recent advances in hydride generation for atomic absorption spectrometry: Atomizer optimization by two-photon absorption laser-induced fluorescence

0464284 - ÚIACH 2017 SK eng A - Abstrakt
Dědina, Jiří - Kratzer, Jan - Talába, M. - Obrusník, A. - Dvořák, P.
Recent advances in hydride generation for atomic absorption spectrometry: Atomizer optimization by two-photon absorption laser-induced fluorescence.
XXIst Slovak-Czech Spectroscopic Conference. Book of abstracts. Košice: Technická univerzita v Košiciach, 2016 - (Remeteiová, D.; Ružičková, S.). s. 25-25. ISBN 978-80-553-2636-8.
[Slovak-Czech Spectroscopic Conference /21./. 16.10.2016-20.10.2016, Liptovský Ján,]
Grant CEP: GA ČR GA14-23532S
Grant ostatní: GA MŠk LO1411
Institucionální podpora: RVO:68081715
Klíčová slova: hydride atomization * two-photon absorption laser-induced fluorescence * hydrogen radicals
Kód oboru RIV: CB - Analytická chemie, separace

A new approach to hydrogen radical detection, based on a direct observation of free hydrogen radicals by two-photon absorption laser-induced fluorescence, in hydride atomizers will be reported. This approach makes possible to visualize the distribution of hydrogen radicals in atomizers. Consequently it offers a potential to disclose how the distribution of hydrogen radicals depends on atomizer design and on actual experimental parameters. It should be highlighted that two-photon absorption laser-induced fluorescence allows a straightforward optimization of the atomization step of analytical methods for trace element and speciation analysis based on hydride generation and on their atomization in atomic absorption and atomic fluorescence detectors. Outlooks of this exciting approach to atomizer optimization and to further investigation of mechanism of hydride atomization will be outlined.
Trvalý link: http://hdl.handle.net/11104/0263227