Radical theory of hydride atomization confirmed after four decades - determination of H radicals in the quartz hydride atomizer by two-photon absorption laser-induced fluorescence

Investor logo
Investor logo

Warning

This publication doesn't include Faculty of Education. It includes Faculty of Science. Official publication website can be found on muni.cz.
Authors

DVOŘÁK Pavel TALÁBA Marek KRATZER Jan DĚDINA Jiří

Year of publication 2019
Type Article in Periodical
Magazine / Source Chemical Science
MU Faculty or unit

Faculty of Science

Citation
Web Full Text
Doi http://dx.doi.org/10.1039/C8SC05655B
Keywords atomizator; atomic hydrogen; TALIF; hydrides
Description To reach an excellent performance for elemental and speciation analysis offered by the hydride generation coupled to atomic absorption/fluorescence detectors, an optimization of hydride atomization is required. It can be realized in a straightforward way based on a knowledge how experimental conditions influence the distribution of hydrogen atoms in a given atomizer type. In the quartzQuartz-tube atomizersperformance tube atomizer, most often employed hydride atomizer for atomic absorption spectrometry, two-photon absorption laser-induced fluorescence (TALIF) was employed (i) to bring after four decades for the first time a conclusive proof of the existence of H radical population sufficient to atomize hydrides thus confirming unambiguously the radical theory of hydride atomization and (ii) to determine distribution of H radicals in the atomizer. The superb power of TALIF to determine spatial distribution of H radicals in hydride atomizers opens a way to an elegant optimization of hydride atomization.
Related projects:

You are running an old browser version. We recommend updating your browser to its latest version.