0162206 - UIACH-O 200015 RIV NL eng J - Journal Article
Matoušek, Tomáš - Dědina, Jiří - Johansson, M. - Frech, W.
Gas flow patterns and longitudinal distribution of free selenium atoms in quartz tube atomizers for hydride generation atomic absorption spectrometry.
Spectrochimica Acta Part B: Atomic Spectroscopy. Roč. 55, - (2000), s. 151-163. ISSN 0584-8547. E-ISSN 1873-3565
R&D Projects: GA ČR GA203/95/0496; GA ČR GA203/98/0754
Subject RIV: CB - Analytical Chemistry, Separation
Impact factor: 2.608, year: 2000

Gas flow patterns in the atomizer were studied by light scattering on ammonium chloride particles. The flow pattern is basically laminar. Longitudinal free atom distribution in the atomizer optical tube under various conditions was measured. Free atoms start to decay immediately after entering the optical tube. Enhanced free atom decay at higher analyte concentrations deteriorates the calibration linearity. Free atoms may appear at the borders of the hot part, contributing to the sensitivity.
Permanent Link: http://hdl.handle.net/11104/0059525