Ultrasensitive determination of cadmium by atomic spectrometry

0561322 - ÚIACH 2023 CZ eng A - Abstract
Sagapova, Linda - Štádlerová, Barbora - Musil, Stanislav - Svoboda, Milan - Kratzer, Jan
Ultrasensitive determination of cadmium by atomic spectrometry.
Book of Abstracts: European Symposium on Atomic Spectrometry - Czech-Slovak Spectroscopic Conference 2022. Brno: Ioannes Marcus Marci Spectroscopic Society, 2022. s. 165-165. ISBN 978-80-88195-41-2.
[European Symposium on Atomic Spectrometry 2022 - Czech-Slovak Spectroscopic Conference /17./. 04.09.2022-09.09.2022, Brno]
R&D Projects: GA ČR(CZ) GJ19-17604Y
Institutional support: RVO:68081715
Keywords : cadmium * chemical vapor generation * atomic spectrometry
OECD category: Analytical chemistry

Chemical vapor generation (CVG) of cadmium was optimized in the presence of Cr3+/KCN modifiers in a four-channel CVG system in a flow-injection mode, reaching generation efficiency of 60%. The optimized CVG was subsequently coupled with atomic fluorescence spectrometry (AFS) with atomization in a miniature diffusion flame (MDF) as well as flame-in-gas-shield (FIGS). The interference from hydride forming elements (Sn, Sb, Se, Bi, As and Pb) and Hg was investigated. Another approach to improve LOD involved a preconcentration. A simple Cd preconcentration step in the gas phase, after CVG, was developed employing a modular trap-and-atomizer device.
Permanent Link: https://hdl.handle.net/11104/0334009