Dielectric barrier discharge hydride atomizers for trace element and speciation analysis

0579506 - ÚIACH 2024 BR eng A - Abstrakt
Kratzer, Jan - Slota, Alexandra - Plecháč, Matěj - Matoušek, Tomáš - Svoboda, Milan - Dwivedi, V. - Mrkvičková, M. - Dvořák, P. - Dědina, Jiří
Dielectric barrier discharge hydride atomizers for trace element and speciation analysis.
Book of Abstracts and Scientific Program. 16th Rio Symposium on Atomic Spectrometry. 2023. s. 40-40.
[Rio Symposium on Atomic Spectrometry /16./. 28.11.2023-30.11.2023, Bento Gonçalves]
Grant CEP: GA ČR(CZ) GA21-05285S
Institucionální podpora: RVO:68081715
Klíčová slova: dielectric barrier discharge (DBD) * Ge species atomization * As speciation analysis
Obor OECD: Analytical chemistry

Three types of hydride atomizers based on diffusion flame (DF), QTA and DBD were optimized for atomization of three environmentally important volatile Ge species including germanium hydride (GeH4) and its two methyl-substituted analogues – monomethyl germanium hydride (CH3GeH3) and dimethyl germanium hydride ((CH3)2GeH2). Determination of four toxicologically relevant arsenic species including inorganic As (sum of arsenite and arsenate), monomethylarsonic acid, dimethylarsinic acid and trimethylarsine oxide was optimized using HPLC separation with post-column generation of volatile species and their subsequent in-situ preconcentration in DBD atomizer and AAS detection.
Trvalý link: https://hdl.handle.net/11104/0348339