Gold volatile species atomization and preconcentration in quartz devices for atomic absorption spectrometry

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081715%3A_____%2F15%3A00440563" target="_blank" >RIV/68081715:_____/15:00440563 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.sab.2014.12.007" target="_blank" >http://dx.doi.org/10.1016/j.sab.2014.12.007</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.sab.2014.12.007" target="_blank" >10.1016/j.sab.2014.12.007</a>

Result language
angličtina
Original language name
Gold volatile species atomization and preconcentration in quartz devices for atomic absorption spectrometry
Original language description
The on-line atomization of gold volatile specieswas studied and the resultswere comparedwith thermodynamic calculations in several quartz atomizers, namely: diffusion flame, flame-in-gas-shield, flame-in-plain-tube, externally heated T-tube and externally heated flame-in-T-tube. Atomization mechanism in the explored devices is proposed, where volatile species are converted to thermodynamically stable AuH at elevated temperature over 500 °C and then atomized by an interaction with a cloud of hydrogen radicals. Because of its inherent simplicity and robustness, diffusion flame was employed as a reference atomizer. It yielded atomization efficiency of 70 to 100% and a very good long time reproducibility of peak area sensitivity: 1.6 to 1.8 s ?g1. Six andeleven times higher sensitivity, respectively, was provided by atomizers with longer light paths in the observation volume, i.e. externally heated T-tube and externally heated flame-in-T-tube. The latter one, offering limit of detection b
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CB - Analytical chemistry, separation
OECD FORD branch
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Project
<a href="/en/project/GA14-23532S" target="_blank" >GA14-23532S: Generation and preconcentration of volatile compounds for atomic absorption and atomic fluorescence spectrometry</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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