Selected Ion Flow Tube Mass Spectrometry as a Tool to Understand Hydride Atomization and the Fate of Free Analyte Atoms in an Externally Heated Quartz Tube Atomizer
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F22%3A00562522" target="_blank" >RIV/61388955:_____/22:00562522 - isvavai.cz</a>
Alternative codes found
RIV/68081715:_____/22:00562522 RIV/00216208:11320/22:10456755
Result on the web
<a href="https://hdl.handle.net/11104/0334843" target="_blank" >https://hdl.handle.net/11104/0334843</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.analchem.2c02682" target="_blank" >10.1021/acs.analchem.2c02682</a>
Alternative languages
Result language
angličtina
Original language name
Selected Ion Flow Tube Mass Spectrometry as a Tool to Understand Hydride Atomization and the Fate of Free Analyte Atoms in an Externally Heated Quartz Tube Atomizer
Original language description
Hydride atomization and the fate of free analyte atoms in an externally heated quartz tube atomizer (QTA) were investigated employing selected ion flow tube mass spectrometry (SIFT-MS). SIFT-MS proved to be ideally suited to study water concentration in gases leaving the atomizer. This made it possible to quantify the oxygen ´´contaminant´´ flow rate to QTA as 0.04-0.05 mL min(-1). This is valid for typical conditions of hydride generation. Most significantly, studies of temperature influence on water concentration resulted in detailed insight into hydrogen radical-forming reactions between oxygen and hydrogen. Minimum QTA temperatures required to generate hydrogen radicals under a variety of different flow rates and compositions of the QTA atmosphere were found to be in the range between 585 and 800 degrees C. The ability of SIFT-MS to detect extremely low concentrations of arsane and selane was employed to quantify the fraction of As and Se removed from the QTA in the form of hydride in dependence on QTA temperature under typical conditions of hydride generation. It was found that free As atoms formed by atomization of arsane decay to different species than to arsane. In the case of selane under typical atomization conditions, the efficiency of the decay of free Se atoms to selane was between 50 and 100% in dependence on actual flow rates and compositions of the QTA atmosphere.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/GA21-25486S" target="_blank" >GA21-25486S: Selected ion flow drift tube mass spectrometry with negative ions and nitrogen carrier gas</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Analytical Chemistry
ISSN
0003-2700
e-ISSN
1520-6882
Volume of the periodical
94
Issue of the periodical within the volume
38
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
13163-13170
UT code for WoS article
000862021000001
EID of the result in the Scopus database
2-s2.0-85138835010