Determination of residence times of ions in a resistive glass selected ion flow-drift tube using the Hadamard transformation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10319616" target="_blank" >RIV/00216208:11320/15:10319616 - isvavai.cz</a>
Alternative codes found
RIV/61388955:_____/15:00446322
Result on the web
<a href="http://dx.doi.org/10.1002/rcm.7254" target="_blank" >http://dx.doi.org/10.1002/rcm.7254</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/rcm.7254" target="_blank" >10.1002/rcm.7254</a>
Alternative languages
Result language
angličtina
Original language name
Determination of residence times of ions in a resistive glass selected ion flow-drift tube using the Hadamard transformation
Original language description
RATIONALE: Selected ion flow tube mass spectrometry, SIFT-MS, used for trace gas analyses has certain fundamental limitations that could be alleviated by adding a facility that allows reaction times and ion interaction energies to be varied. Thus, a selected ion flow-drift tube, SIFDT, has been created to explore the influence of an embedded electric field on these parameters and on reaction processes. METHODS: The new SIFTD instrument was constructed using a miniature resistive glass drift tube. Arrival times of ions, t, analysed by a downstream quadrupole mass spectrometer over the m/z range 10-100 were studied by modulating the injected ion current using a gate lens. Single pulse modulation was compared with pseudorandom time multiplexing exploiting the Hadamard transformation. A simple model involving analysis of ethanol and water vapour mixture in air was used to explore the advantages of the SIFDT concept to SIFT-MS analysis. RESULTS: It is shown that the resistive glass drift tube is suitable for SIFDT experiments. The Hadamard transformation can be used to routinely determine reagent ion residence time in the flow-drift tube and also to observe differences in arrival times for different product ions. Two-dimensional data combining arrival time and mass spectra can be obtained rapidly. The calculated ion drift velocities vary with the reduced field strength, E/N, and the calculated ion mobilities agree with theoretical and previous literature values. CONCLUSIONS: This study has provided evidence that the SIFDT-MS technique can be implemented in a miniature and low-cost instrument and two-or three-dimensional data can be obtained (product ion count rates as functions of m/z, t and E/N) using the Hadamard transformation thus providing exciting possibilities for further analytical additions and extensions of the SIFT-MS technique.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA13-28882S" target="_blank" >GA13-28882S: Excitation, separation and fragmentation of ions by drift fields in SIFT-MS for immediate selective trace gas quantification</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Rapid Communications in Mass Spectrometry
ISSN
0951-4198
e-ISSN
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Volume of the periodical
29
Issue of the periodical within the volume
17
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
1563-1570
UT code for WoS article
000360761300003
EID of the result in the Scopus database
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