Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 129247 |
| Fachzeitschrift | TALANTA |
| Jahrgang | 300 |
| Frühes Online-Datum | 11 Dez. 2025 |
| Publikationsstatus | Veröffentlicht - 1 Apr. 2026 |
Abstract
This study presents a detailed investigation of a recently developed dielectric barrier discharge plasma ionization source based on printed circuit boards. Specifically, the reactant and product ions formed in positive and negative polarity, and the difference, when the analyte is guided through or bypasses the plasma of the developed plasma ionization source, were investigated. Therefore, the ionization source is coupled to a self-built ion mobility spectrometer coupled to a mass spectrometer to obtain detailed ion mobility and m / z information. As test compounds, 2-propanol, 2-butanol, 2-pentanol, 2-propanone, sevoflurane, desflurane, and dibutyl maleate were used. We identified the dominant reactant ion species as protonated water clusters (H+(H2O)n) in positive mode and nitrate clustered with nitric acid NO3−(HNO3)2 in negative mode, yielding well-defined ion chemistry conditions. When the analytes are directed through the plasma, there is no fragmentation due to soft ionization, but a significant change in plasma chemistry, e.g. the alcohols tested show a significant conversion to the corresponding ketones (by oxidative dehydrogenation), which was the dominant pathway when they were passed directly through the plasma.
ASJC Scopus Sachgebiete
- Chemie (insg.)
- Analytische Chemie
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in: TALANTA, Jahrgang 300, 129247, 01.04.2026.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Investigation of ion formation generated by an easy-to-assemble dielectric barrier discharge plasma ionization source based on printed circuit boards
AU - Hitzemann, Moritz
AU - Röckrath, Daniel
AU - Haack, Alexander
AU - Thoben, Christian
AU - Nitschke, Alexander
AU - Schaefer, Christoph
AU - Zimmermann, Stefan
N1 - Publisher Copyright: © 2025 The Authors.
PY - 2026/4/1
Y1 - 2026/4/1
N2 - This study presents a detailed investigation of a recently developed dielectric barrier discharge plasma ionization source based on printed circuit boards. Specifically, the reactant and product ions formed in positive and negative polarity, and the difference, when the analyte is guided through or bypasses the plasma of the developed plasma ionization source, were investigated. Therefore, the ionization source is coupled to a self-built ion mobility spectrometer coupled to a mass spectrometer to obtain detailed ion mobility and m / z information. As test compounds, 2-propanol, 2-butanol, 2-pentanol, 2-propanone, sevoflurane, desflurane, and dibutyl maleate were used. We identified the dominant reactant ion species as protonated water clusters (H+(H2O)n) in positive mode and nitrate clustered with nitric acid NO3−(HNO3)2 in negative mode, yielding well-defined ion chemistry conditions. When the analytes are directed through the plasma, there is no fragmentation due to soft ionization, but a significant change in plasma chemistry, e.g. the alcohols tested show a significant conversion to the corresponding ketones (by oxidative dehydrogenation), which was the dominant pathway when they were passed directly through the plasma.
AB - This study presents a detailed investigation of a recently developed dielectric barrier discharge plasma ionization source based on printed circuit boards. Specifically, the reactant and product ions formed in positive and negative polarity, and the difference, when the analyte is guided through or bypasses the plasma of the developed plasma ionization source, were investigated. Therefore, the ionization source is coupled to a self-built ion mobility spectrometer coupled to a mass spectrometer to obtain detailed ion mobility and m / z information. As test compounds, 2-propanol, 2-butanol, 2-pentanol, 2-propanone, sevoflurane, desflurane, and dibutyl maleate were used. We identified the dominant reactant ion species as protonated water clusters (H+(H2O)n) in positive mode and nitrate clustered with nitric acid NO3−(HNO3)2 in negative mode, yielding well-defined ion chemistry conditions. When the analytes are directed through the plasma, there is no fragmentation due to soft ionization, but a significant change in plasma chemistry, e.g. the alcohols tested show a significant conversion to the corresponding ketones (by oxidative dehydrogenation), which was the dominant pathway when they were passed directly through the plasma.
KW - DBD
KW - Dielectric-barrier discharge
KW - IMS
KW - Ion mobility spectrometry
KW - MS
KW - Plasma ionization source
UR - http://www.scopus.com/inward/record.url?scp=105024449282&partnerID=8YFLogxK
U2 - 10.1016/j.talanta.2025.129247
DO - 10.1016/j.talanta.2025.129247
M3 - Article
AN - SCOPUS:105024449282
VL - 300
JO - TALANTA
JF - TALANTA
SN - 0039-9140
M1 - 129247
ER -