scholarly journals Development of an inverse low‐temperature plasma ionization source for liquid chromatography/mass spectrometry

2021 ◽  
Vol 35 (10) ◽  
Author(s):  
Dominik Brecht ◽  
Florian Uteschil ◽  
Oliver J. Schmitz
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Low Temperature ◽  
Low Temperature Plasma ◽  
Liquid Chromatography Mass Spectrometry ◽  
Ionization Source ◽  
Temperature Plasma ◽  
Plasma Ionization ◽  
Chromatography Mass Spectrometry

scholarly journals Surface acoustic wave nebulization improves compound selectivity of low-temperature plasma ionization for mass spectrometry

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Andreas Kiontke ◽  
Mehrzad Roudini ◽  
Susan Billig ◽  
Amarghan Fakhfouri ◽  
Andreas Winkler ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Low Temperature ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Ionization Mechanism ◽  
Low Temperature Plasma ◽  
Ambient Conditions ◽  
Temperature Plasma ◽  
Plasma Ionization ◽  
Surface Acoustic Wave Nebulization

AbstractMass spectrometry coupled to low-temperature plasma ionization (LTPI) allows for immediate and easy analysis of compounds from the surface of a sample at ambient conditions. The efficiency of this process, however, strongly depends on the successful desorption of the analyte from the surface to the gas phase. Whilst conventional sample heating can improve analyte desorption, heating is not desirable with respect to the stability of thermally labile analytes. In this study using aromatic amines as model compounds, we demonstrate that (1) surface acoustic wave nebulization (SAWN) can significantly improve compound desorption for LTPI without heating the sample. Furthermore, (2) SAWN-assisted LTPI shows a response enhancement up to a factor of 8 for polar compounds such as aminophenols and phenylenediamines suggesting a paradigm shift in the ionization mechanism. Additional assets of the new technique demonstrated here are (3) a reduced analyte selectivity (the interquartile range of the response decreased by a factor of 7)—a significant benefit in non-targeted analysis of complex samples—and (4) the possibility for automated online monitoring using an autosampler. Finally, (5) the small size of the microfluidic SAWN-chip enables the implementation of the method into miniaturized, mobile LTPI probes.

scholarly journals Author Correction: Surface acoustic wave nebulization improves compound selectivity of low-temperature plasma ionization for mass spectrometry

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Andreas Kiontke ◽  
Mehrzad Roudini ◽  
Susan Billig ◽  
Armaghan Fakhfouri ◽  
Andreas Winkler ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Low Temperature ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Plasma Ionization ◽  
Surface Acoustic Wave Nebulization

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Low-temperature plasma ionization source for the online detection of indoor volatile organic compounds

Talanta ◽  
2011 ◽  
Vol 85 (5) ◽  
pp. 2458-2462 ◽  
Author(s):  
Xiaoyun Gong ◽  
Xingchuang Xiong ◽  
Yue’e peng ◽  
Chengdui Yang ◽  
Sichun Zhang ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Low Temperature ◽  
Organic Compounds ◽  
Low Temperature Plasma ◽  
Online Detection ◽  
Ionization Source ◽  
Temperature Plasma ◽  
Plasma Ionization ◽  
Volatile Organic
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