Direct analysis of methcathinone from crude reaction mixture by flowing atmospheric-pressure afterglow mass spectrometry

2012 ◽  
Vol 26 (13) ◽  
pp. 1577-1580 ◽  
Author(s):  
Marek Smoluch ◽  
Edward Reszke ◽  
Andrzej Ramsza ◽  
Krzysztof Labuz ◽  
Jerzy Silberring
Keyword(s):  
Mass Spectrometry ◽  
Atmospheric Pressure ◽  
Direct Analysis ◽  
Flowing Atmospheric Pressure Afterglow ◽  
Crude Reaction Mixture

scholarly journals Halo-Shaped Flowing Atmospheric Pressure Afterglow: A Heavenly Design for Simplified Sample Introduction and Improved Ionization in Ambient Mass Spectrometry

2013 ◽  
Vol 85 (15) ◽  
pp. 7512-7518 ◽  
Author(s):  
Kevin P. Pfeuffer ◽  
J. Niklas Schaper ◽  
Jacob T. Shelley ◽  
Steven J. Ray ◽  
George C.-Y. Chan ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Atmospheric Pressure ◽  
Ambient Mass Spectrometry ◽  
Sample Introduction ◽  
Flowing Atmospheric Pressure Afterglow

scholarly journals FAPA mass spectrometry of hydroxychalcones. Comparative studies with classical methods of ionization

2014 ◽  
Vol 27 (1) ◽  
pp. 27-31 ◽  
Author(s):  
Marek Smoluch ◽  
Grazyna Bartkowiak ◽  
Edward Reszke ◽  
Wojciech Lechowicz ◽  
Jerzy Silberring ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Molecular Weight ◽  
Comparative Studies ◽  
Atmospheric Pressure ◽  
Ion Sources ◽  
Low Molecular Weight ◽  
Fragmentation Pathways ◽  
Low Molecular Weight Compounds ◽  
Flowing Atmospheric Pressure Afterglow ◽  
Comparison Of The Results

Abstract In this paper we are focused on analysis of hydroxychalcones, i.e. 2’-hydroxychalcone, 3’-hydroxychalcone and 4’-hydroxychalcone, by the Flowing Atmospheric Pressure Afterglow mass spectrometry (FAPA-MS), and on comparison of the obtained data with other classical methods including ESI-MS, APCI, MALDI, and GC/EI-MS. The paper is presenting fragmentation pathways of both positive-, and negative hydroxychalcone ions. Tested compounds were characterized by comparison of the results (signals m/z and relative intensities) from the five mass spectrometry techniques, showing very good utility of FAPA method for fast and easy analysis of the low molecular weight compounds. Moreover, FAPA does not require a time-consuming derivatization, nor search for a suitable solvent or matrix, often incompatible with various ion sources.

Helium conservation by discontinuous introduction in the flowing atmospheric-pressure afterglow source for ambient desorption-ionization mass spectrometry

2015 ◽  
Vol 30 (9) ◽  
pp. 2017-2023 ◽  
Author(s):  
Andrew P. Storey ◽  
Offer M. Zeiri ◽  
Steven J. Ray ◽  
Gary M. Hieftje
Keyword(s):  
Mass Spectrometry ◽  
Atmospheric Pressure ◽  
Performance Characteristics ◽  
Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Similar Performance ◽  
Desorption Ionization ◽  
Flowing Atmospheric Pressure Afterglow

Helium consumption by the FAPA source can be limited by interruption flow between analyses with similar performance characteristics.

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