scholarly journals Effusive molecular beam-sampled Knudsen flow reactor coupled to vacuum ultraviolet single photon ionization mass spectrometry using an external free radical source

2013 ◽  
Vol 84 (11) ◽  
pp. 114104 ◽  
Author(s):  
N. Leplat ◽  
M. J. Rossi
Keyword(s):  
Mass Spectrometry ◽  
Free Radical ◽  
Molecular Beam ◽  
Vacuum Ultraviolet ◽  
Flow Reactor ◽  
Single Photon ◽  
Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Knudsen Flow ◽  
Photon Ionization

scholarly journals Studying Interfacial Dark Reactions of Glyoxal and Hydrogen Peroxide Using Vacuum Ultraviolet Single Photon Ionization Mass Spectrometry

Atmosphere ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 338
Author(s):  
Xiao Sui ◽  
Bo Xu ◽  
Jiachao Yu ◽  
Oleg Kostko ◽  
Musahid Ahmed ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Vacuum Ultraviolet ◽  
Fine Particles ◽  
Single Photon ◽  
Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Single Photon Ionization ◽  
Tof Sims ◽  
Photon Ionization

Aqueous secondary organic aerosol (aqSOA) formation from volatile and semivolatile organic compounds at the air–liquid interface is considered as an important source of fine particles in the atmosphere. However, due to the lack of in situ detecting techniques, the detailed interfacial reaction mechanism and dynamics still remain uncertain. In this study, synchrotron-based vacuum ultraviolet single-photon ionization mass spectrometry (VUV SPI-MS) was coupled with the System for Analysis at the Liquid Vacuum Interface (SALVI) to investigate glyoxal dark oxidation products at the aqueous surface. Mass spectral analysis and determination of appearance energies (AEs) suggest that the main products of glyoxal dark interfacial aging are carboxylic acid related oligomers. Furthermore, the VUV SPI-MS results were compared and validated against those of in situ liquid time-of-flight secondary ion mass spectrometry (ToF-SIMS). The reaction mechanisms of the dark glyoxal interfacial oxidation, obtained using two different approaches, indicate that differences in ionization and instrument operation principles could contribute to their abilities to detect different oligomers. Therefore, the mechanistic differences revealed between the VUV SPI-MS and ToF-SIMS indicate that more in situ and real-time techniques are needed to investigate the contribution of the air–liquid interfacial reactions leading to aqSOA formation.

All-solid-state deep ultraviolet laser for single-photon ionization mass spectrometry

2016 ◽  
Vol 87 (2) ◽  
pp. 024102 ◽  
Author(s):  
Chengqian Yuan ◽  
Xianhu Liu ◽  
Chenghui Zeng ◽  
Hanyu Zhang ◽  
Meiye Jia ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Solid State ◽  
Single Photon ◽  
Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Ultraviolet Laser ◽  
Single Photon Ionization ◽  
Deep Ultraviolet ◽  
Photon Ionization

Laser single photon ionization mass spectrometry of linear, branched and cyclic hexanes

1991 ◽  
Vol 107 (3) ◽  
pp. 475-489 ◽  
Author(s):  
R.J.J.M. Steenvoorden ◽  
P.G. Kistemaker ◽  
A.E. De Vries ◽  
L. Michalak ◽  
N.M.M. Nibbering
Keyword(s):  
Mass Spectrometry ◽  
Single Photon ◽  
Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Single Photon Ionization ◽  
Photon Ionization

Evolved gas analysis by single photon ionization-mass spectrometry

2014 ◽  
Vol 116 (3) ◽  
pp. 1461-1469 ◽  
Author(s):  
M. Fischer ◽  
S. Wohlfahrt ◽  
J. Varga ◽  
M. Saraji-Bozorgzad ◽  
G. Matuschek ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Single Photon ◽  
Evolved Gas Analysis ◽  
Gas Analysis ◽  
Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Evolved Gas ◽  
Single Photon Ionization ◽  
Photon Ionization
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