Slow dissociations of thiophenol molecular ion. Study by TRPD and TPIMS (time-resolved, photodissociation and time-resolved photoionization mass spectrometry)

1990 ◽  
Vol 112 (22) ◽  
pp. 7893-7899 ◽  
Author(s):  
James D. Faulk ◽  
Robert C. Dunbar ◽  
Chava Lifshitz
Keyword(s):  
Mass Spectrometry ◽  
Time Resolved ◽  
Molecular Ion ◽  
Photoionization Mass Spectrometry

scholarly journals Measurements of Rate Constants for HO2 + NO and NH2 + NO Reactions by Time-Resolved Photoionization Mass Spectrometry

1995 ◽  
Vol 16 (1) ◽  
pp. 43-51 ◽  
Author(s):  
Takashi Imamura ◽  
Nobuaki Washida
Keyword(s):  
Mass Spectrometry ◽  
Rate Constants ◽  
Flash Photolysis ◽  
Laser Flash Photolysis ◽  
Laser Flash ◽  
Absolute Rate ◽  
Time Resolved ◽  
Photoionization Mass Spectrometry

Absolute rate constants for HO2 + NO and NH2 + NO reactions were measured by a photoionization mass spectrometry coupled with a laser flash photolysis. HO2 and NH2 radicals were photoionized by an Ar resonance lamp and were detected as their parent ions (HO2+ and NH2+). The rate constants were determined to be K(HO2 + NO)=(6.5  ± 2.0) 10−12cm3molecule−1s−1K(NH2 + NO)=(1.9  ± 0.3) 10−11cm3molecule−1s−1 Both rates are consistent with those previously reported.

scholarly journals Direct time-resolved detection and quantification of key reactive intermediates in diethyl ether oxidation at T = 450–600 K

2020 ◽  
Vol 22 (42) ◽  
pp. 24649-24661
Author(s):  
Maria Demireva ◽  
Kendrew Au ◽  
Leonid Sheps
Keyword(s):  
Mass Spectrometry ◽  
High Pressure ◽  
Diethyl Ether ◽  
Vacuum Ultraviolet ◽  
Reactive Intermediates ◽  
Reaction Intermediates ◽  
Time Resolved ◽  
Photoionization Mass Spectrometry ◽  
Ionization Radiation ◽  
Detection And Quantification

High-pressure multiplexed photoionization mass spectrometry (MPIMS) with tunable vacuum ultraviolet (VUV) ionization radiation from the Lawrence Berkeley Labs Advanced Light Source is used to characterize and quantify key reaction intermediates in the oxidation of diethyl ether (DEE).

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