Spin trapping of hydroxyl radical in the troposphere for determination by electron spin resonance and gas chromatography/mass spectrometry

1982 ◽  
Vol 54 (14) ◽  
pp. 2470-2474 ◽  
Author(s):  
Tokuko. Watanabe ◽  
Masayuki. Yoshida ◽  
Shizuo. Fujiwara ◽  
Kazuhisa. Abe ◽  
Atsushi. Onoe ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Electron Spin Resonance ◽  
Hydroxyl Radical ◽  
Electron Spin ◽  
Spin Trapping ◽  
Gas Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry ◽  
Spin Resonance

scholarly journals Measurement of isoprene nitrates by GCMS

2016 ◽  
Author(s):  
Graham P. Mills ◽  
Glyn D. Hiatt-Gipson ◽  
Sean P. Bew ◽  
Claire E. Reeves
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Hydroxyl Radical ◽  
Chemical Mechanism ◽  
Gas Chromatography Mass Spectrometry ◽  
Nitrate Radical ◽  
Chromatography Mass Spectrometry ◽  
Calibration Methods ◽  
Isoprene Nitrates ◽  
Master Chemical Mechanism

Abstract. An instrument based on gas chromatography/mass spectrometry (GCMS) and the associated calibration methods are described for the speciated measurements of individual isoprene nitrate isomers. Five of the primary isoprene nitrates formed by reaction of isoprene with the hydroxyl radical (OH) in the Master Chemical Mechanism are identified using known isomers on two column phases, and are fully separated on the Rtx-200 column. Three primary isoprene nitrates from the reaction of isoprene with the nitrate radical (NO3) are identified after synthesis from the already identified analogous hydroxy nitrate.

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