Thermogravimetric analyzer/atmospheric pressure chemical ionization tandem triple quadrupole mass spectrometer system for evolved gas analysis

1989 ◽  
Vol 61 (11) ◽  
pp. 1195-1201 ◽  
Author(s):  
R. Bruce. Prime ◽  
Bori. Shushan
Keyword(s):  
Atmospheric Pressure Chemical Ionization ◽  
Evolved Gas Analysis ◽  
Gas Analysis ◽  
Triple Quadrupole Mass Spectrometer ◽  
Evolved Gas ◽  
Thermogravimetric Analyzer ◽  
Mass Spectrometer System ◽  
Pressure Chemical Ionization ◽  
Pressure Chemical ◽  
Spectrometer System

scholarly journals A laboratory flow reactor with gas particle separation and on-line MS/MS for product identification in atmospherically important reactions

2009 ◽  
Vol 2 (2) ◽  
pp. 813-823 ◽  
Author(s):  
J. F. Bennett ◽  
F. Collin ◽  
D. R. Hastie
Keyword(s):  
Gas Phase ◽  
Flow Reactor ◽  
Atmospheric Pressure Chemical Ionization ◽  
Particle Phase ◽  
Triple Quadrupole Mass Spectrometer ◽  
Product Identification ◽  
Pressure Chemical Ionization ◽  
Pressure Chemical ◽  
On Line ◽  
Diffusion Membrane

Abstract. A system to study the gas and particle phase products from gas phase hydrocarbon oxidation is described. It consists of a gas phase photochemical flow reactor followed by a diffusion membrane denuder to remove gases from the reacted products, or a filter to remove the particles. Chemical analysis is performed by an atmospheric pressure chemical ionization (APCI) triple quadrupole mass spectrometer. A diffusion membrane denuder is shown to remove trace gases to below detectable limits so the particle phase can be studied. The system was tested by examining the products of the oxidation of m-xylene initiated by HO radicals. Dimethylphenol was observed in both the gas and particle phases although individual isomers could not be identified. Two furanone isomers, 5-methyl-2(3H)furanone and 3-methyl-2(5H)furanone were identified in the particulate phase, but the isobaric product 2,5 furandione was not observed. One isomer of dimethyl-nitrophenol was identified in the particle phase but not in the gas phase.

scholarly journals A laboratory flow reactor with gas particle separation and on-line MS/MS for product identification in atmospherically important reactions

2009 ◽  
Vol 2 (3) ◽  
pp. 1351-1382
Author(s):  
J. F. Bennett ◽  
F. Collin ◽  
D. R. Hastie
Keyword(s):  
Gas Phase ◽  
Flow Reactor ◽  
Atmospheric Pressure Chemical Ionization ◽  
Particle Phase ◽  
Triple Quadrupole Mass Spectrometer ◽  
Product Identification ◽  
Pressure Chemical Ionization ◽  
Pressure Chemical ◽  
On Line ◽  
Diffusion Membrane

Abstract. A system to study the gas and particle phase products from gas phase hydrocarbon oxidation is described. It consists of a gas phase photochemical flow reactor followed by a diffusion membrane denuder to remove gases from the reacted products, or a filter to remove the particles. Chemical analysis is performed by an atmospheric pressure chemical ionization (APCI) triple quadrupole mass spectrometer. A diffusion membrane denuder is shown to remove trace gases to below detectable limits so the particle phase can be studied. The system was tested by examining the products of the oxidation of m-xylene initiated by HO radicals. Dimethylphenol was observed in both the gas and particle phases although individual isomers could not be identified. Two furanone isomers, 5-methyl-2(3H)furanone and 3-methyl-2(5H)furanone were identified in the particulate phase, but the isobaric product 2,5 furandione was not observed. One isomer of dimethyl-nitrophenol was identified in the particle phase but not in the gas phase.

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