On-line resonance-enhanced multiphoton ionization time-of-flight laser mass spectrometry for combined multi-component-pattern analysis and target-compound monitoring: non-chlorinated aromatics and chlorobenzene in flue gases of combustion processes

1999 ◽  
Vol 5 (1) ◽  
pp. 51 ◽  
Author(s):  
Hans Heger ◽  
Ulrich Boesl ◽  
Ralf Zimmermann ◽  
Ralph Dorfner ◽  
Antonius Kettrup
Keyword(s):  
Pattern Analysis ◽  
Multiphoton Ionization ◽  
Flue Gases ◽  
Laser Mass Spectrometry ◽  
Target Compound ◽  
Ionization Time ◽  
Chlorinated Aromatics ◽  
Line Resonance ◽  
On Line ◽  
Combustion Processes

Multiphoton Ionization Mass Spectroscopy of Fullerenes in Methane Diffusion Flames

1994 ◽  
Vol 359 ◽  
Author(s):  
H. Hepp ◽  
K. Siegmann ◽  
K. Sattler
Keyword(s):  
Aromatic Hydrocarbons ◽  
Atmospheric Pressure ◽  
Diffusion Flames ◽  
Multiphoton Ionization ◽  
Ionization Mass ◽  
Ionization Time ◽  
Ionization Mass Spectroscopy ◽  
Polycyclic Aromatic ◽  
On Line ◽  
Methane Diffusion

ABSTRACTMultiphoton ionization time-of-flight mass spectrosocopy is used as an on-line technique to investigate polycyclic aromatic hydrocarbons (PAH) and fullerenes in atmospheric pressure flames. We have recorded height profiles of neutral PAH and fullerenes in methane/argon diffusion flames. Fullerenes ranging from C32 to at least C150 are found in a region where PAH concentration starts to decrease. Uniformity of the profiles indicates that the fullerenes do not grow from smaller to larger ones. The influence of the amount of argon additive is discussed.

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