Photoionization mass spectrometer for studies of flame chemistry with a synchrotron light source - Archive ouverte HAL
Article Dans Une Revue Review of Scientific Instruments Année : 2005

Photoionization mass spectrometer for studies of flame chemistry with a synchrotron light source

Résumé

A flame-sampling molecular-beam photoionization mass spectrometer, recently designed and constructed for use with a synchrotron-radiation light source, provides significant improvements over previous molecular-beam mass spectrometers that have employed either electron-impact ionization or vacuum ultraviolet laser photoionization. These include superior signal-to-noise ratio, soft ionization, and photon energies easily and precisely tunable [E/E(FWHM)250–400] over the 7.8–17-eV range required for quantitative measurements of the concentrations and isomeric compositions of flame species. Mass resolution of the time-of-flight mass spectrometer is m/m=400 and sensitivity reaches ppm levels. The design of the instrument and its advantages for studies of flame chemistry are discussed.
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Dates et versions

hal-00084355 , version 1 (06-07-2006)

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T.A. Cool, A. Mcilroy, F. Qi, P. R. Westmoreland, L. Poisson, et al.. Photoionization mass spectrometer for studies of flame chemistry with a synchrotron light source. Review of Scientific Instruments, 2005, 76, pp.094102 - 1-7. ⟨10.1063/1.2010307⟩. ⟨hal-00084355⟩
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