Z. Y. Zhou, Y. Wang, X. F. Tang, W. H. Wu and F. Qi (2013) A new apparatus for study of pressure-dependent laminar premixed flames with vacuum ultraviolet photoionization mass spectrometry. Journal/Review Of Scientific Instruments 84 7. [In English]
Web link: http://dx.doi.org/10.1063/1.4773541
Keywords: SYNCHROTRON VUV PHOTOIONIZATION, ALKYLPEROXY RADICALS, COMBUSTION, STABILITY, CHEMISTRY, OXIDATION, CATIONS
Abstract: We report a home-made combustion apparatus for study of pressure-dependent laminar premixed flames with tunable vacuum ultraviolet photoionization mass spectrometry. The instrument consists of a flame chamber, a photoionization chamber with a single-stage sampling system, an ion transfer/storage system, and an orthogonal-acceleration reflectron time-of-flight mass spectrometer. Preliminary results of fuel-rich C2H4/O-2/Ar flames at pressures of 30, 150, and 760 Torr have been obtained with this instrument. Compared to previous instruments [T. A. Cool, A. McIlroy, F. Qi, P. R. Westmoreland, L. Poisson, D. S. Peterka, and M. Ahmed, Rev. Sci. Instrum. 76, 094102 (2005), F. Qi, R. Yang, B. Yang, C. Q. Huang, L. X. Wei, J. Wang, L. S. Sheng, and Y. W. Zhang, Rev. Sci. Instrum. 77, 084101 (2006)], performances of the new apparatus have higher mass resolution (similar to 3500 at m/z = 40), better detection limit (<,1 ppm), and broader dynamic range (better than 5 order of magnitude). (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4773541]