Single Photon Ionization Orthogonal Acceleration Time-of-Flight Mass Spectrometry and Resonance Enhanced Multiphoton Ionization Time-of-Flight Mass Spectrometry for Evolved Gas Analysis in Thermogravimetry: Comparative Analysis of Crude Oils
作者： Robert Geissler , Mohammad R. Saraji-Bozorgzad , Thomas Gröger , Alois Fendt , Thorsten Streibel
DOI: 10.1021/AC900216Y
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摘要: Coupling thermal analysis (TA) with a subsequent analytical method in order to investigate evolved gaseous products from the is well established method. A popular practice analyze evolving mass spectrometry using electron impact ionization (EI).(1-4) As kinetic energy of electrons thereby typically far beyond energies assayed samples, effects fragmentation particularly organic compounds, hampering correlation ion signals compounds. This applies for complex mixtures particular. Fragmentation can be reduced so-called soft techniques. In course presented setup, single photon (SPI) beam pumped excimer lamps (EBEL) emitting vacuum ultraviolet (VUV) light (λ = 126 nm) employed. For instrumentation, TA system has been coupled an EBEL-SPI-oaTOFMS (oaTOFMS: orthogonal acceleration time-of-flight mas...
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