Applicability of resonant two-photon ionization in supersonic beam mass spectrometry to halogenated aromatic hydrocarbons

Resonance-enhanced multiphoton ionization (REMPI) spectroscopy of p–chlorofluorobenzene

“…No assignments were presented in Ref. [19], while those given in Ref. [21] are in terms of Wilson notation and are not wholly consistent with those of other related molecules, including pDFB [7], [18] and others given herein, in contrast, the assignments in Refs.…”

“…Finally, we have also re-examined the published S1  S0 spectrum of para-dichlorobenzene (pDClB), which has been presented in Refs [19], [20] and [21], with an LIF spectrum presented in Ref. [22].…”

Rapid Analysis of Gasoline-Contaminated Soil Using Multiphoton Ionization/Time-of-Flight Mass Spectrometry

“…However, benzene (C6H6), which is also present in high concentrations, was less apparent, because the laser wavelength of 266 nm used in the present study is longer than the longest wavelength for the excitation of benzene. 18 The mass resolution of 100 at m/z = 120, obtained in Fig. 2, was poorer than that of the 200 that was obtained as a result of the GC/MPI/TOFMS, shown in Fig.…”

“…[13][14][15][16] MPI/TOFMS combines a high selectivity for aromatic compounds with a high tolerance to contamination. 17,18 In environmental analysis, both content and concentration in real samples are, of course, unknown before measurement. Therefore, it is difficult to decide whether GC could be applied to a real sample.…”

Real-time Monitoring of Monochlorinated Benzene and Polychlorinated Biphenyls in the Gas Phase with On-line Detection: High Chemical Selectivity of Resonance-Enhanced Two-Photon Ionization

“…The IP (ionization potential) of MCB is 9.07 eV. 16,32 It is possible that MCB undergoes a transition to IP by two-photon (wavelength; 263 -265 nm) ionization. As indicated in the figure, the signal intensity of the MCB ions was varied corresponding to the laser wavelength.…”