Abstract
Laser mass spectrometry is a newly developed method for pollutant detection. It combines resonance-enhanced multiphoton ionization (REMPI) and time-of-flight mass spectrometry (TOF-MS). It may detect pollutants with high sensitivity, high selectivity and in a multi-component way. In this note, laser mass spectrometry was used to detect the pollutants in exhaust gases from vehicles. With one-color REMPI (at 266 nm), several aromatic hydrocarbons, including benzene, toluene, xylene, C3-benzene, etc., were detected. These substances were selectively ionized by (1+1) REMPI and their mass resolution was detected by a TOE mass spectrometer. And a quantitative analysis was achieved.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Welckhardt, C., Boesl, U., Schlag, E. W., Laser mass spectrometry for time-resolved multicomponent analysis of exhaust gas, Anal. Chem., 1994, 66: 1062.
Cui Jiusi, Wang Qinyuan, Wang Hanping, Atmospheric Pollutants Monitoring Methods (in Chinese), 2nd ed., Beijing: Chemical Industry Press, 1997, 383.
Boesl, U., Weickhardt, C., Schmidt, S. et al., Calibration method for the quantitative analysis of gas mixtures by multiphoton ionization mass spectrometry, Rev. Sci. Instrum., 1993, 64(12): 3482.
Weickhardt, C., Zimmermann, R., Boesl, U. et al., Laser mass spectrometry of dibenzodioxin, dibenzofuran and two isomers of dichorodibenzodioxins: Selective ionization, Rap. Commu. in Mass Spectra., 1993, 7: 183.
Zimmermann, R., Heger, H. J., Blumenstock, M. et al., On-line measurement of chlorobenzene in waste incineration flue gas as a surrogate for the emission of polychlorinated dibenzo-pdioxins/ furans (I-TEQ) using mobile resonance laser ionization time-offlight mass spectrometry, Rap. Commu. in Mass Spectra., 1999, 13: 307.
Letokhov, V. S., Laser Photoionization Spectroscopy, Orland: Academic, 1987, 12.
Butler, L. X., Neumark, D. M., Photodissociation dynamics, J. Phys. Chem., 1996, 100: 12801.
Armentrout, P. B., Baer, T., Gas-phase ion dynamics and chemistry, J. Phys. Chem., 1996, 100: 12866.
Zhang Liandi, Wei Jie, Jiang Yunyun et al, Multiphoton ionization mass spectra of n-C3H7I and i-C3H7I at 532 nm, Acta Physica Simca (Overseas Edition), 1998, 7(4): 271.
Potts, W. J. Jr., Low-temperature absorption spectra of benzene, toluene, and para-xylene in the farther ultraviolet region, J. Chem. Phys., 1955, 23: 73.
Lubman, D. M., Kronick, M. N., Discrimination of xylene by resonance enhanced two-photon ionization, Anal. Chem., 1982, 54: 2289.
Author information
Authors and Affiliations
About this article
Cite this article
Zhang, L., Wei, J., Zheng, H. et al. Laser mass spectrometry for high sensitive and multi-com- ponent analysis of exhaust gas from vehicles. Chin.Sci.Bull. 46, 86–88 (2001). https://doi.org/10.1007/BF03183218
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF03183218