Laser Mass Spectrometric Analysis of Polycyclic Aromatic Hydrocarbons with Wide Wavelength Range Laser Multiphoton Ionization Spectroscopy
- 21 May 1998
- journal article
- research article
- Published by American Chemical Society (ACS) in Analytical Chemistry
- Vol. 70 (13) , 2660-2665
- https://doi.org/10.1021/ac971264f
Abstract
In many analytical techniques, 1+1 resonance-enhanced multiphoton ionization (1+1 REMPI) is used because it is an efficient and optically selective soft ionization method. While 1+1 REMPI of jet-cooled molecules has been extensively studied, little has been reported so far about this mechanism as it is used in analytical techniques, that is, in the cases where the molecules are not jet-cooled and where widely varying ionization wavelengths are employed. We used two-step laser mass spectrometry (L2MS) to study the wavelength (238−310 nm) dependence and the laser pulse energy dependence of the ion yield for 17 polycyclic aromatic hydrocarbons (PAHs). We discuss how these data allow prediction of the efficiency of 1+1 REMPI for a given compound. These advances open new perspectives for better understanding the L2MS spectra obtained directly from complex mixtures such as environmental samples.Keywords
This publication has 32 references indexed in Scilit:
- Laser Time-of-Flight Mass Spectrometry of PAH−Picrate ComplexesAnalytical Chemistry, 1997
- Organic Surface Analysis by Two-Laser Ion Trap Mass SpectrometryAnalytical Chemistry, 1997
- Real-Time Quantitative Analysis of Combustion-Generated Polycyclic Aromatic Hydrocarbons by Resonance-Enhanced Multiphoton Ionization Time-of-Flight Mass SpectrometryAnalytical Chemistry, 1997
- Application of two‐step laser mass spectrometry to the chemical analysis of aerosol particle surfacesRapid Communications in Mass Spectrometry, 1995
- Die Multiphotonen‐Ionisations(MUPI)‐MassenspektrometrieAngewandte Chemie, 1988
- Aliphatic and polycyclic aromatic hydrocarbons in urban rain, snow and fogAtmospheric Environment (1967), 1988
- Two-laser photoionization supersonic jet mass spectrometry of aromatic moleculesAnalytical Chemistry, 1988
- Synthesis and x-ray crystal structure of (.mu.3-COCH3)(.mu.2-CH2)(Cp)(MeCp)Fe2Mn(CO)5, the first carbyne-methylene cluster. Carbon-carbon coupling to give a methoxyvinyl clusterJournal of the American Chemical Society, 1987
- Determination of isomeric polycyclic aromatic hydrocarbons in air particulate matter by high-resolution gas chromatography/negative ion chemical ionization mass spectrometryAnalytical Chemistry, 1983
- Analysis of polyaromatic hydrocarbon mixtures with laser ionization gas chromatography/mass spectrometryAnalytical Chemistry, 1983