Application of two‐step laser mass spectrometry to the chemical analysis of aerosol particle surfaces
- 1 January 1995
- journal article
- research article
- Published by Wiley in Rapid Communications in Mass Spectrometry
- Vol. 9 (2) , 119-127
- https://doi.org/10.1002/rcm.1290090204
Abstract
Two‐step laser mass spectrometry (L2MS) was applied to study the chemical nature of adsorbates on aerosol particles which were collected from different sites, e.g. in the countryside, in an industrial zone, by a downtown road, and in a tunnel. The method combines infrared laser desorption from the particle surfaces followed by ultraviolet laser post‐ionization of the desorbed neutral molecules. Because of the high sensitivity and optical selectivity of L2MS, virtually no sample preparation is needed, and mass spectra can be recorded in a very short time. Qualitative and quantitative comparisons of polycyclic aromatic hydrocarbons in different sampling areas were carried out. By scanning the ionization laser wavelength, two‐dimensional UV/MS spectra can be generated for better identification of the adsorbed species.Keywords
This publication has 32 references indexed in Scilit:
- Application of two-step laser mass spectrometry to the analysis of polynuclear aromatic hydrocarbons in contaminated soilsEnvironmental Science & Technology, 1993
- Optical and thermal measurements of black carbon aerosol content in different environments: Variation of the specific attenuation cross-section, sigma (σ)Atmospheric Environment. Part A. General Topics, 1993
- High temperature UV absorption characteristics of three environmentally sensitive compoundsJournal of Photochemistry and Photobiology A: Chemistry, 1992
- Microscopic organic analysis using two-step laser mass spectrometry: application to meteoritic acid residuesAnalytical Chemistry, 1992
- The dermal carcinogenic potential of unrefined and hydrotreated lubricating oilsJournal of Applied Toxicology, 1989
- Analytical multiphoton ionization mass spectrometry. Part I. Theory and instrumentationMass Spectrometry Reviews, 1988
- The influence of humidity, sunlight, and temperature on the daytime decay of polyaromatic hydrocarbons on atmospheric soot particlesEnvironmental Science & Technology, 1988
- A High-Resolution Time-of-Flight Mass Spectrometer With Laser Desorption and a Laser Ionization SourceInstrumentation Science & Technology, 1987
- The formation of nitro-PAH from the gas-phase reactions of fluoranthene and pyrene with the OH radical in the presence of NOxAtmospheric Environment (1967), 1986
- Determination of isomeric polycyclic aromatic hydrocarbons in air particulate matter by high-resolution gas chromatography/negative ion chemical ionization mass spectrometryAnalytical Chemistry, 1983