Ultrasensitive detection of aromatic hydrocarbons by two-photon photoionization
- 15 July 1980
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 37 (2) , 138-141
- https://doi.org/10.1063/1.91799
Abstract
An optimized multiphoton photoionization detection system has been applied to monitor aromatic‐hydrocarbon vapor density as a function of temperature. The density curves established for naphthalene by this procedure permit estimation of a detection limit of 5×104 molecules/cm3 in a nitrogen buffer gas. With slight modification this method woud be capable of single‐molecule detection limits.Keywords
This publication has 8 references indexed in Scilit:
- Laser two-photon ionization spectroscopy: a new method for real-time monitoring of atmospheric pollutantsOptics Letters, 1979
- Single-atom detection by SONRESIEEE Journal of Quantum Electronics, 1978
- High resolution laser spectroscopy with minute samplesOptics Communications, 1977
- A demonstration of one-atom detectionApplied Physics Letters, 1977
- Absolute measurement of very low sodium-vapor densities using laser resonance fluorescence*Journal of the Optical Society of America, 1975
- Measurement of Hydroxyl Concentrations in Air Using a Tunable uv Laser BeamPhysical Review Letters, 1974
- Enthalpies of vaporization for a number of aromatic compoundsThe Journal of Chemical Thermodynamics, 1972
- The Low-Temperature Thermodynamic Properties of Naphthalene, l-Methylnaphthalene, 2-Methylnaphthalene, 1,2,3,4-Tetrahydronaphthalene,trans-Decahydronaphthalene and cis-DecahydronaphthaleneThe Journal of Physical Chemistry, 1957