Abstract
Determining the isotope ratio of (18O/16O) in environmental N2O by ratio mass spectrometry is difficult because of interference from CO2. Such measurements would be of value in tracing the pathways of N2O in the environment, a subject of current interest.1,2 for the analysis to be useful, variations of the order of δ18O = 1.0%0 must be measurable, where Tunable diode laser (TDL) spectroscopy has been suggested3 as a possible analytical technique, in this method the laser is tuned over two adjacent but well-resolved vibration-rotation absorption lines, one of each isotopic species, while monitoring the transmitted light with a defector.
© 1983 Optical Society of America
PDF ArticleMore Like This
T. B. Sauke, J. R. Podolske, J. F. Becker, M. Loewenstein, V. V. Dinh, and T. D. Gutierrez
TuZ36 OSA Annual Meeting (FIO) 1992
Robert T. Menzies
WA2 Optical Techniques for Remote Probing of the Atmosphere (RPA) 1983
Robert W. Shaw, C. M. Barshick, J. P. Young, and J. M. Ramsey
WB.3 Laser Applications to Chemical Analysis (LACSEA) 1994