CO2-LASER PHOTOACOUSTIC-SPECTROSCOPY AND ABSOLUTE ABSORPTION-COEFFICIENTS OF SHORT-CHAIN SATURATED FATTY-ACID VAPORS

Authors
FINK T BRAUN R BICANIC D
Citation
T. Fink et al., CO2-LASER PHOTOACOUSTIC-SPECTROSCOPY AND ABSOLUTE ABSORPTION-COEFFICIENTS OF SHORT-CHAIN SATURATED FATTY-ACID VAPORS, Instrumentation science & technology, 26(2-3), 1998, pp. 189-202
Citations number
27
Categorie Soggetti
Instument & Instrumentation","Chemistry Analytical
Journal title
Instrumentation science & technology → ACNP
ISSN journal
10739149
Volume
26
Issue
2-3
Year of publication
1998
Pages
189 - 202
Database
ISI
SICI code
1073-9149(1998)26:2-3<189:CPAAA>2.0.ZU;2-0
Abstract
A resonant photoacoustic cell, capable of contamination free operation at temperatures above that of the ambient, was constructed and used-t o determine absolute absorption coefficients of C6:0 (hexanoic) and C8 :0(octanoic) fatty acid vapours at CO2 laser wavelengths. At atmospher ic pressure, the maximum absorption coefficients at the 9R(32) line of the CO2 laser (1085.77 cm(-1)) are 8.0 atm(-1) cm(-1) (C6:0 at 332 K) and 8.9 atm(-1) cm(-1) (C8:0 at 342 K).