Open AccessDetermination of N_2O isotopomers with quantum cascade laser based absorption spectroscopy
Author(s) -
Helen Waechter,
Joachim Mohn,
Béla Tuzson,
Lukas Emmenegger,
Markus W. Sigrist
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.009239
Subject(s) - isotopomers , spectroscopy , quantum cascade laser , optics , isotope , laser , absorption (acoustics) , absorption spectroscopy , materials science , nitrous oxide , analytical chemistry (journal) , mixing ratio , cavity ring down spectroscopy , attenuation coefficient , physics , chemistry , spectral line , organic chemistry , chromatography , quantum mechanics , astronomy , atmospheric sciences
We present an analytical technique based on direct absorption laser spectroscopy for high precision and simultaneous determination of the mixing ratios of the most abundant nitrous oxide isotopic species: (14)N(15)N(16)O, (15)N(14)N(16)O and (14)N(2) (16)O. A precision of 0.5 ??? was achieved for the site specific isotope ratios of N(2)O at 90 ppm using an averaging time of 300 s.