Laser-spectroscopic detection of methylamines for human breath analysis

Author

Marinov, D. ; Rey, J.M. ; Sigrist, M.W.

Author_Institution

ETH Zurich, Zurich

fYear

2007

fDate

17-22 June 2007

Firstpage

1

Lastpage

1

Abstract

Summary form only given. In this study we performed a comparison in the performance of two laser based spectroscopic techniques operating in different spectral regions for investigation of mono-(MMA, CH3NH2) and dimethyl (DMA, (CH3)2NH) amines. A near infrared (IR) system in the region of the first overtone of the N-H stretch vibration based on a cw cavity ringdown (CRD) detection technique and a mid IR system in the region of the fundamental C-H stretch based on a difference frequency generation (DFG) laser source and ratiometric multipass absorption technique.

Keywords

laser applications in medicine; measurement by laser beam; optical frequency conversion; organic compounds; pneumodynamics; spectrochemical analysis; C-H stretch; N-H stretch vibration; cw cavity ringdown detection technique; difference frequency generation; dimethyl amines; human breath analysis; laser-spectroscopic detection; methylamines; mid IR system; near infrared system; ratiometric multipass absorption technique; Electromagnetic wave absorption; Gas lasers; Humans; Infrared detectors; Interference; Performance evaluation; Quantum cascade lasers; Ring lasers; Tunable circuits and devices; Water;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-0931-0

Electronic_ISBN

978-1-4244-0931-0

Type

conf

DOI

10.1109/CLEOE-IQEC.2007.4386411

Filename

4386411