| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1236583 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2006 | 4 Pages |
Abstract
The use of photoacoustic spectroscopy and mid-infrared quantum-cascade lasers (QCLs) for the detection of hexamethyldisilazane (HMDS) is reported. A detection limit of 200 parts in 109 is found using a Fabry-Perot QCL operated at 8.4 μm in pulsed mode and a photoacoustic cell equipped with four electret microphones. The laser multimode spectrum matches the range of the N-H bending absorption band of HMDS. Further improvements to reach lower detection limits are discussed.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
A. Elia, F. Rizzi, C. Di Franco, P.M. Lugarà , G. Scamarcio,