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Proceedings Paper

Measurement of ammonia skin gas using a mid-infrared Pb-salt tunable diode laser
Author(s): Trocia N. Clasp; Sindhu Kaimal; Scott W. Reeve; William A. Burns
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Paper Abstract

The concentration of Ammonia excreted through human skin has recently been measured using a gas chromatograph equipped with a flame ionization detector (GC-FID) by a group from Nagoya, Japan. These emissions, referred to as ammonia skin gas, were determined to be 1.7±.4 ng/cm3 for healthy subjects in the study. To achieve greater molecule specificity, sensitivity, as well as add a real time capability, we are investigating the potential of a mid IR laser spectrometer, consisting of a Pb-salt diode laser coupled with a low volume 75 meter Herriott gas sample cell, to perform real time ammonia diagnostic measurements. Here we will present a series of preliminary ammonia skin gas measurements obtained with this mid IR laser system.

Paper Details

Date Published: 5 May 2010
PDF: 7 pages
Proc. SPIE 7665, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI, 766518 (5 May 2010); doi: 10.1117/12.850487
Show Author Affiliations
Trocia N. Clasp, Arkansas State Univ. (United States)
Sindhu Kaimal, Arkansas State Univ. (United States)
Scott W. Reeve, Arkansas State Univ. (United States)
William A. Burns, Arkansas State Univ. (United States)

Published in SPIE Proceedings Vol. 7665:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI
Augustus Way Fountain III; Patrick J. Gardner, Editor(s)

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