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Proceedings Paper

A handheld FTIR spectrometer with swappable modules for chemical vapor identification and surface swab analysis
Author(s): Walter J. Doherty; Brendan Falvey; Greg Vander Rhodes; Leo Krasnobaev; Kenneth Vachon
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Paper Abstract

ThermoFisher Scientific (formerly Ahura Scientific) has developed a handheld, modular detection and identification system for trace-level gases, chemical vapors and aerosols, and swab analyses. The sample chamber is a separate, removable module that can be tailored specifically to the users’ needs. The vapor module can operate in three modes: ambient sampling, vapor/aerosol preconcentration, and direct injection. A swab module can be used to analyze thermally desorbed vapors from a sample swab. Limits of identification for vapors are as low as 0.1 ppm following a 15-min preconcentration period. The swab module can detect as little as 5 μg of TNT.

Paper Details

Date Published: 29 May 2013
PDF: 10 pages
Proc. SPIE 8726, Next-Generation Spectroscopic Technologies VI, 87260T (29 May 2013); doi: 10.1117/12.2015295
Show Author Affiliations
Walter J. Doherty, Thermo Fisher Scientific Inc. (United States)
Brendan Falvey, Thermo Fisher Scientific Inc. (United States)
Greg Vander Rhodes, Thermo Fisher Scientific Inc. (United States)
Leo Krasnobaev, Thermo Fisher Scientific Inc. (United States)
Kenneth Vachon, Thermo Fisher Scientific Inc. (United States)

Published in SPIE Proceedings Vol. 8726:
Next-Generation Spectroscopic Technologies VI
Mark A. Druy; Richard A. Crocombe, Editor(s)

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