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Proceedings Paper

Characterization of thermal inkjet technology TNT deposits by fiber optic-grazing angle probe FTIR spectroscopy
Author(s): Oliva M. Primera-Pedrozo; Leonardo Pacheco-Londono; Orlando Ruiz; Michael Ramirez; Yadira M. Soto-Feliciano; Luis F. De La Torre-Quintana; Samuel P. Hernandez-Rivera
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Paper Abstract

Fiber Optic Coupled/Grazing Angle Probe Fourier Transform Infrared Spectroscopy has made possible to develop new methods for detection of traces of chemical compounds on surfaces. Thermal Inkjet Technology is able to deposit very small amounts of chemical compounds, including energetic materials, in a specific location on a surface. Aliquots of TNT solutions were deposited on stainless steel film. A thin coating of TNT can be produced by controlling the concentration of TNT, the number of drops dispensed and the distribution of drops over the surface. A Vector 22, a Bruker Optics FTIR fiber coupled to a Remspec Corp. grazing angle head was used for the experiments. The spectra were recorded at 4 cm-1 resolution and 50 scans. The results of the experiments gave intense absorption bands in the fingerprint region of the infrared spectra that were used for quantification. Chemometrics routines were applied in the enhancement of the quantitative analysis.

Paper Details

Date Published: 20 May 2005
PDF: 10 pages
Proc. SPIE 5778, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense IV, (20 May 2005); doi: 10.1117/12.602451
Show Author Affiliations
Oliva M. Primera-Pedrozo, Univ. of Puerto Rico/Mayaguez (United States)
Leonardo Pacheco-Londono, Univ. of Puerto Rico/Mayaguez (United States)
Orlando Ruiz, Hewlett Packard Puerto Rico (United States)
Michael Ramirez, Hewlett Packard Puerto Rico (United States)
Yadira M. Soto-Feliciano, Univ. of Puerto Rico/Mayaguez (United States)
Luis F. De La Torre-Quintana, Univ. of Puerto Rico/Mayaguez (United States)
Samuel P. Hernandez-Rivera, Univ. of Puerto Rico/Mayaguez (United States)


Published in SPIE Proceedings Vol. 5778:
Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense IV
Edward M. Carapezza, Editor(s)

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