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Laser-Based Sensitive Detection of Energetic Materials

Published online by Cambridge University Press:  15 February 2011

G. W. Lemire ,
J. B. Simeonsson  and
R. C. Sausa
G. W. Lemire
Affiliation:
US Army Research Laboratory, AMSRL-WT-PC, Aberdeen Proving Ground, MD 21005 NRC/ARL Postdoctoral Research Associate
J. B. Simeonsson*
Affiliation:
US Army Research Laboratory, AMSRL-WT-PC, Aberdeen Proving Ground, MD 21005
R. C. Sausa*
Affiliation:
US Army Research Laboratory, AMSRL-WT-PC, Aberdeen Proving Ground, MD 21005
*
* NRC/ARL Postdoctoral Research Associate
* To whom correspondence should be addressed
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Abstract

The development of a novel technique for sensing trace vapors of -NO2 containing compounds is reported. This technique is based on the use of one laser operating at 226 nm to both photofragment the target molecule and detect the characteristic NO fragment, formed from a rapid predissociation of NO2, by resonance-enhanced multiphoton ionization (REMPI) via its A2Σ+ - X2Π (0,0) band origin. The analytical utility of this technique is demonstrated on a number of compounds, including dimethylnitramine, nitromethane, nitrobenzene, TNT, and RDX, employing molecular beam sampling with time-of-flight mass spectrometric analysis of the jet cooled analyte seeded in an atmosphere of buffer gas. For RDX and TNT, a detection limit of 8 and 24 ppb, respectively, is demonstrated using a laser energy of 100 microjoules/pulse.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 296: Symposium Y – Structure and Properties of Energetic Materials , 1992 , 373
Copyright
Copyright © Materials Research Society 1993

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References

1. Zhu, J., Lustig, D., Sofer, I.S., and Lubman, D.M., Anal. Chem. 62, 2225 (1990).Google Scholar
2. Feinberg, A., Science, 255, 1531 (1992).Google Scholar
3. Syage, J.A., Pollard, J.E., and Cohen, R.B., Technical Report-SD-TR-88-13, Space Division Air Force Systems Command (February 1988).Google Scholar
4. McQuaid, M.J. and Sausa, R.C., Appl. Spectrosc. 45, 916 (1991).Google Scholar
5. Smit, K.J., J. Energ. Mater. 9, 81 (1991).Google Scholar
6. Capellos, C., Papagiannakopoulos, P., and Liang, Y., Chem. Phys. Lett. 164, 533 (1989).CrossRefGoogle Scholar
7. McQuaid, M.J., Miziolek, A.W., Sausa, R.C., and Merrow, C.N., J. Phys. Chem. 95, 2713 (1991).CrossRefGoogle Scholar
8. Moss, D.B., Trentelman, K.A., and Houston, P.L., J. Chem. Phys. 96, 237, (1992) and references therein.Google Scholar
9. Mialocq, J.C. and Stephenson, J.C., Chem. Phys. Lettt. 123, 390 (1986).Google Scholar
10. Donnelly, V.M. and Kaufman, F., J. Chem. Phys. 69, 1456 (1978).Google Scholar
11. Morrison, R.J.S. and Grant, E.R., J. Chem. Phys. 77, 5994 (1982).Google Scholar
12. Morrison, R.J.S., Rockney, B.H., and Grant, E.R., J. Chem. Phys. 75, 2643 (1981).Google Scholar
13. McKendrick, G.B., Fotakis, C., and Donovan, R.J., J. Photochemistry, 20, 175 (1982).Google Scholar
14. Wiley, W.C. and McLaren, I.H., Rev. Sci. Instrum. 26, 1150 (1955).CrossRefGoogle Scholar
15. Karataev, V.I., Mamyrin, B.A., and Shmikk, D.V., Sov. Phys. Tech. Phys. 16, 1177 (1972).Google Scholar
16. Handbook of Chemistry and Physics, 66th ed. (CRC Pres, Inc., Boca Raton, Florida, 1986) pp. D196–D212.Google Scholar
17. Lawrence Livermore National Laboratory Explosives Handbook: Properties of Chemical Explosives and explosives Simulants, edited by B.M. Dobratz, LLNL Report UCRL-52997, (March 1981).Google Scholar
18. Miller, J.C., AnaL Chem. 58, 1702 (1986).Google Scholar
19. Huang, S.D., Kolaitis, L., and Lubman, D.M., Appl. Spectrosc. 41, 1371 (1987).Google Scholar
20. Schendel, J., Hohmann, R., and Wehry, E.L., Appl. Spectrosc. 41, 640 (1987).Google Scholar