OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 21 — Jul. 20, 1999
  • pp: 4705–4710

Dinitrobenzene detection by use of one-color laser photolysis and laser-induced fluorescence of vibrationally excited NO

Jinian Shu, Ilana Bar, and Salman Rosenwaks  »View Author Affiliations


Applied Optics, Vol. 38, Issue 21, pp. 4705-4710 (1999)
http://dx.doi.org/10.1364/AO.38.004705


View Full Text Article

Enhanced HTML    Acrobat PDF (111 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Trace concentrations of 1,4-dinitrobenzene (DNB) are detected by a combination of laser photolysis and laser-induced fluorescence. A one-color laser is applied to induce DNB photodissociation and for subsequent detection of NO photofragments by excitation and emission through A(v′ = 0) ← X(v″ = 0 - 2) and A(v′ = 0) → X(v″ = 0, 1) transitions, respectively. The resulting NO rovibrational excitation spectra serve as markers for the presence of DNB. The NO is produced in vibrational ground and excited states with peak height ratios of (v″ = 0):(v″ = 1):(v″ = 2) = 1:0.5:0.13. The limits of detection of DNB mixed with 100 or 500 Torr of air with v″ = 2 excitation at 248 nm are 13 and 11 parts in 109 by weight, respectively, for a 30-s integration time. The application of this scheme for DNB detection has the advantage that no ambient ground state NO interferes and that the fluorescence is collected at shorter wavelengths than the exciting radiation, precluding background fluorescence.

© 1999 Optical Society of America

OCIS Codes
(300.2530) Spectroscopy : Fluorescence, laser-induced
(350.3450) Other areas of optics : Laser-induced chemistry
(350.5130) Other areas of optics : Photochemistry

History
Original Manuscript: January 22, 1999
Revised Manuscript: March 30, 1999
Published: July 20, 1999

Citation
Jinian Shu, Ilana Bar, and Salman Rosenwaks, "Dinitrobenzene detection by use of one-color laser photolysis and laser-induced fluorescence of vibrationally excited NO," Appl. Opt. 38, 4705-4710 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-21-4705


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. H. I. Schiff, “Ground based measurements of atmospheric gases by spectroscopic methods,” Ber. Bunsenges. Phys. Chem. 96, 296–306 (1992). [CrossRef]
  2. J. Pfab, “Laser-induced fluorescence and ionization spectroscopy of gas phase species,” in Spectroscopy in Environmental Science, R. J. H. Clark, R. E. Hester, eds. (Wiley, New York, 1995), pp. 149–222.
  3. J. B. Simeonsson, R. C. Sausa, “A critical review of laser photofragmentation/fragment detection techniques for gas-phase chemical analysis,” Appl. Spectrosc. Rev. 31, 1–72 (1996). [CrossRef]
  4. G. W. Lemire, J. B. Simeonsson, R. C. Sausa, “Monitoring of vapor-phase nitro compounds using 226 nm radiation: fragmentation with subsequent NO resonance-enhanced multiphoton ionization,” Anal. Chem. 65, 529–533 (1993). [CrossRef]
  5. D. Wu, J. P. Singh, F. Y. Yueh, D. L. Monts, “2,4,6-Trinitrotoluene detection by laser-photofragmentation–laser-induced fluorescence,” Appl. Opt. 35, 3998–4003 (1996). [CrossRef] [PubMed]
  6. J. D. Bradshaw, M. O. Rodgers, S. T. Sandholm, S. Kesheng, D. D. Davis, “A two-photon laser-induced fluorescence field instrument for ground-based and airborne measurements of atmospheric NO,” J. Geophys. Res. 90, 12,861–12,873 (1985). [CrossRef]
  7. S. T. Sandholm, J. D. Bradshaw, K. S. Dorris, M. O. Rodgers, D. D. Davis, “An airborne compatible photofragmentation two-photon laser induced fluorescence instrument for measuring background tropospheric levels of NO, NOx, and NO2,” J. Geophys. Res. 95, 10,155–10,161 (1990). [CrossRef]
  8. N. Daugey, J. Shu, I. Bar, S. Rosenwaks, “Nitrobenzene detection by one-color laser-photolysis/laser induced fluorescence of NO (v″ = 0–3),” Appl. Spectrosc. 53, 57–64 (1999). [CrossRef]
  9. M. Godfrey, J. N. Murrell, “Substituent effects on the electronic spectra of aromatic hydrocarbons. III. An analysis of the spectra of amino- and nitrobenzenes in terms of the localized-orbital model,” Proc. R. Soc. London Ser. A 278, 71–90 (1964). [CrossRef]
  10. K. W. D. Ledingham, “The use of lasers to detect strategic and environmentally sensitive materials,” Phys. Scr. T 58, 100–103 (1995). [CrossRef]
  11. A. Marshall, A. Clark, K. W. D. Ledingham, J. Sander, R. P. Singhal, “Laser ionisation studies of nitroaromatic and NOx (x = 1 or 2) molecules in the region 224–238 nm,” Int. J. Mass Spectrom. Ion Processes 125, R21–R26 (1993). [CrossRef]
  12. T. E. Daubert, R. P. Danner, Physical and Thermodynamic Properties of Pure Chemicals: Data Compilation, National Standard Reference Data System and American Institute of Chemical Engineers, Part 3 (Taylor & Francis, Washington, D.C., 1994).
  13. J. Luque, D. R. Crosley, “lifbase: database and spectral simulation program (version 1.4),” (SRI International, 333 Ravenswood Ave., Menlo Park, Calif. 94025-3493, 1998).
  14. L. Bigio, R. S. Tapper, E. R. Grant, “The role of near-resonant intermediate states in the two-photon excitation of NO2: the distinct dynamics of two-photon photofragmentation,” J. Phys. Chem. 88, 1271–1273 (1984). [CrossRef]
  15. D. B. Galloway, J. A. Bartz, L. G. Huey, F. F. Crim, “Pathways and kinetic energy disposal in the photodissociation of nitrobenzene,” J. Chem. Phys. 98, 2107–2114 (1993). [CrossRef]
  16. C. Kosmidis, K. W. D. Ledingham, A. Clark, A. Marshall, R. Jennings, J. Sander, R. P. Singhal, “On the dissociation pathways of nitrobenzene,” Int. J. Mass Spectrom. Ion Processes 135, 229–242 (1994). [CrossRef]
  17. J. Danielak, U. Domin, R. Kepa, M. Rytel, M. Zachwieja, “Reinvestigation of the emission γ band system (A2Σ+ → X2Π) of the NO molecule,” J. Mol. Spectrosc. 181, 394–402 (1997). [CrossRef]
  18. R. Zhang, D. R. Crosley, “Temperature dependent quenching of A2Σ+ NO between 215 and 300 K,” J. Chem. Phys. 102, 7418–7424 (1995). [CrossRef]
  19. M. C. Drake, J. W. Ratcliffe, “High temperature quenching cross sections for nitric oxide laser-induced fluorescence measurements,” J. Chem. Phys. 98, 3850–3865 (1993). [CrossRef]
  20. C. N. R. Rao, “Spectroscopy of the nitro group,” in Chemistry of the Nitro and Nitroso Groups, H. Feuer, ed. (Interscience, New York, 1969), pp. 79–137.

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Figures

Fig. 1 Fig. 2 Fig. 3
 
Fig. 4 Fig. 5
 

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited