Advertisement

Journal of Radioanalytical and Nuclear Chemistry

, Volume 249, Issue 2, pp 303–305 | Cite as

Halogen determination in Arctic aerosols by neutron activation analysis with Compton suppression methods

  • S. LandsbergerEmail author
  • M. S. Basunia
  • F. Ikander
Article

Abstract

The study of halogens particularly bromine and chlorine in Arctic aerosolshas received a great deal of attention in the past decade in ozone depletionduring polar sunrise studies. Iodine has also been studied as part of geochemicalcycling. We have shown that all three of the above elements can be determinedsimultaneously with very low detection limits using epithermal NAA in conjunctionwith Compton suppression methods. Besides lowering the background considerably,Compton suppression can eliminate or minimize the overlapping peak of the620 keV photopeak arising form the 1642 keV double escape peak of 38Cl interfering with the 616.9 keV photopeak of 79Br(n,γ) 80 Br reaction. Iodine is ideally determined by epithermal NAAbecause of its very good resonance integral cross-section. Although chlorineis usually determined using thermal neutrons via the 37Cl(n,γ) 38Cl reactions, epithermal NAA is still feasible for the Arcticaerosol, since it has a major sea-salt component.

Keywords

Ozone Iodine Bromine Halogen Neutron Activation Analysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    L. A. Barrie,J. W. Bottenheim,R. C. Schnell,P. J. Crutzen,R. A. Rasmussen, Nature, 334 (1988) 138.CrossRefGoogle Scholar
  2. 2.
    J. C. McConell,G. S. Henderson,L. Barrie,J. Bottenheim,H. NIKI,C. H. Langford,E. M. J. Templeton, Nature, 355 (1992) 150.CrossRefGoogle Scholar
  3. 3.
    S. L. Gong,J. L. Walmsley,L. A. Barrie,J. F. Hopper, Atmos. Environ., 31 (1997) 969.CrossRefGoogle Scholar
  4. 4.
    L. A. BARRIE,R. M. HOFF, Atmos. Environ., 18 (1984) 2711.CrossRefGoogle Scholar
  5. 5.
    W. T. Sturges,L. A. Barrie, Atmos. Environ., 22 (1988) 1179.CrossRefGoogle Scholar
  6. 6.
    P. A. Aria,H. Niki,G. W. Harris,K. G. Anlauf,D. E. J. Worthy, Atmos. Environ., 33 (1999) 931.CrossRefGoogle Scholar
  7. 7.
    S. Landsberger,P. K. Hopke,M. D. Cheng, Nucl. Sci. Eng., 110 (1992) 79.CrossRefGoogle Scholar
  8. 8.
    S. R. Biegalski,S. Landsberger, J. Radioanal. Nucl. Chem., 192 (1995) 195.CrossRefGoogle Scholar
  9. 9.
    S. Landsberger,W. D. Cizek,P. Domagala, J. Radioanal. Nucl. Chem., 160 (1992) 277.CrossRefGoogle Scholar
  10. 10.
    S. Landsberger,W. D. Cizek,R. H. Campbell, J. Radioanal. Nucl. Chem. 180 (1994) 55.CrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publishers/Akadémiai Kiadó 2001

Authors and Affiliations

  1. 1.Nuclear Engineering Teaching Lab, PRC-9000University of Texas at AustinUSA

Personalised recommendations