Applied Physics B

, Volume 98, Issue 1, pp 231–241

Contaminant concentration in environmental samples using LIBS and CF-LIBS

Authors

  • S. Pandhija
    • Laser Spectroscopy Research Laboratory, Department of PhysicsUniversity of Allahabad
  • N. K. Rai
    • Laser Spectroscopy Research Laboratory, Department of PhysicsUniversity of Allahabad
    • Laser Spectroscopy Research Laboratory, Department of PhysicsUniversity of Allahabad
  • S. N. Thakur
    • Department of PhysicsBanaras Hindu University
Article

DOI: 10.1007/s00340-009-3763-x

Cite this article as:
Pandhija, S., Rai, N.K., Rai, A.K. et al. Appl. Phys. B (2010) 98: 231. doi:10.1007/s00340-009-3763-x

Abstract

The present paper deals with the detection and quantification of toxic heavy metals like Cd, Co, Pb, Zn, Cr, etc. in environmental samples by using the technique of laser-induced breakdown spectroscopy (LIBS) and calibration-free LIBS (CF-LIBS). A MATLABTM program has been developed based on the CF-LIBS algorithm given by earlier workers and concentrations of pollutants present in industrial area soil have been determined. LIBS spectra of a number of certified reference soil samples with varying concentrations of toxic elements (Cd, Zn) have been recorded to obtain calibration curves. The concentrations of Cd and Zn in soil samples from the Jajmau area, Kanpur (India) have been determined by using these calibration curves and also by the CF-LIBS approach. Our results clearly demonstrate that the combination of LIBS and CF-LIBS is very useful for the study of pollutants in the environment. Some of the results have also been found to be in good agreement with those of ICP-OES.

PACS

42.62.Fi07.88.+y32.30.-r91.62.Rt92.20.Wx

Copyright information

© Springer-Verlag 2009