Analytical and Bioanalytical Chemistry

, Volume 385, Issue 2, pp 281–286

Laser-induced breakdown spectroscopy (LIBS) for carbon single shot analysis of micrometer-sized particles

Authors

    • CEA (Commissariat à l’Energie Atomique) Saclay
  • L. Salmon
    • CEA (Commissariat à l’Energie Atomique) Saclay
Special Issue Paper

DOI: 10.1007/s00216-006-0320-x

Cite this article as:
Vors, E. & Salmon, L. Anal Bioanal Chem (2006) 385: 281. doi:10.1007/s00216-006-0320-x

Abstract

The purpose of this work is to study the ability of the laser-induced breakdown spectroscopy (LIBS) technique to perform in situ (without sample preparation) detection of graphite particles circulating in a gas loop used to simulate the cooling gas circuit of a helium-cooled nuclear reactor. Results obtained with a laboratory scale set up are presented. The experiments were performed in nitrogen with micrometer-sized particles containing carbon (glucose particles and sodium hydrogenocarbonate particles). Statistical shot to shot analysis was used to determine the concentration of the analyte. The variation of LIBS signal as a function of glucose particle diameter showed an underestimation of the signal of particles of diameters larger than 5 μm. This phenomenon is likely to be correlated to an incomplete vaporization in the laser-induced plasma of particles of sizes above 5 μm. Analytical measurements were performed with glucose particles and sodium hydrogenocarbonate particles, and the concentration-based limit of detection of carbon was evaluated to be about 60 μg m−3.

Keywords

Laser-induced breakdown spectroscopyAerosols/particulatesCarbon analysis

Copyright information

© Springer-Verlag 2006