Numéro
J. Phys. IV France
Volume 01, Numéro C7, Décembre 1991
2nd International Conference
Laser M2P
Page(s) C7-689 - C7-693
DOI http://dx.doi.org/10.1051/jp4:19917185
2nd International Conference
Laser M2P

J. Phys. IV France 01 (1991) C7-689-C7-693

DOI: 10.1051/jp4:19917185

TRACE ANALYSIS BY LASER-EXCITED ATOMIC FLUORESCENCE WITH ATOMIZATION IN A PULSED PLASMA

O.S. LUNYOV, S.V. OSHEMKOV and A.A. PETROV

Institute of Physics, Leningrad State University, Ul'Yanovskaya 1, Petrodvorets, Leningrad 198904, USSR


Abstract
The possibilities of plasma atomization for laser fluorescence trace analysis are discussed. Pulsed hot hollow cathode discharge was used for analysis of solutions and powdered samples. The high voltage spark and laser-induced breakdown (laser spark) were used as atomizers of metal-containing atmospheric aerosols. Detection limits were improved by means of temporal background selection.



© EDP Sciences 1991