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Detection of mercury in air by time-resolved laser-induced breakdown spectroscopy technique

Published online by Cambridge University Press:  09 March 2009

C. Lazzari
Affiliation:
Istituto di Fisica Atomica e Molecolare del C.N.R., Via del Giardino, 7–56127 Pisa, Italy
M. De Rosa
Affiliation:
Istituto di Fisica Atomica e Molecolare del C.N.R., Via del Giardino, 7–56127 Pisa, Italy
S. Rastelli
Affiliation:
Istituto di Fisica Atomica e Molecolare del C.N.R., Via del Giardino, 7–56127 Pisa, Italy
A. Ciucci
Affiliation:
Istituto di Fisica Atomica e Molecolare del C.N.R., Via del Giardino, 7–56127 Pisa, Italy
V. Palleschi
Affiliation:
Istituto di Fisica Atomica e Molecolare del C.N.R., Via del Giardino, 7–56127 Pisa, Italy
A. Salvetti
Affiliation:
Istituto di Fisica Atomica e Molecolare del C.N.R., Via del Giardino, 7–56127 Pisa, Italy

Abstract

For several years the laser-induced breakdown spectroscopy (LIBS) technique has been applied successfully to the problem of detecting small traces of pollutants in gases. The possible application of this method for the individuation of mercury in air is discussed. The laboratory prototype of the detection system is described in detail, and the sensitivity of the system for the diagnostics of small traces of mercury is determined. The reduced dimensions of the experimental apparatus and its relatively low cost make the LIBS method competitive with other laser-based methods for in situ analysis.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1994

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