Article | REF: P151 V1

Laser induced breakdown spectroscopy (LIBS) for chemical and biological diagnosis

Authors: Philippe ADAM, Nicolas LEONE

Publication date: May 10, 2013

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ABSTRACT

In the field of chemical analysis for diagnostics, the laser is a favored tool which allows to perform detection and identification operations in extremely varied environmental conditions. The practical advantages of measurements by laser techniques are principally the in situ analysis of samples without sampling or contact, fast data acquisition and use for local or remote analysis. The performances of the laser induced breakdown spectroscopy are described and illustrated by practical examples and experimental results.

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 INTRODUCTION

When it comes to chemical analysis and diagnostics, lasers are an ideal tool, enabling detection and identification operations to be carried out in a wide variety of environmental conditions. The practical advantages of laser measurement techniques include in situ analysis without sampling or contact, rapid data acquisition and use for local or remote analysis.

In this article, we use practical examples to illustrate the performance of Laser Induced Breakdown Spectroscopy (LIBS – ). After presenting the principles and performance (calibration, qualitative and/or quantitative analysis) of this technique, we will report on experimental results in various fields, such as the detection and identification of chemical aerosols or bacterial diagnostics.

This article is taken from the journal "Annales des falsifications, de l'expertise chimique et toxicologique" n° 977 published by the SECF (Société des experts chimistes de France).

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KEYWORDS

applications   |   laser   |   chemical aerosol   |   biological aerosol   |   chemistry   |   biology   |   plasma spectroscopy   |   Principal Components Analysis (PCA)


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