CHP Home GenChem     Analytical     Instrumentation     Index   

Laser-Induced Breakdown Excitation Source

Introduction

When a high-energy laser pulse is focused into a gas or liquid, or onto a solid surface, it can cause dielectric breakdown and create a hot plasma. For solids the laser pulse also ablates material into the gas phase. The energy of the laser-created plasma can atomize, excite, and ionize analyte species, which can then be detected and quantified by atomic-emission spectroscopy or mass spectrometry.


 Top of Page   
 Copyright © 2000 by Brian M. Tissue, all rights reserved.