Material Analysis in Fast Industrial Processes by LIBS

Abstract

Laser‐induced breakdown spectroscopy (LIBS) is recognized as a versatile technique for material analysis; especially in applications in which speed of analysis, sensitivity, and need for minimal or no sample preparation are key issues. These features make LIBS attractive for inline process monitoring, e.g. for material screening and sorting as well as for quality control purposes. However, the transfer of LIBS technology from the lab into high‐speed industrial environments entails technical and analytical challenges which we address in this article.

A LIBS spectrum baseline correction method based on the non-parametric prior penalized least squares algorithm

“…Laser-induced breakdown spectroscopy (LIBS) is a rapid, nondestructive or micro-destructive, multi-element simultaneous spectrum detection technique that can be used in industrial analysis, food safety, and mineral research. [1][2][3][4][5][6][7] Affected by the experimental environment and temperature, the LIBS spectrum usually has an extensive continuous background (baseline). The baseline of the LIBS spectrum is the result of a combination of factors.…”

Depth-Resolved Elemental Analysis on Moving Electrode Foils with Laser-Induced Breakdown Spectroscopy

“…Laser-induced breakdown spectroscopy (LIBS) is often used for the elemental analysis of solid and homogeneous materials, such as alloy determination [ 1 ] in the metal industry and rock composition [ 2 ] in the mining industry, as it is fast, all-optical and does not need extensive sample preparation in a laboratory. However, LIBS can also be used for depth-resolved elemental analysis.…”