Science and Technology News

Monday, April 3, 2017

Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and Laser Induced Breakdown Spectroscopy (LIBS) Analyses of Paper, Inks, and Soils



Author: Jose Almirall

Abstract: 

The commercial LIBS instrumental results were compared to previously optimized in-house LIBS systems and also to the alternative forensic tools of LA-ICP-MS, mXRF, and SEM-EDS, which offer good analytical performance but suffer from either very high costs and significant complexity (in the case of LS-ICP-MS) or analytical limitations in the form of sample requirement and relatively high detection limits (in the case of mXRF and SEM-EDS).

Although less mature than LA-ICP-MS, LIBS also shares the benefits associated with laser ablation methods, with the added advantage of improved speed, versatility, ease of operation, affordability, and portability.

This project shows that both LA-ICP-MS and LIBS are useful analytical tools for the analysis of paper, inks, soil, and cotton. The results have been presented in analytical chemistry and forensic science journals and venues.

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