Improvements in Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry for Forensic Analysis.

摘要

Laser ablation inductively coupled plasma-mass spectrometry (LA-ICP-MS) was evaluated for elemental analysis of tapes and copper wires for forensic comparison purposes. Both a conventional 10 ns laser and a short pulse (100 fs) laser were used. Principal components analysis (PCA) was used for data interpretation and for pairwise comparisons of samples based on elemental composition.