The influences of ambient humidity on laser-induced breakdown spectroscopy

Abstract

The poor long-term repeatability of laser-induced breakdown spectroscopy (LIBS) is a barrier to its broad adoption. To date, its causes and the mechanisms involved are poorly understood. Despite the potential...

Atomic spectrometry update: review of advances in atomic spectrometry and related techniques

“…The influence of ambient humidity on LIBS spectra of pure copper was investigated by Liu et al 103 At high ambient humidity two opposing effects occurred: sample ablation increased but the lifetime of the laser-induced plasma decreased, resulting in enhanced or depleted Cu I emission signal as a function of the laser energy. Higher emission signals were obtained at pulse laser energies above 15 mJ.…”

Combination of the internal standard and dominant factor PLS for improving long-term stability of LIBS measurements

“…As a result, the long-term RSD for copper and silicon samples decreased from 13.5% and 10.7% to 4% and 6.5%, respectively. Additionally, Liu et al 27 investigated the influence of ambient humidity on LIBS spectra. The impact of environmental humidity on the spectral intensity of copper samples was elucidated, providing evidence that ambient humidity was one of the factors affecting the long-term reproducibility of LIBS.…”