LIBS Info: Element Analysis

Title Authors Material Detector Spectrometer Software
Quantitative elemental imaging of heterogeneous catalysts using laser-induced breakdown spectroscopy V. Motto-Ross, C-P. Lienmann, Y. Blouet, S. Moncayo, L. Sorbier, F. Trichard Pellets Andor Shamrock 500i Andor iStar III LabView
Laser: Nd:YAG
Gate Delay: 0.150us
Gate Width: 1.000us
Specially constructed Pd impregnated Alumina beads were analysed to investigate the capability of LIBS for element concentration mapping. EPMA was used to provide reference concentrations for quantitative analysis. A top hat profile for the laser beam was created to enable more accurate determination of analysed portion of the sample. Microscope level focussing allowed LIBS with pulse energy < 1mJ.
Element Detection Limit (ppm) Wavelength (nm) Other Wavelengths (nm) Calibration Method Calibration Range (ppm) Notes
Pd 18.0000 (Calibration Curve Slope) 340.4500 343.34nm Univariate -10.0000--10.0000 The 340.45nm peak was used for concentrations below 0.1%, with the 343.34nm peak providing better performance for higher concentrations.

Element RMSE (ppm) Wavelength (nm) Calibration Method Notes