LIBS Info: Element Analysis

Title Authors Material Detector Spectrometer Software
Analysis of Rare Earth Elements in Uranium Using Handheld Laser-Induced Breakdown Spectroscopy (HH LIBS) Stephen P Wilson, E. Miller Wylie, Benjamin T. Manard Geological SciAps Z-500 LIBZ analyzer SciAps Z-500 LIBZ analyzer SciAps
Laser: Nd:YAG
Gate Delay: Noneus
Gate Width: Noneus
Uranium Oxide was doped with rare earth elements (Nd, Eu, Yb) to produce calibration curves, which were then used to analyse NIST SRM 610 and 612. Samples were analysed under adhesive tape (to prevent contamination of the equipment) and an Argon gas purge was used to improve the detection limits. Cleaning shots were employed to burn through the tape prior to sample analysis.
Element Detection Limit (ppm) Wavelength (nm) Other Wavelengths (nm) Calibration Method Calibration Range (ppm) Notes
Yb 130.0000 (Calibration Curve Slope) 328.9400 N/A Univariate -10.0000--10.0000 N/A
Nd 320.0000 (Calibration Curve Slope) 415.6100 N/A Univariate -10.0000--10.0000 Based on spiked Uranium Oxide powders
Eu 200.0000 (Calibration Curve Slope) 420.5100 443.56nm Univariate -10.0000--10.0000 %RSD ranged from 8-28%, with lower %RSD for the 420.52nm lines used in the calibration.

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