LIBS Info: Element Analysis

Title Authors Material Detector Spectrometer Software
Analysis of powdered tungsten carbide hard-metal precursors and cemented compact tungsten carbides using laser-induced breakdown spectroscopy K. Novotny, A. Stankova, H. Hakkanene, J. Korppi-Tommola, V. Otruba, V. Kanicky Tungsten Carbide DiCAM-Pro-12 Mechelle 7500
Laser: ArF Excimer
Gate Delay: Noneus
Gate Width: Noneus
The researchers use several laser systems (Nd:YAG @ 1064nm and 266nm) and detection systems to investigate the LIBS analysis of Tungsten Carbide samples. Different analysis atmospheres (Air, Ar and He) are also tested.
Element Detection Limit (ppm) Wavelength (nm) Other Wavelengths (nm) Calibration Method Calibration Range (ppm) Notes
Nb 1000.0000 (Lowest Determinable Quantity) 405.8930 N/A Univariate 200.0000-32100.0000 Depending on laser (Nd:YAG @ 1064nm or 266nm) and atmosphere (Air or Argon) LDQ in range 1000-8000ppm determined. Calibration curve is strongly self-absorbed about 3%
Ti 6000.0000 (Lowest Determinable Quantity) 361.0300 N/A Univariate 400.0000-63700.0000 Best result used cemented samples.
Ta 13000.0000 (Lowest Determinable Quantity) 648.5300 N/A Univariate 1200.0000-82300.0000 Self absorption would hamper the used of this peak about ~1-2% Ta
Co 40000.0000 (Lowest Determinable Quantity) 350.2300 N/A Univariate 36700.0000-12900.0000 The authors had considerable trouble obtaining any calibration curves for this element. r^2 was 0.7999 for Co vs >0.96 for other elements studied

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