LIBS Info: Element Analysis

Title Authors Material Detector Spectrometer Software
Quantitative determination of sulfur content in concrete with laser-induced breakdown spectroscopy F. Weritz, S. Ryahi, D. Schaurich, A. Taffe, G. Wilsch Concrete or Cement Acton Spectra Pro Acton Spectra Pro
Laser: Nd:YAG
Gate Delay: Noneus
Gate Width: Noneus
Analyses are made on cement powder (pressed pellets), (hardened/set) cement samples, concrete and some concrete cores affected by Sulphur. Gating is via a mechanical shutter. 860ms gate width used. Measurements can be made in a range of flowing gases (Air, Ar and He).
Element Detection Limit (ppm) Wavelength (nm) Other Wavelengths (nm) Calibration Method Calibration Range (ppm) Notes
S 2000.0000 (Minimum concentration detected) 921.3000 922.8nm, 923.6nm Univariate Calibration -10.0000--10.0000 Best results obtained in a He atmosphere. Ratio to background used.

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