LIBS Info: Element Analysis

Title Authors Material Detector Spectrometer Software
Determination of phosphorus in steel by the combined technique of laser induced breakdown spectrometry with laser induced fluorescence spectrometry Hiroyuki Kondo, Naoya Hamada, Kazuaki Wagatsuma Steel ICCD Czerny-Turner (Unspecified)
Laser: Nd:YAG
Gate Delay: 0.050us
Gate Width: Noneus
This paper used LIBS, followed by Laser Induced Fluorescence to measure P in Steel samples. After experimentation, the LIF laser at 255.49nm proved the best for excitation of P (without also pumping Fe transitions). Experiments exploring the relationship between pump laser energy and wavelength showed better results for 532nm (over 1064nm), with increasing P signal with increasing energy. In contrast, increasing the probe laser energy provided no significant increase in signal above 1mJ/cm^2.
Element Detection Limit (ppm) Wavelength (nm) Other Wavelengths (nm) Calibration Method Calibration Range (ppm) Notes
P 5.4000 (Calibration Curve Slope) 214.9100 N/A Univariate -10.0000--10.0000 Result from combined LIBS/LIF measurement

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