LIBS Info: Element Analysis

Title Authors Material Detector Spectrometer Software
Enhancement of carbon detection sensitivity in laser induced breakdown spectroscopy with low pressure ambient helium gas K.H. Kurniawan, M.O. Tjia, K. Kagawa, D.P. Kurniawan, M M Suliyanti, R. Hedwig, Z.S. Lie, E. Jobiliong, M. Pardede, N. Idris Gems Andor ICCD Czerny-Turner (Unspecified)
Laser: Nd:YAG
Gate Delay: 0.200us
Gate Width: 50.000us
The authors utilise low pressure He atmosphere to enable the analysis of C in Jasper, with minimal damage to the samples. While an ANDOR Mechelle is used for the spectra work, they switch to a McPherson Czerny-Turner spectrograph for the calibration curve development. Results show that 2.6kPa He gives significantly stronger C peaks than 0.5kPa Air (8-10x). Calibration curves were prepared using Pellets of KBr and CaCO3
Element Detection Limit (ppm) Wavelength (nm) Other Wavelengths (nm) Calibration Method Calibration Range (ppm) Notes
C 0.6000 (Calibration Curve Slope) 247.8000 N/A Univariate 5.0000-100.0000 Minimum concentration sample contained 5ppm C. Detection limited inferred from usual 3 sigma/slope

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