LIBS Info: Element Analysis

Title Authors Material Detector Spectrometer Software
Detection of Metals in the Environment using a Portable Laser-Induced Breakdown Spectroscopy Instrument Karen Y. Yamamoto, David A. Cremers, Monty J. Ferris, Leeann E. Foster Paint 6132 HR320
Laser: Nd:YAG
1064.0000nm
20.0000mJ
0.500Hz
Gate Delay: 0.100us
Gate Width: 0.500us
This paper explores the use of a LIBS rig suitable for use in the field with a focus on low power requirements and small size. The paint was spread on a wood substrate and then analysed in-situ.
Element Detection Limit (ppm) Wavelength (nm) Other Wavelengths (nm) Calibration Method Calibration Range (ppm) Notes
Ba 265.0000 (Stated) 455.4000 N/A Univariate Calibration -10.0000--10.0000 Best calibration curve resulted when Ba (455.4nm) peak was ratioed to the Fe(i) peak at 404.58nm
Be 9.3000 (Stated) 313.0400 313.11 Univariate Calibration -10.0000--10.0000 The Be(II) peaks at 313.04/313.11nm could not be resolved and both were used for the calibration curve. Best results were obtained when this (combined) peak was ratioed to the Si(I) peak at 288.16nm. Better results (LOD=4.4ppm) were obtained using a cylindrical rather than a spherical focusing lens.
Pb 298.0000 (Stated) 405.7800 N/A Univariate Calibration -10.0000--10.0000 Best results were obtained when the Pb peak was ratioed to the Si Peak at 390.55nm
Sr 42.0000 (Stated) 407.7700 N/A Univariate Calibration -10.0000--10.0000 Best results were obtained when the Sr peak was ratioed to the Fe peak at 406.36nm


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