LIBS Info: Element Analysis

Title	Authors	Material	Detector	Spectrometer	Software
Analytical Analysis of Different Karats of Gold Using Laser Induced Breakdown Spectroscopy (LIBS) and Laser Ablation Time of Flight Mass Spectrometer (LA-TOF-MS)	M.A. Baig, Rizwan Ahmed, Nasar Ahmed	Metals	AvaSpec-2048-SPU	AvaSpec-2048-SPU	AVASOFT
Laser:	Nd:YAG 532.0000nm 400.0000mJ 10.000Hz
Gate Delay:	Noneus
Gate Width:	Noneus
Calibration Free LIBS is used to determine the Karat [18/19/20/22/24] for Gold composition in alloys. Calculations of plasma temperature and electron density were also performed and we consistent across the samples, showing low levels of self-absorption. Concentrations were compared to LA-TOF-MS analysis.

LOD
RMSEP

Show entries

Element	Detection Limit (ppm)	Wavelength (nm)	Other Wavelengths (nm)	Calibration Method	Calibration Range (ppm)	Notes
Ag	4.3000 (Calibration Curve Slope)	328.0000	N/A	Univariate	-10.0000--10.0000	Normalised to Au peak at 312nm. Analysis of jewellery grade Au/Ag/Cu alloys
Au	0.0500 (Calibration Curve Slope)	312.2800	N/A	Univariate	750000.0000-999000.0000	Main part of this work uses CF-LIBS for analysis of Gold samples, however this LOD was determined using Univariate Calibration
Cu	17.7500 (Calibration Curve Slope)	-10.0000	N/A	Univariate	-10.0000--10.0000	Analysis of jewellery grade Au/Ag/Cu samples

Showing 1 to 3 of 3 entries

First Previous1Next Last

Show entries

Element	RMSE (ppm)	Wavelength (nm)	Calibration Method	Notes
Au	14142.1356 ppm	-10.0000	CF-LIBS	. . . Analysis of jewellery grade Au/Ag/Cu alloys

Showing 1 to 1 of 1 entries

First Previous1Next Last