LIBS Info: Element Analysis

Title Authors Material Detector Spectrometer Software
Optimization of chemical and instrumental parameters in hydride generation laser-induced breakdown spectrometry for the determination of arsenic, antimony, lead and germanium in aqueous samples Serife Yalcin, Semira Unal Yesiller Liquids Mechelle 5000 Andor iStar ICCD
Laser: Nd:YAG
532.0000nm
160.0000mJ
10.000Hz
Gate Delay: 3.000us
Gate Width: 100.000us
The production of metal hydrides is used to increase the sensitivity of LIBS analysis of liquids. The authors undertake an extensive study to optimise the experimental conditions for inert gas (Ar providing significant improvement for most elements), delay and gate times, spectral line, flow rate and the addition of oxidizing/reducing agents to improve detection limits.
Element Detection Limit (ppm) Wavelength (nm) Other Wavelengths (nm) Calibration Method Calibration Range (ppm) Notes
Ge 0.2000 (Calibration Curve Slope) 265.1000 N/A Univariate -10.0000--10.0000 Significant enhancement in sensitivity is achieved by Hydride formation, then optimisation of analysis conditions.
Pb 1.3000 (Calibration Curve Slope) 405.8000 N/A Univariate -10.0000--10.0000 Significant enhancement in sensitivity is achieved by Hydride formation, then optimisation of analysis conditions.
Sb 1.0000 (Calibration Curve Slope) 259.8000 N/A Univariate -10.0000--10.0000 Significant enhancement in sensitivity is achieved by Hydride formation, then optimisation of analysis conditions.
As 1.1000 (Calibration Curve Slope) 278.0000 N/A Univariate -10.0000--10.0000 Significant enhancement in sensitivity is achieved by Hydride formation, then optimisation of analysis conditions.


Element RMSE (ppm) Wavelength (nm) Calibration Method Notes
Pb 2.4471 ppm 405.8000 Univariate Calibration . . Significant enhancement in sensitivity is achieved by Hydride formation, then optimisation of analysis conditions.
Sb 0.0117 ppm 259.8000 Univariate Calibration Significant enhancement in sensitivity is achieved by Hydride formation, then optimisation of analysis conditions. . .
As 1.4842 ppm 278.0000 Univariate Calibration . . Significant enhancement in sensitivity is achieved by Hydride formation, then optimisation of analysis conditions.
Ge 0.8171 ppm 265.1000 Univariate Calibration . Significant enhancement in sensitivity is achieved by Hydride formation, then optimisation of analysis conditions. Significant enhancement in sensitivity is achieved by Hydride formation, then optimisation of analysis conditions.