LIBS Info: Element Analysis

Title	Authors	Material	Detector	Spectrometer	Software
Controlled inert gas environment for enhanced chlorine and fluorine detection in the visible and near-infrared by laser-induced breakdown spectroscopy B	George Asimellis, Stephen Hamilton, A. Giannoudakos, M. Kompitsas	Pharmaceuticals	Andor iStar III	Jobin-Yvon HRP
Laser:	Nd:YAG 355.0000nm 26.0000mJ 5.000Hz
Gate Delay:	0.100us
Gate Width:	20.000us
The main point of the paper is to explore the improvement of detection limits for F and Cl. The samples (pharmaceutical and NaCl/NaF) were chosen for their easy preparation for analysis. Experiments were performed in a low pressure (up to 1atm) He environment. S/N was found to be strongly He pressure dependent. 355nm laser provided better sensitivity as it resulted in lower Bremstrahlung background than using 1064nm pulses.

LOD
RMSEP

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Element	Detection Limit (ppm)	Wavelength (nm)	Other Wavelengths (nm)	Calibration Method	Calibration Range (ppm)	Notes
Cl	3750.0000 (Minimum concentration detected)	837.5900	N/A	Univariate Calibration	-10.0000--10.0000	The authors anticipated lower detection limits were possible with their apparatus, but did not explore this.
F	300.0000 (Minimum concentration detected)	685.6000	N/A	Univariate Calibration	-10.0000--10.0000	No correction by ratio was used as no good candidate element in spectral range.

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Element	RMSE (ppm)	Wavelength (nm)	Calibration Method	Notes
No data available in table

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