Determination of plasma ignition threshold fluence during femtosecond single-shot laser ablation on metallic samples detected by optical emission spectroscopy

2015 ◽  
Vol 30 (8) ◽  
pp. 1730-1735 ◽  
Author(s):  
Marina López-Claros ◽  
José M. Vadillo ◽  
J. Javier Laserna
Keyword(s):  
Laser Ablation ◽  
Emission Spectroscopy ◽  
Optical Emission Spectroscopy ◽  
Femtosecond Laser Ablation ◽  
Optical Emission ◽  
Single Shot ◽  
Threshold Fluence ◽  
Plasma Ignition ◽  
Ignition Threshold

The minimum laser fluence needed for plasma ignition on a sample during single-shot femtosecond laser ablation has been determined for a set of metals and alloys.

Inductively Coupled Plasma Optical Emission Spectroscopy Determination of Trace Element Composition of Argan Oil

2010 ◽  
Vol 16 (1) ◽  
pp. 65-71 ◽  
Author(s):  
A. Gonzálvez ◽  
M.E. Ghanjaoui ◽  
M. El Rhazi ◽  
M. de la Guardia
Keyword(s):  
Trace Element ◽  
Inductively Coupled Plasma ◽  
Emission Spectroscopy ◽  
Optical Emission Spectroscopy ◽  
Limit Of Detection ◽  
Optical Emission ◽  
Inductively Coupled ◽  
Argan Oil ◽  
Plasma Optical Emission Spectroscopy

A methodology based on inductively coupled plasma optical emission spectroscopy (ICP-OES) after microwave assisted acid digestion has been developed to determine the trace element content of Moroccan argan oil. Limit of detection values equal or lower than few mg/kg were obtained for all elements under study. To assure the accuracy of the whole procedure, recovery studies were carried out on argan oil samples spiked at different concentration levels from 10 to 200 µg/L. Quantitative average recovery values were obtained for all elements evaluated, demonstrating the suitability of this methodology for the determination of trace elements in argan oil samples. Aluminum, calcium, chromium, iron, potassium, lithium, magnesium, sodium, vanadium and zinc were quantitatively determined in Moroccan argan oils being found that their concentration is different of that found in other edible oils thus offering a way for authentication and for the evaluation of possible adulterations.

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