Ultrafast laser ablation ICP-MS: role of spot size, laser fluence, and repetition rate in signal intensity and elemental fractionation

2014 ◽  
Vol 29 (2) ◽  
pp. 339-346 ◽  
Author(s):  
Prasoon K. Diwakar ◽  
Jhanis J. Gonzalez ◽  
Sivanandan S. Harilal ◽  
Richard E. Russo ◽  
Ahmed Hassanein
Keyword(s):  
Laser Ablation ◽  
Laser Fluence ◽  
Repetition Rate ◽  
Signal Intensity ◽  
Spot Size ◽  
Ultrafast Laser ◽  
Elemental Fractionation ◽  
Icp Ms ◽  
Ultrafast Laser Ablation

scholarly journals Accurate analysis of Fe isotopes in Fe- dominated minerals by excimer laser ablation MC-ICP-MS on wet plasma conditions

2021 ◽  
Vol 42 (5) ◽  
Author(s):  
Honglin Yuan
Keyword(s):  
Water Vapor ◽  
Laser Ablation ◽  
Matrix Effect ◽  
Laser Fluence ◽  
Pulse Repetition Rate ◽  
Isotopic Analysis ◽  
Spot Size ◽  
Nitrogen Gas ◽  
Icp Ms

The Fe isotope ratios can be a useful tracer of geochemistry, biogeochemistry, and the environmental redox state. In this study, we investigated the feasibility of Fe isotopic analysis in Fe-dominated minerals by 193 nm excimer ns laser ablation combined with Nu Plasma 1700 high resolution MC-ICP-MS without matrix-match calibration. Several important instrument parameters were investigated, such as the effect of the addition of nitrogen gas and water vapor, the effects of analytical parameters such as ablation mode, laser fluence, pulse repetition rate, spot size on Fe isotopic mass bias during analysis were investigated as well. The results showed that the effects of ablation mode, spot size, laser pulse repetition rate, and line scan speed can be neglected, while laser fluence and matrix effects had significant influence on the Fe isotopic mass bias at dry plasma condition. These problems can be minimized using consistent lower fluence (1.5‒3.5 J·cm-2), as well as the wet plasma conditions can significantly reduce the matrix effect in Fe isotopic analysis. Fortunately, with the water vapor and nitrogen gas addition after the ablation cell, an accurate and precise Fe isotope in pyrite, manganite, hematite, and chalcopyrite analysis by ns-LA-MC-ICP-MS can be achieved with non-matrix-matched calibration. The obtained accuracy and reproducibility of the in situ determinations of δ56FeIRMM-014 were both better than ± 0.10‰ (2 SD). This study indicated that there was a serious matrix effect in the Fe isotopic analysis of Fe-dominated minerals by ns- LA-MC-ICP-MS, and nitrogen gas mixed with water vapor-assisted ns- LA-MC-ICP-MS were an appealing option for the in situ Fe isotope analysis of Fe-dominated minerals with non-matrix-matched calibration.

scholarly journals Influence of the Repetition Rate and Pulse Duration on the Incubation Effect in Multiple-Shots Ultrafast Laser Ablation of Steel

2013 ◽  
Vol 41 ◽  
pp. 698-707 ◽  
Author(s):  
F. Di Niso ◽  
C. Gaudiuso ◽  
T. Sibillano ◽  
F.P. Mezzapesa ◽  
A. Ancona ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Pulse Duration ◽  
Repetition Rate ◽  
Ultrafast Laser ◽  
Incubation Effect ◽  
Ultrafast Laser Ablation

scholarly journals Elemental fractionation effects in high repetition rate IR femtosecond laser ablation ICP-MS analysis of glasses

2009 ◽  
Vol 24 (7) ◽  
pp. 891 ◽  
Author(s):  
Fanny Claverie ◽  
Beatriz Fernández ◽  
Christophe Pécheyran ◽  
Joël Alexis ◽  
Olivier F. X. Donard
Keyword(s):  
Laser Ablation ◽  
Femtosecond Laser ◽  
Repetition Rate ◽  
Femtosecond Laser Ablation ◽  
High Repetition Rate ◽  
Elemental Fractionation ◽  
High Repetition ◽  
Ms Analysis ◽  
Icp Ms

scholarly journals Morphological changes in ultrafast laser ablation plumes with varying spot size

2015 ◽  
Vol 23 (12) ◽  
pp. 15608 ◽  
Author(s):  
S. S. Harilal ◽  
P. K. Diwakar ◽  
M. P. Polek ◽  
M. C. Phillips
Keyword(s):  
Laser Ablation ◽  
Morphological Changes ◽  
Spot Size ◽  
Ultrafast Laser ◽  
Ultrafast Laser Ablation

scholarly journals Generation of nanoclusters by ultrafast laser ablation of Al: Molecular dynamics study

2017 ◽  
Vol 1 (6) ◽  
Author(s):  
Alexander Miloshevsky ◽  
Mark C. Phillips ◽  
Sivanandan S. Harilal ◽  
Phillip Dressman ◽  
Gennady Miloshevsky
Keyword(s):  
Molecular Dynamics ◽  
Laser Ablation ◽  
Ultrafast Laser ◽  
Ultrafast Laser Ablation
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