scholarly journals Spatially-resolved uranium isotopic analysis of contaminated scrap metal using laser ablation multi-collector ICP-MS

RSC Advances ◽  
2020 ◽  
Vol 10 (28) ◽  
pp. 16629-16636 ◽  
Author(s):  
Michael Krachler ◽  
Maria Wallenius ◽  
Adrian Nicholl ◽  
Klaus Mayer
Keyword(s):  
Laser Ablation ◽  
Isotopic Analysis ◽  
Scrap Metal ◽  
Particle Analysis ◽  
Spatially Resolved ◽  
Icp Ms ◽  
Non Destructive

LA-MC-ICP-MS is a fast and quasi non-destructive technique to reveal possible U isotopic inhomogeneity in scrap metal samples, filling the gap between bulk isotopic analysis and particle analysis.

A new practical isobaric interference correction model for the in situ Hf isotopic analysis using laser ablation-multi-collector-ICP-mass spectrometry of zircons with high Yb/Hf ratios

2019 ◽  
Vol 34 (6) ◽  
pp. 1223-1232 ◽  
Author(s):  
Hai-Ou Gu ◽  
He Sun ◽  
Fangyue Wang ◽  
Can Ge ◽  
Taofa Zhou
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Isotopic Analysis ◽  
Correction Model ◽  
Isobaric Interference ◽  
Interference Correction ◽  
Icp Ms ◽  
Icp Mass Spectrometry

An isobaric interference correction model was proposed for the in situ Hf isotopic analysis of zircons with high Yb/Hf ratios using LA-MC-ICP-MS.

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.

Capabilities of laser ablation – ICP-TOF-MS coupling for isotopic analysis of individual uranium micrometric particles

2018 ◽  
Vol 33 (11) ◽  
pp. 1892-1902 ◽  
Author(s):  
Anne-Laure Ronzani ◽  
Fabien Pointurier ◽  
Martin Rittner ◽  
Olga Borovinskaya ◽  
Martin Tanner ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Time Of Flight ◽  
Isotopic Analysis ◽  
Ablation Time ◽  
Isotopic Compositions ◽  
Icp Ms ◽  
Tof Ms

Isotopic compositions of individual uranium micrometric particles are measured precisely by means of laser ablation – time of flight ICP-MS coupling.

A high performance method for the accurate and precise determination of silicon isotopic compositions in bulk silicate rock samples using laser ablation MC-ICP-MS

2020 ◽  
Vol 35 (9) ◽  
pp. 1887-1896
Author(s):  
Chenxi Zhang ◽  
He Zhao ◽  
Wen Zhang ◽  
Tao Luo ◽  
Ming Li ◽  
...  
Keyword(s):  
Laser Ablation ◽  
High Performance ◽  
Femtosecond Laser Ablation ◽  
Isotopic Analysis ◽  
Precise Determination ◽  
Silicate Rock ◽  
Analysis Method ◽  
Rock Samples ◽  
Icp Ms

This study presents the most efficient silicon isotopic analysis method for bulk silicate rock samples by both nanosecond and femtosecond laser ablation MC-ICP-MS.

scholarly journals Monitoring spatially resolved trace elements in polar bear hair using single spot laser ablation ICP-MS

2020 ◽  
Vol 119 ◽  
pp. 106822
Author(s):  
Thea Bechshoft ◽  
Yan Luo ◽  
Alyssa M. Bohart ◽  
Andrew E. Derocher ◽  
Evan S. Richardson ◽  
...  
Keyword(s):  
Trace Elements ◽  
Laser Ablation ◽  
Polar Bear ◽  
Single Spot ◽  
Spatially Resolved ◽  
Icp Ms
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