Performance characteristics of ultra-violet femtosecond laser ablation inductively coupled plasma mass spectrometry at ∼265 and ∼200 nm

Matrix-independent Fe isotope ratio determination in silicates using UV femtosecond laser ablation

“…Femtosecond LA-ICP-MS using non-matrix-matched calibration has been successfully applied to the analysis of element ratios, i.e. Zn/Cu, Pb/U and U/Th (Bian et al, 2005;2006;González et al, 2004;Horn and von Blanckenburg, 2007;Koch et al, 2006;Mozna et al, 2006;Poitrasson et al, 2003) and of isotope ratios of heavy stable isotope systems, i.e. Cu, Fe and Si (Chmeleff et al, 2008;Horn and von Blanckenburg, 2007;Horn et al, 2006;Ikehata et al, 2008;Steinhoefel et al, 2009).…”

Evaluation of the Analytical Capability of NIR Femtosecond Laser Ablation-Inductively Coupled Plasma Mass Spectrometry

“…Faced with this problem, a better understanding of the isotopic fractionation using more precise isotopic ratio measurements obtained by UV-fs-laser ablation would provide key information. 24,39,49,53 Nevertheless, the result is encouraging, and leads us to believe that the in-situ isotopic analysis of glass, silicate and opaque minerals is a real possibility.…”

“…4(b) and (e)). In order to discuss the difference in the level of elemental fractionation we applied a newly defined fractionation index based on the definitions by Horn et al 58 and Koch et al 39 The fractionation index (f Pb/U ) was defined by …”

“…15,34 The introduction of survived sample particles can be a source of signal spikes, 3,35 the elemental fractionation possibly due to preferential evaporation of the volatile elementals or due to re-deposition of the ablated materials onto the sample surface. [36][37][38][39][40] This is particularly serious when metallic or semi-conductor materials, such as Cu, Zn, Fe or Si-wafer are analyzed with the conventional laser ablation technique. 3,[41][42][43][44] For brass and glass materials, it is recognized that a total elemental composition of all transported particles represents the bulk composition of the solid sample, whereas individual particle sizes consist of different elemental composition.…”

Development of an On-line Low Gas Pressure Cell for Laser Ablation-ICP-Mass Spectrometry

“…The release of large-size particles can be a main source of signal spikes obtained in the ICP-MS. 23 A new approach to minimize the production of large-size particles is the application of femto-second (fs) lasers. [31][32][33][34] Particle size-related elemental fractionation can be significantly An on-line low gas pressure cell device has been developed for elemental analysis using laser ablation-ICP-mass spectrometry (LA-ICPMS). Ambient gas in the sample cell was evacuated by a constant-flow diaphragm pump, and the pressure of the sample cell was controlled by changing the flow rate of He-inlet gas.…”