Laser Ablation Analysis: LA-ICP-MS & LIBS

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Rapid screening of major to trace elements in spatially resolved mode is often necessary.  The identification of interfaces, defects, segregation pockets, fractures, interstitial fillings are a few examples.  Be it regarding state-of-the-art or energy materials, bio-compatible matrices, or forensic micro-samples, our decennial expertise offers full quality and statitical robustness.

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Simultaneous LA-ICP-MS and LIBS in one single setup.
Spatially Resolved Materials Stoichiometry

Laser ablation microanalysis permits to quantifya material rapidly and without much preparation. It offers spatially-resolved capability with large dynamic range while combined with Inductively Coupled Plasma - Mass Spectrometry (ICP-MS). In Laser ablation a 10-500 micron sampling is performed, and the laser-induced aerosol is characterized online, by means ICP-MS or optical emission spectrometry (OES) also known as LIBS. Both LA-ICP-MS and LIBS are collected simultaneously for complete elemental coverage across the periodic table.

Additionally, we have access to Scanning Electron Microscopy for imaging of nanostructured materials. The semi-quantitative analysis is complemented with the use of X-ray Fluorescence Spectrometry for Mappings. The technique is run is so-called wavelength-dispersive mode to achieve excellent resolution and detection power.
Adrian Wichser

Adrian Wichser

Telefon: +41 58 765 4647

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References

Bleiner, D.; Juha, L.; Qu, D. Soft X-ray laser ablation for nano-scale chemical mapping microanalysis. J. Anal. At. Spectrom. 2020, 35 (6), 1051-1070. https://doi.org/10.1039/C9JA00366E
Detailed Record
Walaszek, D.; Senn, M.; Wichser, A.; Faller, M.; Wagner, B.; Bulska, E.; Ulrich, A. Minimally-invasive Laser Ablation Inductively Coupled Plasma Mass Spectrometry analysis of model ancient copper alloys. Spectrochim. Acta B 2014, 99, 115-120. https://doi.org/10.1016/j.sab.2014.06.023
Detailed Record
Walaszek, D.; Senn, M.; Faller, M.; Philippe, L.; Wagner, B.; Bulska, E.; Ulrich, A. Metallurgical and chemical characterization of copper alloy reference materials within laser ablation inductively coupled plasma mass spectrometry: method development for minimallyinvasive analysis of ancient bronze objects. Spectrochim. Acta B 2013, 79-80, 17-30. https://doi.org/10.1016/j.sab.2012.11.001
Detailed Record