Capabilities of Automated LA-ICP-TOFMS Imaging of Geological Samples
- Neff, Christoph
- Keresztes Schmidt, Peter
- Garofalo, Paolo S.
- Schwarz, Gunnar
- Günther, Detlef
DOIAbstract
Element imaging aims to provide quantitative data on multi-element distributions from major to trace elements with high lateral resolution. Here, we describe a control system for laser ablation inductively coupled plasma time-of-flight mass spectrometry (LA-ICP-TOFMS) imaging with complex integration of translational stage, laser, and mass spectrometer data acquisition which was tested on glass and mineral samples. In particular, besides single pulse imaging at a laser repetition rate of 100 Hz using a 5 μm laser spot size, a hole drilling imaging approach provided higher pixel sensitivity and lower limits of detection (<1 mg kg−1 for most heavy elements) while maintaining the same lateral resolution. An optional surface cleaning pulse can ...
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