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Laser Ablation Split Stream (“LASS”) between High Sensitivity SC- and MC-ICP-MS Instruments

Laser ablation split-stream (“LASS”) is a technique that allows for the simultaneous analyses of different geochemical systems in mineral samples using two or more mass spectrometers. Whereas, conventionally U-Pb and Hf are analyzed in separate sessions from proximal or superimposed LA spots (40–50 µm diameter is typically required for the Hf). LASS allows geochemical information collected by different instruments to be determined from exactly the same ablation volume, avoiding the assumption that serial analyses of neighbouring sites are not affected by heterogeneity (chemical zonation). Further, sample throughput can be increased.

Technique: Isotope Ratio MS Resource Type: Application Note
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