Laser-ablation system to obtain isotopic spatial distributions with histological mapping of tooth formation.
Southern Cross University BIOMICS (Advanced Bioisotope & Metallomic imaging facility).
Southern Cross University’s BIOMICS lab (GARG Geoarchaeology and Archaeometry Research Group) used a Laser-ablation system to obtain isotopic and trace elemental spatial distributions with histological mapping of tooth formation to enable novel studies and new understandings of human evolution.
Kenelec Scientific supplied a Laser Ablation (LA) system, NWR213 and ESL193 excimer both from ESL which compliments Southern Cross University BIOMICS’ Inductively Coupled Plasma Mass Spectrometer (ICPMS).
BIOMICS is composed of a Laser-ablation system NW213 and ESL193 excimer from ESL, with a large two volume ablation cell linked to a Quadrupole and Multicollector Inductively Coupled Plasma Mass Spectrometer (ICPMS and MC-ICPMS).
The main advantage of the LA-ICPMS is that it minimises the destruction or significant alteration of the original sample, unlike other elemental and isotopic analyses which is a major consideration when sampling archaeological material.
Samples are placed in the large ablation chamber, where the laser vaporises specific parts of the surface. A flow of He in the ablation chamber carries the elements towards the mass spectrometers where it mixes with a flow of Ar just before entering the plasma.
Because of the laser beam width, intensity and pattern can be changed easily; the instrument thus offers not only high precision measurements but also very targeted sampling and virtually non-destructive analyses.
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Products used in this project
The industry’s gold standard in 213nm solid state laser ablation. The ESL NWR213™ is an affordable, yet no compromise instrument suitable for a wide range of applications. A perfect complement to any ICP, ICP-MS noble gas or stable isotope mass spectrometer.
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