Applications
Microanalysis Research Facility can provide services for wide-reaching applications:
Rapid EDS and WDS measurement of
major, minor and trace elements.
Compositional analysis of major, minor and trace elements
By chemically analysing individual phases (crystals or matrices), we can rapidly obtain high precision chemical compositions for a wide range of major, minor and trace elements (down to 50ppm) ranging from C to U appropriate for many provenance studies
The high spatial resolution of the electron beam makes the microprobe suitable for analysing both single phase materials (such as minerals) or multi-phase materials (such as ceramics or metal alloys).
BS compositional image and
element maps for Si and
Fe of an iron dendrite in slag.
(Click to enlarge image)
Compositional mapping of crystalline materials
X-ray mapping can be carried out on micro and macroscopic areas giving detailed information regarding the relative distribution of elements within any given field of view. This provides important spatial information about variations in the chemistry of minerals and crystalline materials.
This approach is a lso suitable for characterising surface treatments, such as plated metals, pigments, enamels or glazed ceramics, to identify the raw materials and production techniques used.
Compositional images.
(Click to enlarge image)
Microstructural analysis of inorganic materials
Using the SE and BS imaging systems in conjunction with rapid compositional measurements (both EDS and WDS) provides evidence of raw material use, decorative techniques and mineral deposition.
A bivariate plot of K2O vs. MgO in
archaeological glass
(Click to enlarge image)
Provenance of archaeological materials
The electron microprobe is ideal for analysing micro-samples from rare artefacts due to the combination of high precision compositional analysis, the high spacial resolution of the elctron beam and the high quality electron optics imaging system (SE and BS modes). This allows us to characterise the raw materials used in production.
Just take a look – and then come and see for yourself. We are more than happy to offer 'no obligation' demonstrations.