Elemental analysis with x-ray fluorescence (XRF)
An XRF instrument employs X-ray radiation to identify chemical elements within an object or sample.
In the field of archaeology, XRF is utilized, for instance, on soil samples to identify activity areas or to analyse the elemental composition of archaeological artefacts made of metal, stone or ceramics. This instrument is particularly suitable for soil samples and for objects that are too large for analysis with a scanning electron microscope. The method is non-destructive.
At AFL, we have a portable XRF device that can be used to perform analyses directly in the field or within a museum setting.
When collecting soil samples for elemental analysis, a sample quantity of approximately 1-1.5 decilitres is appropriate. Use clean tools and store the samples directly in plastic bags. Avoid wrapping the samples in aluminium foil as it may interfere with the analysis. Additionally, include reference samples from an area outside the investigation site.
Last updated: March 6, 2024
Source: Department of Archaeology and Classical Studies