To complement our existing services, ALS now offers PhotonAssay analysis for gold. This method is most suitable for coarse gold mineralisation where analysis of a large sample aliquot is advantageous.
PhotonAssay analysis works by bombarding samples with high-energy X-Rays which excite atomic nuclei that produce gamma rays at signature energies, allowing for gold detection. Typically, samples are crushed and ~500 grams of material used for analysis, however finely pulverised samples may also be assayed. Analysis is non-destructive, not requiring sample decomposition therefore the material may be retained for other uses. Prior to selecting PhotonAssay as a method, it is advisable to understand whether it is appropriate for your project as low levels of U and/or Th, and moderate amounts of Ba interfere with gold detection.
Please contact your local Client Services group for information on whether PhotonAssay is suitable for your project.
|Au-PA01||Au||0.03-350ppm||Au by PhotonAssay Analysis on
500g of crushed sample