Analytical Capabilities

New Analytical Laboratory in full operation 

We are proud to announce that our new Analytical Laboratory at Brimsdown, Enfield, was officially opened by the Mayor of London, Boris Johnson on the 8th of December 2015. Please click on the image on the right to watch the video of the Opening ceremony. .

This new valuable analytical asset provides Johnson Matthey assay services with a number of competitive advantages, including the following capabilities:

  • fire assay for trace – 5% level pgms; nickel sulphite collection, lead collection, cupellation;
  • specific method to assay autocatalyst material;
  • wet chemical precipitation for mid-grade pgms;
  • direct dissolve for high-grade pgms;
  • analysis by XRF for high-grade >75% platinum alloys; X-ray fluorescence;
  • real time data available on samples and their progress to accurately predict ETA for for customers' sample assay resuts.

In addition, there are other analytical techniques available:

  • Induction Coupled Plasma (ICP);
  • Atomic fluorescence;
  • Potentiometric titration;
  • Carbon/sulphur analysis;
  • Thermo-gravimetric analysis (TGA).

precise precious metal analysis

Our advanced sampling methods and experienced analytical chemists ensure that your samples are assayed with high accuracy. We participate in a unique Round Robin Analysis Programme, where independent laboratories analyse controlled samples. 

We study the total matrix of your material by evaluating both precious metal and non-precious metal content. This analysis allows us to determine the best processing route for your material. As a result, we give you a quote you can rely on.

What do we assay for?

Precious Metals - Au, Ag, Pt, Pd, Ir, Rh, Ru.

Base Metals - Cu, Ni, Pb, Fe, Se, Te, C, S, etc.  

Other elements which may cause problems in our process.



Johnson Matthey
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Yangzi River Chemical Industry Park
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