Our experienced team is always available to assist you with your global inspection and analysis requirements.

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Chemical Analysis

Assay Services

Alfred H Knight have provided assay services for over 140 years. Through our global network we offer a range of instrumental and classical techniques providing fast and accurate assay services for:

  • Party/umpire analysis
  • Outsourcing analysis
  • QA/QC analytical testing


  • CIC (combustion ion chromatography)
  • ICP-OES (inductively coupled plasma optical emission spectroscopy)
  • ICP-MS (inductively coupled plasma mass spectrometry)
  • Spark OES (optical emission spectroscopy)
  • FAAS (flame atomic absorption spectroscopy)
  • WDXRF (wavelength-dispersive X-ray fluorescence spectrometry)
  • EDXRF (energy dispersive X-ray fluorescence spectrometry)
  • Various automated titration systems
  • Modern Fire Assay Systems. One of the most important components of our laboratories is our modern fire assay facilities, incorporating automated mixing and multi-pour technology, which is used to analyse precious metals in a variety of commodities.

Find out more

Contact us for more information or a quotation for our assay services