GERDA – Geochemical Research and Documentation Assistant – is an automated table sampler for portable and handheld analytical instruments such as pXRF, NIR spectrometers, magnetometers, etc.

The GERDA can be used for:

  • assaying drill core right in core boxes;
  • assaying stream sediment / soil samples in field bags;
  • assaying RAB, RC drilling chip samples;
  • determination of gold mineralization in crushed rock/drill core samples utilising NEFFA method;
  • assaying any 2D flat objects like paintings and etc..
  • remote control via VPN.
Drill core assay
Soil samples at GERDA with Olympus Vanta

GERDA with Bruker Tracer
GERDA with SciAps X550
GERDA + NIR spectrometer Spectral Evolution oreXpress

The GERDA includes:

The GERDA can be equipped with:


  • developed and designed the GERDA;
  • produces and sells GERDA units;
  • installs units on customer’s site;
  • trains customer’s personnel;
  • provides full technical support and warranty.

The GERDA has been successfully integrated into Information Geological Exploration system AGR 4.0

The GERDA in Olympus’ official BLOG

For more information, quotation and offer terms please send us a request by filling out the contact form on the Contact Us page.

The GERDA units successfully work for the following customers :


Available models are compatible with either Olympus Vanta or Thermo Fischer Niton pXRF’s.

Many other manually operated pXRF test stand products exist, however, they all have the same basic design flaws, and the same operational limitations to productivity when users need to accomplish hundreds (or even thousands) of assay tests.

  • The pXRF is docked in underneath the test rig.
  • The sample cups then must be inserted upside-down so that the material in the cup doesn’t fall out.
  • The test rig can only load one sample cup at a time.

With Wiltec Solutions’ Easy Sampler, these operational limitations have now been solved