Metrohm AG

- Coulometers: Titrators for Low Water Content Analysis



Coulometric Karl Fischer titration is the ideal method to determine low moisture and water contents in samples (0.001 to 1% water content). Our range of coulometers can cover any requirements and can be combined with the KF oven method for difficult samples.

  • Determination of trace-level water contents in the range of 0.001 to 1%
  • Coulometers for all requirements: stand-alone and computer-controlled options available
  • Oven method options available for difficult samples
  • Diaphragm and diaphragmless generator electrodes available
  • 21 CFR Part 11-compliant instruments available


For difficult samples, e.g., solid samples or samples that do not readily dissolve, you may apply the KF oven method. In this method, the sample is heated in an oven until the water is released, and the water vapor is transferred to the titration vessel for measurement.

We offer both manual ovens and automated sample changers with integrated ovens for increased sample throughput.

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