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Failed to load latest commit information. Update Jun 15, 2016
chmo.obo updates to "filtration" and related classes Jul 27, 2016
chmo.owl Added 'absorption' for Matthias Brochhausen Feb 12, 2015


The Chemical Methods Ontology contains more than 3000 classes and describes methods used to:

  • collect data in chemical experiments, such as mass spectrometry and electron microscopy
  • prepare and separate material for further analysis, such as sample ionisation, chromatography, and electrophoresis
  • synthesise materials, such as epitaxy and continuous vapour deposition It also describes the instruments used in these experiments, such as mass spectrometers and chromatography columns and their outputs.

The OWL file is generated from the OBO file, but both can be edited in Protege (

You can browse the ontology here:

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