Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. analysis and testing techniques
6. chromatography
7. gas chromatography

Additional parents:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques
4. processes and techniques by specific type
5. analysis and testing techniques
6. mass spectrometry

Narrower term/s

• pyrolysis-gas chromatography-mass spectrometry

Anotations

Scope note:

Gas chromatography–mass spectrometry (GC-MS) uses the techniques of gas- chromatography and mass spectrometry in tandem to identify substances in complex mixtures within a test sample. It is a standard tool of forensics. In conservation, GC-MS is employed to determine the presence and type of organic compounds in paintings and other artifacts.