| GCO | Gas chromatography olfactometry |
|---|---|
| GC-NICI-MS | gas chromatography-negative ion chemical ionisation mass spectrometry |
| GC-C-IRMS | Gas chromatography-combustion-isotope ratio mass spectrometry |
| GC-FID | Gas chromatography-flame ionization detection |
| GC/MS | Gas chromatography/mass spectrometric |