can use ionization method
                    3
                    triples
                
                
                    GPTKB property
                
            Random triples
| Subject | Object | 
|---|---|
| gptkb:liquid_chromatography-mass_spectrometry | electrospray ionization | 
| gptkb:liquid_chromatography-mass_spectrometry | atmospheric pressure chemical ionization | 
| gptkb:liquid_chromatography-mass_spectrometry | matrix-assisted laser desorption/ionization |