| 8-nitroG | 8-Nitroguanine |
| LC-MS/MS | liquid chromatography-tandem mass spectrometry |
| LOD | limit of detection |
| LOQ | imit of quantification |
| MTNG | 6-methoxy-2-naphthyl glyoxal hydrate |
| MRM | multiple reaction monitoring |
| ONOO− | peroxynitrite |
| SPE | solid-phase extraction |
| UPLC-HRMS | ultra-performance liquid chromatography-high resolution mass spectrometry |