| Se | Selenium |
| Sec | Selenocysteine |
| SeMet | Selenomethionine |
| SeCys2 | Selenocystine |
| SeHoCys | Selenohomocysteine |
| SeMeCys | Se-methylselenocysteine |
| γ-Glu-MeSeCys | γ-glutamyl-Se-methylselenocysteine |
| AFS | Atomic fluorescence spectrometry |
| AAS | Atomic absorption spectroscopy |
| ICP-MS | Inductively coupled plasma mass spectrometry |
| HPLC-ICP-MS | High-performance liquid chromatography-inductively coupled plasma mass spectrometry |
| ESI-MS | Electrospray Ionization Mass Spectrometry |
| HG | Hydride generation |