| Acronym | Meaning |
| BSO | Brueckner Spin Orbitals |
| AOCS | American Oil Chemists' Society |
| LDI | Laser Desorption Ionization |
| O/E | Observed Number/expected Number Ratio = Relative Risk |
| SD-POE | Sigma-dependent Pi-orbital Electronegativity Model |
| MPE | Multiphoton Excitation |
| NRMRL | National Risk Management Research Laboratory |
| ASEC | Applied Solar Energy Corporation |
| ECCLS | European Committee For Clinical Laboratory Standards |
| LSM | Loop Sampling Mode |