| Acronym | Meaning |
| R-CNDO/1X | Relativistic Complete Neglect Of Differential Overlap (method) |
| GFAA | Graphite Furnace Atomic Absorption |
| DMMP | Dimethyl Methylphosphonate |
| BALP | Bone Alkaline Phosphatase |
| PDVSA | Petroleos De Venezuela |
| ACRE | Automatic Climatological Recording Equipment |
| ESID | Electron Stimulated Ion Desorption |
| INEL | Idaho National Engineering Lab. |
| PBCIMS | Particle Beam Chem. Ionization Mass Spectrometry |
| BRIM | Bladder Reaction Injection Molding |