| Acronym | Meaning |
| CHELEQ | Charge Electronegativity Equalization |
| PCI | Positive-ion Chemical Ionization (mass Spectrometry) |
| BACT | Best Available Control Technology |
| SASA | Solvent-accessible Surface Area |
| GCC | Global Climate Coalition |
| WWPLOT | Whisker Wall Porous Layer Open Tubular Column |
| SIMBA | Selective Inverse Multiple Bond Analysis |
| HSAB | Hard And Soft Acids And Bases |
| FGH | Fourier-grid Hamiltonian |
| FTICRMS | Fourier Transform Ion Cyclotron Resonance Mass Spectrometry |