| Acronym | Meaning |
| FWPCA | Federal Water Pollution Control Administration |
| DSID | Direct Sample Insertion Device |
| PCN | Polychlorinated Naphthalene |
| GPUCHF | Geometric Perturbed Uncoupled Hartree-Fock Method |
| MCCHF | Multiconfiguration Coupled Hartree-Fock |
| NPCVD | Normal Pressure Chemical Vapor Deposition |
| DZDP | (double Zeta)-diffuse-polarization (basis Set In Configuration-mixing Mo Calcns. On Mols.) |
| DPT | Degenerate Perturbation Theory |
| CDRE | Convolution Difference Resolution Enhancement |
| TVC | Thermal Vapor Compression |