| Acronym | Meaning |
| ASB | Ambient Stds. Branch [of The US EPA] |
| OLGA | On-Line Gas Chemistry Apparatus |
| RRT | Relative Retention Time |
| PCDW | Projectile Continuum Distorted Wave (in Atom Collision Calcns.) |
| MVC | Mechanical Vapor Compression |
| CBEDP | Convergent-beam Electron-diffraction Pattern |
| SNO | Spin Natural Orbital |
| HRFS | High-resolution Fluorescence Spectroscopy |
| HG-AAS | Hydride Generation-at. Absorption Spectroscopy |
| CMB | Core Mantle Boundary |