| Acronym | Meaning |
| TDLAS | Tunable Diode Laser Absorption Spectroscopy |
| MIKES | Mass-analyzed Ion-kinetic Energy Spectrometry |
| SMO | Sample Management Office (US EPA) |
| ESI | Electrospray Ionization |
| SCTA | Sample Controlled Thermal Analysis |
| IAEG | International Association Of Engineering Geology |
| EFS | Event-free Survival |
| IISCI | Initial Ionic State Comfiguration Interaction |
| STS | Scanning Tunnelling Spectroscopy |
| FOQELS | Fiber Optic Quasi Elastic Light Scattering |