| Acronym | Meaning |
| PPT | Parts Per Trillion |
| WQS | Water Quality Standard |
| IEET | Intramolecular Electronic Energy Transfer |
| OSTLS | Optical Saturation Thermal Lens Spectrometry |
| SET | Single Electron Tunneling |
| ICSH | Interstitial Cell-stimulating Hormone |
| DEP | Department Of Environmental Protection |
| IUPAC | International Union Of Pure And Applied Chemistry |
| ECS-P | Energy-corrected Sudden-polynomial (scaling Law) |
| SRP | Signal Recognition Particle |