| Acronym | Meaning |
| NRMS | Neutralization-reionization Mass Spectrometry |
| EIE | Easily Ionized Element |
| FID | Flame Ionization Detector (gas Chromatography) |
| AAO | Acetaldehyde Oxime |
| JIPID | Japanese International Protein Information Databank |
| FILDA | Fluorescence Intensity And Lifetime Distribution Analysis |
| NARL | National Air And Radiation Laboratory |
| GSR | Gunshot Residue |
| IDIMS | Interactive Digital Image Manipulation System |
| POPW | Partially Orthogonalized Plane Wave |