| Acronym | Meaning |
| APCAR | Angular Correlation Of Positron Annihilation Radiation |
| PICI | Positive-ion Chemical Ionization |
| UNIFAC | Universal Quasichem. Functional Group Activity Coeffs. |
| PNA | Peanut Agglutinin |
| SEAM | Superfund Exposure Assessment Manual |
| LOQ | Limit Of Quantitation |
| ARPA | Advanced Research Projects Agency |
| LLD | Lower Limit Of Detection |
| HBAR | High-overtone Bulk Acoustic Resonator |
| CMB | Chemical Mass Balance |