| LIBS | Laser-Induced Breakdown Spectroscopy |
| ICCD | Intensified Charge-Coupled Device |
| HSI | Hyperspectral Imaging |
| IR | Infrared |
| MIRS | Mid Infrared Spectroscopy |
| VNIR | Visible Near-Infrared |
| SWIR | Short Wave Infrared |
| FTIR | Fourier Transform Infrared |
| QCL | Quantum Cascade Laser |
| PLSR | Partial Least Squares Regression |
| LV | Latent Variable |
| CV | Coefficient of Variation |
| R2 | Coefficient of Determination |
| RMSEC | Root Mean Square Error of Calibration |
| RMSECV | Root Mean Square Error of Cross-Validation |
| RMSEP | Root Mean Square Error of Prediction |
| RPD | Ratio of Performance to Deviation |
| SD | Standard deviation |
| SNV | Standard Normal Variate |
| FOD | Fractional Order Derivative |
| VIP | Variable Importance in Projection |
| ANOVA | Analysis Of VAriance |