| AAS | Atomic Absorption Spectroscopy |
| ATR | Attenuated Total Reflection |
| DRIFT | Diffuse Reflectance InfraRed Fourier Transform spectroscopy |
| 2D-IR | Two-dimensional InfraRed spectroscopy |
| FTIR | Fourier Transform InfraRed spectroscopy |
| HRI | High Refractive Index |
| ICP-MS | Inductively Coupled Plasma Mass Spectroscopy |
| ICP-OES | Inductively Coupled Plasma Optical Emission Spectroscopy |
| IR | InfraRed |
| IRS | Internal Reflection Spectroscopy |
| MIR | Mid-InfraRed |
| S/N ratio | Signal-to-Noise ratio |
| SOM | Soil Organic Matter |
| SR-FTIR | Synchrotron Radiation-Based Infrared spectromicroscopy |
| XRF | X-Ray Fluorescence spectroscopy |
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