| ATR | Attenuated Total Reflectance |
|---|---|
| ATR-FTIR | Attenuated Total Reflectance Fourier-Transform Infrared |
| ATR | Attenuated Total Reflection |
| ATR-FTIR | Attenuated total reflection Fourier transform infrared |
| ATR FT-IR | Attenuated total reflection Fourier transform infrared spectroscopy |