 Near-infrared spectroscopy

Near-infrared spectroscopy (NIRS) is an analytical technique used to obtain information about the chemical composition and physical properties of a sample by analyzing the near-infrared region of the electromagnetic spectrum, which typically ranges from about 750 nm to 2500 nm. ### Key Features of NIRS: 1. **Principle of Operation**: NIRS involves the absorption of near-infrared light by molecular vibrations.