NIRspektroszkópia

NIRspektroskopia is a spectroscopic technique that uses the near-infrared region of the electromagnetic spectrum, typically from 700 to 2500 nanometers. This region is sensitive to the vibrational overtones and combinations of molecules containing hydrogen, carbon, nitrogen, and oxygen atoms. When near-infrared light interacts with a sample, some of the light is absorbed at specific wavelengths, corresponding to the characteristic vibrations of the molecular bonds. The transmitted or reflected light is then detected, and the resulting spectrum provides information about the chemical composition and physical properties of the sample.

The primary advantage of NIRspektroskopia is its speed and non-destructive nature. Samples can be analyzed directly, often without any preparation, making it suitable for online process monitoring and quality control. The instrumentation is relatively simple and robust, and the technique can penetrate through sample containers, allowing for analysis through glass or plastic. NIRspektroskopia is widely used across various industries, including food and agriculture for analyzing moisture, protein, and fat content; pharmaceuticals for identifying raw materials and finished products; and petrochemicals for monitoring product quality. It can also be applied to polymers, textiles, and even medical diagnostics. The interpretation of NIR spectra often involves chemometric methods, which use statistical algorithms to correlate spectral data with known properties of the sample.