nearinfraredteknik
Nearinfraredteknik refers to techniques that employ near-infrared light to analyze or image materials. The near-infrared region spans roughly 780 to 2500 nanometers and lies between visible and mid-infrared radiation. In this region, many organic molecules exhibit overtone and combination vibrations, notably involving C-H, N-H and O-H bonds. The resulting spectra are broad and overlapping, requiring multivariate calibration and chemometric methods to extract quantitative or qualitative information.
Two main forms are used: near-infrared spectroscopy (NIRS), which measures spectra for bulk samples and can be
Applications are broad: quality control and process monitoring in food and feed, agriculture (moisture, protein, sugar
Limitations include strong scattering in solids, dependence on calibration to specific materials, and limited depth penetration