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NIR stands for Near InfraRed spectroscopy, it refers to the analytical technique of using near-infrared radiation to analyze samples for compositional traits.
Instrumentation for near-IR (NIR) spectroscopy is similar to instruments for the UV-visible and mid-IR ranges. There is a source, a detector, and a dispersive element (such as a prism, or, more commonly, a diffraction grating) to allow the intensity at different wavelengths to be recorded.
Near-infrared (NIR) spectroscopy is concerned with absorption, emission, reflection, and diffuse-reflection of light in the region of 800–2500 nm (12,500–4000 cm − 1).
Feb 27, 2024 · Near-infrared spectroscopy, known as NIR spectroscopy or NIRS, is a long-established analytical technique. For over 30 years, it has proven to be a fast and reliable method …
Apr 4, 2024 · Near infrared (NIR) spectroscopy is a spectroscopic technique used in various industries. Here, we explain its importance in the pharmaceutical, agriculture, and food and beverage analysis industries.
Jan 3, 2023 · The fundamental principle behind NIR spectroscopy is based on the fact that different chemical compounds absorb and scatter light in the NIR region in a characteristic manner.
NIR (Near-Infrared) and SWIR (Short-Wave Infrared) spectroscopy are powerful analytical techniques used in a wide range of industries, including pharmaceuticals, agriculture, food and beverages, environmental and materials science.
Jun 21, 2025 · Explore the principles of near-infrared spectroscopy, a non-destructive method that measures how light reveals the internal properties of biological and…
NIR is an abbreviation for Near Infrared Spectroscopy, and it refers to the analytical technique of analysing materials for compositional or distinctive traits using near-infrared light.
At the beginning of this chapter we divided infrared radiation into three areas: the near-IR, the mid-IR, and the far-IR. The mid-IR, which runs from 4000 cm –1 to 670 cm –1 (2.5 µm to 15 µm) is the most analytical useful region and was the subject of the previous two sections.
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