What Non-Destructive NIR Testing Means in Practice
Near-infrared spectroscopy works by directing NIR light at a sample and measuring the light that is absorbed, reflected, or transmitted. The resulting spectrum provides information about molecular features, especially bonds such as C-H, O-H, N-H, and S-H.
Because the technique is optical, it usually does not require reagents or destructive sample preparation. This makes it useful for rapid checks of powders, grains, polymers, pharmaceuticals, food ingredients, minerals, and other materials where preserving the sample is important.
However, non-destructive does not always mean no preparation. Some samples may still need to be mixed, ground, presented in a suitable container, or measured under controlled conditions to achieve reliable results. The suitability of NIR depends on the material, required measurement, calibration model, and sample presentation.
Considering NIR for Non-Destructive Testing
For more detail on the method, review PAS’s overview of Near Infrared Spectroscopy technology. To compare suitable instruments, explore PAS’s NIR analysers through Portable Analytical Solutions, or contact our team to discuss your sample type and measurement requirements.
Meta description: Learn whether NIR analysis is non-destructive, how near-infrared testing preserves samples, and when sample preparation may still be required.