UV VIS NIR Spectrophotometer

A spectrophotometer measures a material’s reflection or transmission by measuring light intensity/absorbency at a specific wavelength. UV-VIS and NIR spectrophotometers measure in those particular spectrums, with wavelength ranges that can span 135–3300 nm. Spectrophotometry is a top quantitative analysis method in fields such as chemistry, materials science, semiconductors, and forensic examination, and in clinical applications. When comparing UV-VIS/NIR spectrophotometers, take note of analysis speed, detection wavelength range, range of absorption, and stray light performance, especially with UV-VIS models. Although both single-beam and double-beam instruments are available, the double-beam type measures the sample beam and reference beam simultaneously, upping ease of use, reproducibility, and light source and detector stability. Sensitivity in UV-VIS/NIR spectrophotometers can be enhanced through the use of multiple detectors.