What's UV? Principle of UV visible spectrometer?

Question

Accepted Answer

UV stands for ultraviolet. UV-Vis spectrometer measures the absorption of light in the UV and visible region.

UV is a type of electromagnetic radiation with a wavelength shorter than visible light.
UV-Vis spectrometer measures the amount of light absorbed by a sample in the UV and visible region.
The principle of UV-Vis spectrometer is based on Beer-Lambert law which states that the absorbance of a sample is directly proportional to its concentration.
UV-Vis spectrometer is widely used in analytical chemistry for quantitative analysis of various compounds such as proteins, nucleic acids, and drugs.
UV-Vis spectrometer is also used in the pharmaceutical industry for quality control of drugs and in environmental monitoring for detecting pollutants in water and air.

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