absorptiospektrinsä

Absorptionsspektrinsä refers to the absorption spectrum of a substance. An absorption spectrum is a plot showing the amount of light absorbed by a sample at different wavelengths. When electromagnetic radiation, such as visible light, ultraviolet light, or infrared light, passes through a substance, certain wavelengths are absorbed by the material's atoms or molecules. This absorption occurs when the energy of the photons precisely matches the energy difference between electron orbitals or vibrational states within the substance. The remaining wavelengths are transmitted or reflected.

The resulting pattern of absorbed wavelengths is unique to each substance, acting like a fingerprint. By analyzing an absorption spectrum, scientists can identify unknown substances, determine the concentration of a known substance, or study the electronic and vibrational properties of materials. The wavelengths that are absorbed appear as dark lines or bands in the spectrum, while the transmitted wavelengths are seen as bright lines or a continuous spectrum. Spectrophotometry is the technique used to measure and record these spectra, providing valuable data across various scientific disciplines including chemistry, physics, astronomy, and biology.