absorbtiometria

Absorptiometria is a technique used to measure the absorption of light by a substance, typically in the ultraviolet-visible (UV-Vis) or infrared (IR) regions of the electromagnetic spectrum. This method is widely employed in analytical chemistry, biochemistry, and materials science to determine the concentration of a solute in a solution, identify compounds, and study the properties of materials.

In UV-Vis absorptiometria, a beam of light is passed through a sample, and the amount of light absorbed at specific wavelengths is measured. The absorption is proportional to the concentration of the absorbing species, allowing for quantitative analysis. This technique is particularly useful for analyzing solutions containing colored compounds or those that absorb UV light.

Infrared absorptiometria, on the other hand, involves measuring the absorption of infrared light by a sample. This method is valuable for identifying functional groups in organic compounds and studying the vibrational modes of molecules. Both UV-Vis and IR absorptiometria are non-destructive and can provide rapid, accurate results, making them indispensable tools in various scientific and industrial applications.