absorptiospektriksi

Absorptiospektriksi, also known as absorption spectroscopy, is a technique used to identify and quantify the presence of a particular substance in a sample by measuring the absorption of electromagnetic radiation, such as light, over a specific range of wavelengths. This method is based on the principle that different substances absorb light at different wavelengths, creating a unique absorption spectrum for each substance.

The process involves passing a beam of light through a sample and measuring the intensity of the light before and after it passes through the sample. The difference in intensity is used to calculate the absorption of the sample at each wavelength. The resulting spectrum is a plot of absorption versus wavelength, which can be used to identify and quantify the substances present in the sample.

Absorption spectroscopy is widely used in various fields, including chemistry, biology, and physics, for tasks such as identifying unknown substances, determining the concentration of a substance in a solution, and studying the structure and properties of molecules. Common types of absorption spectroscopy include ultraviolet-visible (UV-Vis) spectroscopy, infrared (IR) spectroscopy, and atomic absorption spectroscopy (AAS). Each type utilizes different regions of the electromagnetic spectrum to provide specific information about the sample.