AAS (Atomic Absorption Spectroscopy)

Atomic Absorption Spectroscopy (AAS) is an analytical technique used to determine the concentration of specific metals in a sample, such as water or soil. It works by vaporizing the sample and shining a light through it at specific wavelengths. When metal atoms in the sample absorb this light, they enter an excited state. By measuring how much light is absorbed, scientists can calculate the concentration of the metal present. AAS is widely used in environmental testing, food safety, and clinical analysis due to its sensitivity and ability to identify trace elements.