Graphite Furnace Atomic Absorption

Graphite Furnace Atomic Absorption (GFAA) is an analytical technique used to measure small amounts of metals and elements in a sample. It works by vaporizing the sample inside a graphite furnace, turning the atoms into a gas. A light beam with a specific wavelength passes through this vapor; if the atoms are present, they absorb some of the light. By measuring how much light is absorbed, the instrument determines the concentration of the element in the sample with high sensitivity and precision. GFAA is commonly used in environmental testing, clinical analysis, and materials science.