Graphite Furnace Atomic Absorption Spectroscopy

Graphite Furnace Atomic Absorption Spectroscopy (GFAAS) is a technique used to measure trace amounts of metals in samples. A small sample is placed into a graphite furnace, which heats up rapidly, vaporizing the metal atoms. A light beam with a specific wavelength passes through the vapor; if metal atoms are present, they absorb some of this light. The instrument measures how much light is absorbed, which correlates to the metal’s concentration in the sample. GFAAS offers high sensitivity and precision, making it ideal for detecting very low metal levels in various substances.