Atomic absorption spectroscopy

AAS is a widely used technique, to perform trace analysis of elements. The trace analysis has been done based on the absorption of light by the sample at a specific wavelength. When ultraviolet light passes through the sample, the atoms absorb the photons at the specific wavelength and reach a higher energy level. The detector collects the transmitted light from the sample and compares it with incident light. Thus, it is used to determine the qualitative elemental analysis of the samples. The absorption of light increases based on the concentration of the element in the sample.