Atomic Absorption Spectroscopy (AAS) helps characterize various metals in all kinds of materials
and solutions. Analyzing about 30 chemical elements is possible using this method. AAS is used for determining
the concentration of chemical elements like Au, Ag, Al, Mn, Sn, Zn, Cu … The accuracy of this method is in the range of ppm (part per million).
AAS is based on processing the absorption of optical radiation (usually UV-VIS) by electrically
neutral atoms in the gaseous state. For the purpose of analyzing atomic absorption using AAS equipment, a flame atomizer
vaporizes the chemical element to be analyzed (dissolved in an inorganic acid), and subsequently the element dissociates into atoms.
For each desired element, a special Hallow cathode lamp (radiation line source) is used to provide a suitable radiation, which will then
be absorbed by the element's atoms.
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