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Atomic Absorption Spectrophotometry (AAS) and Atomic Emission Spectrometry (AES) are two fundamental techniques used in analytical spectroscopy to determine elemental concentrations. Both rely on the interaction of atoms with electromagnetic radiation but differ in their approach and detection principles. In Atomic Absorption Spectrophotometry, the basic principle involves the absorption of light by free atoms in the ground state. A sample is usually atomized using a flame or a graphite _________ ________ ___ _________ ______ ______ ________ ________ _______ ______ __________ _________.
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