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When a sample is aspirated into the flame in atomic absorption spectroscopy, the solvent evaporates, leaving the atoms in the sample in a gaseous state. These atoms are then heated in the flame, causing them to reach an excited state. As they return to their ground state, they emit light at characteristic wavelengths that are detected by the instrument to determine the concentration of the element in the sample.

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Q: What happen when a sample is aspirated into the flame?
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