Write the principle of atomic absorption spectroscopy 2 marks
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Atomic absorption spectroscopy (AAS) and atomic emission spectroscopy (AES) is a spectroanalytical procedure for the quantitative determination of chemical elements using the absorption of optical radiation (light) by free atoms in the gaseous state. Atomic absorption spectroscopy is based on absorption of light by free metallic ions.
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What is the principle of atomic absorption spectroscopy?
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The technique uses basically the principle that free atoms (gas) generated in an atomizer can absorb radiation at specific frequency.
Atomic-absorption spectroscopy quantifies the absorption of ground state atoms in the gaseous state .
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