Flame Emission Spectroscopy(FES)/Flame photometry|principle|instrumentation|Applications

Flame emission spectroscopy ( FES)| principle | instrumentation | Applications
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Atomic emission spectroscopy (AES) is a method of chemical analysis that uses the intensity of light emitted from a flame, plasma, arc or spark at a particular wavelength to determine the quantity of an element in a sample. The wavelength of the atomic spectral line in the emission spectrum gives the identity of the element while the intensity of the emitted light is proportional to the number of atoms of the element.gcreate free atoms. The thermal energy also excites the atoms into excited electronic states that subsequently emit light when they return to the ground electronic state. Each element emits light at a characteristic wavelength, which is dispersed by a grating or prism and detected in the spectrometer A frequent application of the emission measurement with the flame is the regulation of alkali metals for pharmaceutical analytics. (Source: wikipedia page)

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