flame emission spectroscopy

chemistry

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June 26, 2026

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Flame emission spectroscopy is a spectrochemical analysis method that uses a flame as the energy source to excite atoms. When these excited atoms return to lower energy states, they emit light of characteristic frequencies. These frequencies are then separated and measured to identify and quantify the elemental composition of a substance.1

This technique is highly sensitive, capable of detecting elements present in very small amounts, and can analyze multiple elements simultaneously, often eliminating the need for chemical separations. The intensity of the emitted light is proportional to the concentration of the element, allowing for quantitative analysis by comparing the sample's emission to that of known standards. Flames are also used in various chemical reactions, and the light they emit can be a result of thermal energy or chemical energy released during exothermic reactions.123

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alkali metal
History
…sample was inserted into a flame). They suggested the presence of a new alkali element and called it cesium, derived from the Latin caesius, used to designate the blue of the sky. The same researchers, on extracting the alkalies from the mineral lepidolite, separated another solution, which yielded two spectral…
Read More
…sample was inserted into a flame). They suggested the presence of a new alkali element and called it cesium, derived from the Latin caesius, used to designate the blue of the sky. The same researchers, on extracting the alkalies from the mineral lepidolite, separated another solution, which yielded two spectral…
Read More