Search results with tag "Atomic absorption determination of zinc and"

Atomic Absorption Determination of Zinc and Copper in a ...

Hollow cathode lamps are used as the source on an atomic absorption spectrophotometer. The lamp has a cylindrical metal cathode sealed in a glass tube containing argon or neon. When a voltage is applied, the metal atoms of the cathode become electrically excited and then emit photons of light when they return to the ground state.

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