Flame atomic absorption spectrometerUse flames to atomize the sample, converting the element to be tested into ground state atomic vapor. When light of a specific wavelength passes through a flame, the ground state atoms absorb the light of that wavelength, and electrons transition from the ground state to the excited state. By measuring the intensity of absorbed light and combining it with the Beer Lambert law (absorbance is proportional to element concentration), the content of elements in the sample can be quantitatively analyzed.

　　Flame atomic absorption spectrometerThe core structure:

Light source: Hollow cathode lamps or electrodeless discharge lamps are usually used to emit characteristic spectral lines of the element to be measured.

Atomization system:

Combustion head: Introduce the sample into the flame to provide a stable high-temperature environment (such as air acetylene flame or nitrous oxide acetylene high-temperature flame).

Nebulizer: Atomize the sample solution into small particles for easy atomization.

Dispersant: Further refine atomized particles to improve atomization efficiency.

Spectral system: Separate characteristic wavelengths and eliminate interference through a monochromator (such as the Cherny Turner type).

Detection system: The photomultiplier tube or solid-state detector measures the absorbed light intensity and converts it into an electrical signal.

Data processing system: Analyze signals and output results.