Atomic absorption spectrometry (AAS) is an easy, high-throughput, and inexpensive technology used primarily to analyze compounds in solution.
In AAS, analytes are first atomized so that their characteristic wavelengths are emitted and recorded. Then, during excitation, electrons move up one energy level in their respective atoms when those atoms absorb a specific energy. As electrons return to their original energy state, they emit energy in the form of light. This light has a wavelength that is characteristic of the element. Depending on the light wavelength and its intensity, specific elements can be detected and their concentrations measured.
In general AAS is used for uncomplicated trace metal analysis. Its applications are in the field of food and beverage, water, clinical, and pharmaceutical analysis.
Thermo has below model of AAS for various applications and usages.
- iCE 3300 AAS Atomic Absorption Spectrometer – A simple and versatile model for flame analysis.
- iCE 3400 AAS Atomic Absorption Spectrometer- High detection limit with single graphite furnace.
- iCE 3500 AAS Atomic Absorption Spectrometer – Dual atomizer AAS with Zeeman furnace.
- iCE FIOS AAS Atomic Absorption Spectrometer – To analyze multiple samples at varying concentration range.