An AAS, or atomic absorption spectrometer, is an important tool for measuring the concentration of atoms contained in a sample in the ppb range. The technique is based on the ability of the atoms to absorb light at a specific wavelength. There are many important purchasing considerations for users, such as the application for which the AAS will be utilized, the vaporization method to be used, type of lamp, beam configuration, and the optimal method to correct for background absorption. Future developments in atomic absorption instruments will improve detection limits and offer the ability to analyze a greater spectrum of elements.
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