BACKGROUND-CORRECTED SIMULTANEOUS MULTIELEMENT ATOMIC-ABSORPTION SPECTROMETER

A multielement atomic absorption spectrometer has been developed based on a continuum source and an echelle polychromator modified for wavelength modulation (SIMAAC). The instrument is capable of measuring up to 16 elements simultaneously with either flame or electrothermal atomization. Double beam operation and dynamic background correction are achieved on all channels. Approximately 100 absorbances are calculated per second per channel. Detection limits for SIMAAC with electrothermal atomization are comparable to the single element mode of operation and to commercially available AA instruments using electrothermal atomization. © 1979, American Chemical Society. All rights reserved.