UM Chemistry/Facilities/Varian Atomic Absorption Spectroscopy Instrumentation
Varian 220 FS AA and Varian 220 FS G spectrometers are housed in J. M. Smith Chemistry Building, in the Department of Chemistry.
The Varian 220 FS (Fast Sequential) is used for flame-source atomic absorption analysis of aqueous solutions and vapors.
This AA spectrometer operates in both atomic absorption and emission modes. The fast
sequential system offers 4 lamp positions that can be selected in sequence; thus allowing analysis of 4 elements for
a given solution. The instrument is also equipped with the SIPS sample dispersement system which allows on-line
calibration and sample dilution.
The Varian 220 G is used for graphite-furnace atomic absorption analysis of solutions. The graphite furnace is equipped
with an autosampling system, 4 lamp positions, and an automatic lamp selection system.
Both spectrometers are driven using Varian's easy to use worksheet-based SpectrAA software system installed on a Dell pentium IV computer. See the Varian website for further information on these instruments.
Dr. Richard Petersen is the faculty contact for this instrument.
Department of Chemistry, The University of Memphis
| 213 Smith Chemistry Bldg, Memphis, Tennessee 38152-3550
phone 901.678.2621 | fax 901.678.3447