Agilent 240FS AA

The Agilent 240FS can be operated in either flame or furnace mode. The appropriate module must be installed prior to any analysis. Please be sure to request your needed module by contacting Dr. McCurry in advance.

Flame Atomic Absorption Spectroscopy

Flame atomic absorption spectroscopy (FAAS) is an instrumental technique used to quantitatively measure trace elements in the parts per million (ppm) range. Elements analysed using FAAS are measured in the ground state as opposed to other analytical methods like flame emission spectroscopy (FES) which measures elements in excited states. This allows for FAAS to have lower detection limits for most elements. Sample analaysis uses a flame to vaporize a solution containing an element of interest. All chemical bonds associated with the element are broken and the element is therefore atmoized and its emitted radiation appear as spectroscopic bands. The bands produced by FAAS are much more narrow than the bands produced by UV-Visible spectroscopy since singular elements are analyzed with minial molecular interactions as opposed to solutions where the analyte inetracts with the solvent. The bandwith source is provided by a hallow cathode lamp made of the same element as the element being analyzed which provides the wavelength used for analysis.

• Flame
  • Procedure
• UltrAA Graphite Furnace
  • Method Set-up
  • Instrument Alignment
  • Autosampler