Varian SpectrAA 220 FS

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Varian SpectrAA 220 Fast Sequential (FS) Atomic Absorption Spectrometer (AAS)


Varian SpectrAA 220 FS atomic absorption spectometer instrument. (Picture taken by Saku Mattila.)

Name and Model (Year of Manufacture/Installation)

Varian SpectrAA 220 FS (1997/1997)

General Information

An atomic absorption spectrometer (AAS) for analyzation of metals.

Atomiabsorptiospektrometri metallianalytiikkaan.  

Key Specifications       

Format: 1 channel, double beam.
Background correct: Fast (2 msec) deuterium arc lamp to 2.3 absorbance units, 185-425 nm, electronic beam balance 2

Monochromator: Czerny-Turner with 1,200 lines/mm, holographic quartzovercoated grating, automatic wavelength & slit-size control 1

Focal length: 250 Supports; Fast Sequential operation, a mode that allows multiple elements to be measured in rapid sequence in 1 sample, improving productivity by up to 50%.

Wavelength range: 185 to 900 nm
Resolution (nm): 0.2, 0.5, 1; 0.5 reduced  
Scattering: 3.2-2.4 nm/mm

Detection limits

Ca: 0.4 ppb
Cu: 38749 ppb
Fe: 38783 ppb
Li: 0.9 mmol / liter (testing range)
Mg: 0.3 basic/time, min
As: 0.22 ppb
Cu: 0.15 ppb
Ni: 0.38 ppb
Pb: 0.1 ppb
Se: 0.23 ppb

  • Working curve (detection limits): Blank and 10 standards, 8 algorithms. Additional readouts include corrected signals and calibration graphs.
  • Burner-atomizer: Changeable, laminar, adjustable, optional N2O, premix universal atomizer with fully adjustable nebulizer, fully shielded flame with double-skin chimney.
  • 4 hollow-cathode lamps
  • Varian SIPS Sample Introduction Pump System.
Key Features
  • Four lamp positions with automated wavelength and slit selection, and high intensity deuterium background correction as standard.
  • Due to the SIPS accessory, and autosampler, the run only took 10 minutes to calibrate the 4 elements and run 3 samples. (nominal data; the time depends from all the factors which are affecting to the scanning process)
  • SpectraAA Windows software.
Location, Contact Person

Dept. of Chemistry, YSK451 / Jukka Pekka Isoaho

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