AAS |Atomic Absorption Spectrophotometer | Atomic Absorption Spectroscopy

The AA 500FG Atomic Absorption Spectrophotometer is available in the following configuration :

  • Flame Only
  • Graphite Furnace
  • Combined Flame and Graphite Furnace with the option for up to nine heating ramps.

 

The system is fully controlled from a PC with AAWin Software. The main features of the system are:

  • The integration of flame burner and graphite furnace in one compact unit enables automatic interchanging between the flame mode and furnace mode using few simple keystrokes.
  • Eight lamp turret for automatic positioning of each hollow cathode lamp.
  • Automatic fuel gas (C2H2) flow rate adjustment to optimise combustion in element analysis.
  • Automatic adjustment of burner height for optimised analysis conditions.
  • Automated wavelength scanning and peak searching.
  • Automatic Reflecting/Transmittance beam-splitter positioning
  • Automatic switchover of spectral bandwidth (5 choices).
  • Automatic PMT and lamp current adjustment, automatic AA and BG energy balance

Specifications :

Wavelength range                          190nm - 900nm

Monochromator                               Czerny-Turner Configuration

Spectral Bandwidth                         0.1nm, 0.2nm, 0.4nm, 1.0nm, 2.0nm, (software selectable).

Wavelength Accuracy                      ± 0.15nm

Wavelength Reproducibility           < 0.05nm

Resolution                                         0.2nm ± 0.02nm

Baseline Stability                              0.005A/30min

Sensitivity (Cu)                                  2 µg/ml Absorption > 0.28A (flame)

Detection Limit                                 Cu < 0.004 ?g/ml (flame) Cd < 0.4 x 10-12g (graphite furnace)

Repeatability                                     Cu < 0.7% (Air/Acetylene flame), Ba < 1.0% ( Nitrous oxide/Acetylene flame), Cu < 2.0% Cd < 2.0% (Graphite Furnace)

Background Correction                   Deuterium Arc, Self reversal

Characteristic Concentration         Cu < 0.02 ?g/ml, Ba < 0.15 mg/ml (N2O/Acetylene)

Burner Heads                                   Titanium Alloy

Nebuliser                                           High-efficiency glass, Acid proof available as an option

Atomization Chamber                      Corrosion-resistant material

Position Adjustment                         Automatic changeover (AA500GF) Manual (AA500F)
Automatic Setting of Optimum Height for Flame Burner.

Safety Functions                               Burner Identification, Flame Sensor, Gas leak Senso

 

 

 

 
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