Atomic Absorption Spectrometer

• Versatile, entry-level instrument with a computer controlled air/acetylene flame for general laboratory requirements.
• Ideal for use with agricultural, clinical, environmental, food, metal, mining, geological, petrochemical, pharmaceutical industries.
• Wavelength range: 190 to 900nm. Wavelength accuracy: ±0.25nm. Wavelength repeatability: 0.15nm.
• Single beam photometric type.
• Baseline stability: 0.005A/30min.
• Spectral bandwidth is automated with a choice between spectral bandwidth 0.1, 0.2, 0.4, 1.0, 2.0nm (5 steps, automatic changeover).
• Fully automated. Flame and graphite furnace is integrated into one instrument.
• The change over from one technique to another is carried out by simple key strokes within the software.
• Motorised 8 hallow-cathode lamp turret allows the automatic positioning and optimization of each hallow cathode lamp by the software.
• Horizontally heated platform graphite tube. The unique design reduces the chemical interference effects and memory effects by uniformly heating the graphite electrode.
• Optical temperature during the atomization stage ensures rapid heating and rapid analysis. This helps to extend the life of the graphite tube and enhance the analytical accuracy.
• Flame conditions are continuously monitored and an audible alarm sounds if flow rates change.
• Support gas (oxidant) pressure is constantly monitored. Fuel gas is stopped and the flame extinguished if the pressure changes.
• A sensor monitors the level of liquid in the drain and will prevent ignition if it is too low. The flame will also be extinguished of the level of liquid in the drain change significantly.
• Graphite furnace argon pressure is constantly monitored and the heating cycle of the graphite electrode will stop and be de-energised if the pressure changes.
• Cooling water flow rates are also monitored for change and the heating program will stop if changes occur.
• Monochromator: Czemy-Turner Configuration.
• Operating software: AAWin software.
• Readout mode: continuous, manual, peak height, peak area.
• Data storage: analytical results, instrument and measurement parameters, signal profile, calibration curve.
• Dimensions: 110 x 54 x 54cm. Weight: 75kg.
• Power: 220V.

Flame Analysis:

• Sensitivity (Cu): <0.03µg/ml/1%.
• Burner Head: Titanium alloy burner.
• Nebulizer: High-efficiency glass nebulizer.
• Atomization chamber: corrosion-resistant material.
• Position adjustment: automatic changeover of flame and furnace.
• Automatic ignition and off mixing air-acetylene gas with safety control.

Graphite furnace analysis:

• Character value (Cd): 0.5Pg.
• Temperature range: ambient to 2650°C.
• Voltage feedback control when drying and ashing.
• Heating program: up to 9 steps with choices of ramp, temperature increase and full-power heating.
• Deuterium lamp background correction: 1.0A; self-reversal background correction: 1.0A.

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