Atomic Absorption Spectrometer (AA990)

1.Atomic Absorption Spectrometer (AAS):190-900nm, 0.1/0.2/0.4/1.0/2.0nm 2.Flame and Graphite furnace analysis. 3.Date process

A & E Lab.

Main Products: Atomic Absorption Spectrometer (AAS), Fluorescence Spectrophotometer, Bio-Spectrophotometer, UV Vis Spectrophotometer, Visible Spectrophotometer, Flame Photometer, Whiteness Meter, Turbidity Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS Meter, etc.

Features:

Fully Automated

²  The 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.

²  The instruments have a motorised 8 hollow cathode lamp turret which allows the automatic positioning and  

   optimisation of each hollow cathode lamp by the software.

²  The control of the gas flows for the fuel gas (C2H2 ) and the positioning of the bumer is also carried out directly  

    from the software thus allowing optimization of the instruments for the best analytical parameter for a selected

    analysis.

²  Two methods of background correction are available.The first utilises a deuterium lamp and the second is the

    proven method of self reversal.

²  The location of the wavelength and peak selection is automatic and controlled from the software. The spectral

    bandwidth is automated and is available with a choice of five slit sizes.

²  The electronic parameters for the photomultiplier detector,the hollow cathode lamp current and the balancing of

    the absorbance and background energies are controlled from the software.

²  The igntion of the flame is computer controlled and the various safety interlocks offer a very safe operating system.

Technical Specifications:

Flame analysis

Sensitivity(Cu):  0.03μg/ml/1%

Burner Head:    Titanium alloy burner

Atomization Chamber:  Corrosion-resistant material

Position Adjustment:   Automatic Changeover of Flame and Furnace

Automatic setting of Optimum Height for Flame Burner

Safety:  Automatic ignition and mixing air-acetylene gas with safety control.

Graphite furnace analysis

Character Value(Cd):  0.5Pg

Temperature Range:   Ambient-2650°C

Heating:  Voltage feedback control when dry and ashing;

          Optical temperature control when atomizing.

Heating program:  Up to  9 steps with choices of ramp,temperature increase and full-power heating

Background Correction:

Deuterium Lamp Background Correction:  1.0Abs self-Reversal Background Correction: 3.0Abs

Date processing

Analytical method: flame,graphite furnace and hydride.

Model	AE-AA990
Optic System
Wavelength Range	190nm-900nm
Monochromator	Czemy-Turner Configuration
Spectral Bandwidth	0.1nm,0.2nm,0.4nm,1.0nm,2.0nm(5steps. with automatic change over)
Wavelength Accuracy	±0.25nm
Wavelength Repeatability	0.15nm
Baseline Stability	0.005A/30min

Atomic Absorption Spectrometer (AA990)