Biotechnology
 
    Atomic Absorption Spectrometer

Atomic Absorption Spectrometer

  • Easy-to-use automation software
  • Integrated safety precautions for user protection
  • Precision accuracy with integrated correction system

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Versatile entry-level instrument with a computer-controlled Air/Acetylene flame for general laboratory requirements

Due to its high sensitivity and excellent performance, the instrument can be used for a wide range of applications, including Agricultural, Environmental, Petrochemical, and Clinical.

The versatile instrument is available in three configurations:

AA990F-Flame atomizer only. 

AA990G-Graphite furnace atomizer only. 

AA990FG-Combined with flame and graphite furnace atomizer switch aromatically.  



Key Features

  • Easy-to-use automation software
  • Integrated safety precautions for user protection
  • Precision accuracy with integrated correction system
  • Life cycle value, best choice for less than 8 elements of analysis


                                                              Model:Flame AA System-AA990F,Graphite AA System-AA990G,Combined Flame and Graphite Furnace AA System-AA990FG
Spectrometer System
Wavelength range190-900 nm
Light sourceHollow cathode lamp (HCL),Deuterium Arc lamp (D2)
Modulation Square wave pulse
Modulation frequency

100 Hz self reversal (SR) background,

400 Hz Deuterium Arc (D2) background

Monochromator
Grating 1800 grooves/mm diffraction grating
Blazed wavelength250 nm
Focus 300 nm
Bandwidth 0.1, 0.2, 0.5, 1.0, 2.0, 5.0 nm
Scan modeAutomatic
Photometric typeSingle beam
Wavelength accuracy±0.15 nm
Wavelength resolution0.2 nm±0.02 nm
Wavelength reproducibility<0.05 nm
Spectral bandwidth0.5, 1.0, 2.0, 5.0 nm
Baseline stability0.005 A/30 min
Background correction

Deuterium Arc (D2) 1.0 Abs, 

Self Reversal (SR) 3.0 Abs

Flame Analysis
Flame typeAir/acetylene
Sensitivity (Cu)2 μg/ml Absorption>0.280 Abs
Characteristic ConcentrationCu<0.02 μg/ml
Detection limitCu<0.004 μg/ml
RepeatabilityCu<0.7 %
Burner headTitanium Alloy
Nebulizer 

High–efficiency glass,

acid proof available as an option

Pre-mix chamberCorrosion resistant
Atomizer selectionManual (AA990F)
Automatic changeover (AA990FG)
Safety featuresBurner switch, flame sensor, gas leak sensor, low gas pressure sensor, drain trap sensor, power loss protection
Graphite Furnace Analysis
Graphite head Transversally heated
Temperature rangeAmbient-2650 ℃
Heating programUp to 10 steps. Drying, Ashing, Atomization, Cleaning 
Feedback Voltage and optical temperature control feedback
Sensitivity (Cu)50 ng/m Absorption>0.40 Abs
Detection limit Cd<0.004 ng/ml
Repeatability

Cu<2.0%,

Cd<2.0%

Graphite tubesPyrolytically coated with platform
Sample sizeUp to 20μl
Graphite coolingWater circulator available
Safety features

Burner Switch,

Flame Sensor, 

Gas leak Sensor,

Drain Trap Sensor, 

Power Loss Protection,

Circulation Water (graphite), 

Over Temperature Sensor (graphite)

Data Processing
Operating programAA Win software
Analytical methods

Flame AA, Flame AE,

Graphite Furnace, 

Hydride Generation

Readout ModeContinuous, manual, peak height, peak area
CalibrationsMulti-standard calibration, standard addition, interpolation
Data storageAnalytical results, instrument and measurement parameters, signal profile, calibration curve
Power Requirements
Main unit 220 VAC 50/60 Hz 200 W
Graphite power supply

380 VAC 50/60 Hz

instantaneous power 5kW current rating 7 kW

Dimensions 
Main unit

44× 20 × 20 in

158 lb

Graphite power supply

20 × 20 × 18 in

154 lb