AA320N Atomic Absorption Spectrophotometer
Features:
Build-in computer data processing and LCD
Adopting highly integrated micro digital circuit, which is stable and reliable with the functions of integral holding, peak height and area, auto zero adjusting, deuterium lamp and background, multi-linear and nonlinear curves fitting, various parameters and working curves displayed in screen and report printing, etc. It is equipped with interface for externally linking PC.
Good basic line stability
Double-beam system of optimized design can automatically compensate the light source drift and wavelength drift caused by the variation of temperature (with the function of the eliminating the affection of wavelength drift on the base line stability) and electronic circuit drift so as to reach a good basic line
Complete set of accessories
To be supplied with the instrument and ready for use after they are purchased.
Light-source system
Hollow cathode lamp power supply: with adjustable current Deuterium Lamp power supply: with fixed current
Optical system
Double beam total refection system, C-T type monochromator Flashing wavelength: 250nm
Flame atomization system
Inter-changeable titanium alloy burner of 10cm and 5cm slits. Gas path is equipped with pressure indication, high precision voltage stabilizing flow adjustment, fast conversion of air and nitrous oxide, gas supply cut off, power cut off, prevention of flashback and logic interlock protection devices.
Signal processing
Specifications:
Working spectral range: 190-900nm
Wavelength accuracy: ≤ ±0.5nm
Wavelength repeatability: ≤ 0.3nm (single direction)
Spectrum bandwidth: 0.2nm, 0.4nm, 0.7nm, 1.4nm, 2.4nm, 5.0nm
Resolution: <40%
Base line stability: ±0.004Abs/30min
Characteristic concentration of copper: ≤ 0.04mg/ml/1%
Detection limit of copper: ≤0.008mg/ml
Background calibration ability: Greater than 30 times.
Standby Interface: RS 232
Instrument power supply: 220V, 3A, 50Hz.
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