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Atomic Absorption Spectrophotometers– LAAS Series
  • Innovated flame analysis technique.
  • The patented flame analysis technique adopting oxygen rich air acetylene flame as the substitution for nitrous oxide-acetylene flame for high temperature element analysis, such as Ca, Al, Ba, W, Mo, Ti, V, etc. Flame temperature is continuously adjusted between 2300-2950°C,which makes it possible to choose the best atomization temperature for different elements.
  • It features easy operation, low analysis cost.
  • Accurate automatic operation.
  • 6-lamp turret automatic changeover, automatic adjustment of the lamp supply power, automatic optimize spectral beam position.
  • Automatic wavelength scanning and peaking.
  • Automatic spectral bandwidth selection.
  • Automatic igniting.
  • Perfect safety protection measures: Alarm and automatic safety protection to fuel gas leakage, air pressure deficiency and abnormal flame extinction.
  • Adopting large-scale programmable logic array and inter IC bus technology with advanced electronic design.
  • AMP adapters with high reliability to ensure long term reliability of the whole electric system.

Technical Specification:

Model No. 

Atomic Absorption Spectrophotometers– LAAS 110B

Atomic Absorption Spectrophotometers– LAAS 120 B

Atomic Absorption Spectrophotometers– LAAS 130 B

Main Specification Wavelength Range 190-900nm
Wavelength Accuracy ±0.5nm
Resolution better than 0.3nm
Baseline Stability 0.005A/30min
Background Correction The D2 lamp background correction capability at 1A is better than 30 times. The S-H background correction capability at 1.8A is better than 30 times
Hollow Cathode Lamps Lamp Turret 6-lamp turret automatic changeover 4-lamp turret automatic changeover
Lamp Current Adjustment Automatic adjustment and display.Wide pulse current: 0~25mA, Narrow pulse current: 0~10mA. Automatic adjustment and display.Wide pulse current: 0~25mA
Lamp Power Supply mode Powered by two pulses: 400Hz wide pulse and 100Hz narrow pulse simultaneously 400Hz square-wave pulses
Optical System Monochromator Single beam, Czerny-Turner design grating monochromator
Grating 1800 l/mm
Focal Length 277mm
Blazed Wavelength 250nm
Spectral Bandwidth 0.1nm, 0.2nm, 0.4nm, 1.2nm
Detection and Data Processing System Detector Photomultiplier with high sensitivity and wide spectral range
Software Ms-WindowsTM operating system
Analytical Method Working Curve Method (1st order and 2nd order fitting), Standard addition method
Repeatable Measurement Maximum 20 times of repeat measurement, automatic calculation of mean value, standard deviation and relative standard deviation
Condition Reading With model function
Result Printing Measurement of data and final analytical report printout
Flame Analysis Burner 10cm single slot all titanium burner for Air-C2H2flame; 5cm single slot all titanium burner for oxygen rich flame 10cm single slot all titanium burner for Air-C2H2flame
Spray Chamber All plastic spray chamber
Nebulizer High efficiency glass nebulizer with metal sleeve
Position Adjustment Adjusting mechanism for vertical, horizontal positions and the rotation angle of the burner
Protection of Gas System Fuel gas leak protection, abnormal flame extinction alarm, air-pressure deficiency protection and explosion proof device
Flame Ignition Automatic
Characteristics Concentration and Detection Limit Normal Air C2H2 Flame Cu: Characteristic concentration ≤0.05mg/L, Detection limit≤0.006mg/L;
Oxygen Rich Air C2H2Flame Ba: Characteristic concentration ≤0.22mg/L ----
Hydride Generation Hg: detection limit ≤ 0.5μg/L
Dimension (L x W x H) mm 1020x490x540
Weight Unpacked 80kg
Catalog No. 35260104 35260105 35260106