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Atomic Absorption Spectrophotometer LAAS-A22

Atomic Absorption Spectrophotometer LAAS-A22

Atomic Absorption spectrophotometer comes with flame, graphite furnace and hydride generation system to meet different customer demand. It is provided with deuterium hollow cathode lamp to eliminate the interference of molecular absorption and Titanium Burner to improve the analysis efficiency and accuracy of the flame. The autosampler has integrated graphite furnace design with high-precision syringes to enter volume as minimum as 0.5μl with intelligent online dilution and concentration function. It has great applications research and medicine, environmental science and other industries.

Specifications Features Applications Get Quote View Catalog


Wavelength range 180 – 900 nm
Spectral Bandwidth 0.1 nm,0.2 nm,0.4 nm, 1.0 nm, 2.0 nm automatic setting
Wavelength accuracy ≤ 0.15 nm
Wavelength repeatability ± 0.1 nm
Baseline drift ≤ ± 0.002 Abs/30 min (Static) ≤ ± 0.005 Abs/30 min (Dynamic)
Sample Volume 1 - 100 μl
The volume of sample better than 1 %(at the time of 10 mL - 100 mL)
Repeated Sampling Frequency up to 99 Times
Cleaning and waste container volume Each 500 mL
Absorbance Range 0 - 4 A
The Program Automatic temperature control up to 20 order
Temperature Range room temperature to 3000 ℃
Detector imported photomultiplier tube
Heating Mode vertical heating
Temperature Control Method Vertical optical temperature monitoring graphite tube wall temperature
Temperature Control The furnace enriched up to 20 times
Lamp holder ≤ 6 lamps automatic turret, automatic alignment
Lamp power supply mode pulsed power supply
Optical System Large 1800 /mm grating ruling, full closed optical system
Atomization Chamber Polymer explosion-proof spray chamber
Characteristics Volume 0.5 × 10-12g (Cd)
Characteristic concentration (Cu) 0.015 μg / mL / 1 %
Detection Limit 0.4 × 10-12g (Cd)
Detection Limit (Cu) 0.002 μg/mL
Burner Full titanium combustion head, 50 mm or 100 mm general combustion head
Nebulizer Atomizer efficient glass atomizer,can also be customized
Precision RSD ≤ 0.5
Ignition Type Microcomputer control, automatic ignition
Sample Tray 70 sample cups, 6 reagent cup
The Smallest Lincrement 0.1 μl
Safety measures The graphite tube damage, water flow Air pressure and other alarm temperature overheating protection
Gas Control Automatic gas control system
Measurement Flame method, Hydride generation-Atomic absorption method
Concentration calculation Standard curve method(1 - 3 times curve), automatic fitting
The Cooling Water Can choose cooling water circulation system
The number of repeated measurements 1 to 99, automatic calculation of average concentration, standard deviation, relative standard deviation.
Print results Print the final stages of test data or analysis. The results can be exported into Excel worksheet.
Power supply 110 / 220 V (+5 % ~ (-10) %), 60 / 50 Hz; 5000 VA


High precision automatic optical system

Graphite furnace temperature control

High technical indicators

Deuterium lamp for background correction system

Polymer automization chamber

Powerful, intelligent user-friendly design

Automatic analysis & Sampler


Atomic Absorption spectrophotometer is used in scientific research, quality control, disease control, environmental protection, metallurgy, agriculture, chemical industry, and analysis of samples, equipment maintenance, simple and convenient.

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