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AAS –series






AAS –series

Introducing our advanced AAS-series with two exceptional models to elevate your analytical capabilities:


  1. AAS-21: This model comes equipped with 5x Hollow Cathode Lamps for Cu, Mn, Hg, Cd, and Ba. Benefit from the versatility of both Air-C2H2 flame and our patented air-C2H2-O2 flame, serving as a substitution for N2O-C2H2 flame.


  1. AAS-20: Enjoy streamlined analysis with 4x Hollow Cathode Lamps for Cu, Mn, Hg, and Cd. This model offers the convenience of Air-C2H2 flame and automatic changing to graphite furnace for seamless operations.


Unlock precise and accurate measurements with our AAS-series. Explore the features and benefits of each model on our website, and revolutionize your analytical processes for enhanced research and results.





   Wavelength range       190-900 nm
   Wavelength accuracy       Better than ±0.25nm
   Resolution       Two spectral lines of Mn at 279.5nm and 279.8nm can be separated 
     with the spectral bandwidth of 0.2nm and valley-peak energy ratio less than 30%.
   Baseline stability       0.004A/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 (Two high performance HCLs can be mounted on the turret to increase the sensitivity in flame analysis.)
     auto alignment; auto fine adjustment; fully automated scan and peak-picking
   Lamp current adjustment      Wide pulse current: 0~25mA            
     Narrow pulse current: 0~10mA                  
   Lamp power supply mode      400Hz square wave pulse 
     100Hz Narrow square wave pulse + 400Hz wide square wave pulse


Optical System:


   Monochomator      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 auto switch over.


Flame Atomizer:


   Burner      10cm single slot all-titanium burner    
   Spray chamber      Corrosion resistant all-plastic spray chamber.
   Nebulizer      High efficiency glass nebulizer with metal sleeve, sucking up rate: 6-7mL/min


Detection and Data Processing System:


   Detector      R928 Photomultiplier with high sensitivity and wide spectral range. 
   Software      Windows operating system
   Analytical method      Working curve auto-fitting; standard addition method; automatic sensitivity correction; 
     automatic calculation of concentration and content.
   Repeat times      Maximum 20 times of repeat measurement, automatic calculation of mean value, 
     standard deviation and relative standard deviation.
   Multi-task function      Sequential measurement of multi-elements in one sample
   Condition reading      With model function
   Result printing      Measurement data and final analytical report printout, editing with Excel.
   Port      Standard RS-232 serial port communication


Characteristic Concentration and Detection Limit:


   Normal Air-C2H2 flame      Cu: Characteristic concentration≤0.025mg/L, Detection limit≤0.006mg/L;
   Rich-oxygen- Air- C2H2 flame      Ba:  Characteristic concentration ≤ 0.22mg/L
     Al: Characteristic concentration ≤ 0.4mg/L


Graphite Furnace:


   Temperature range      Roomtemperature~3000 ºC
   Heating rate      2000 °C/s
   Graphite tube dimensions      ( L xOD) 28 x 8mm
   Characteristic mass       Cd ≤ 0.8 ×10-12 g, Cu ≤ 5 ×10-12 g, Mo ≤ 1 ×10-11 g
   Precision      Cd ≤ 3%, Cu ≤ 3%, Mo ≤ 4%


Function Expansion:


Hydride vapor generator can be connected for hydride analysis


Dimensions and weight:


   Main unit  (LxWxH)      1020 x 490 x 540 mm / Net weight : 80kg
   Graphite furnace (LxWxH)      420 x 420 x 460 mm / Net weight : 50kg


Ordering Information:


   Model      Description of Article                                                         
   AAS-21      5x Hollow Cathode Lamps : Cu, Mn, Hg, Cd, Ba
     Air-C2H2 flame and patented air-C2H2-O2 flame (Substitution for N2O-C2H2 flame)
   AAS-20      4x Hollow Cathode Lamps : Cu, Mn, Hg, Cd
     Air-C2H2 flame and graphite furnace automatic changing