Your reliable Laboratory Instruments specialist

Your reliable Laboratory Instruments specialist

Atomic Absorption Spectrophotometer, BNAAS-A3081G

Advanced circuit design.Adopting large-scale programmable logic arrays.12C bus technique of chips.Brand outlets and electrical connectors with high reliability and quality.Graphite furnace of high sensitivity controlled by digital power.New design of flame atomizer. The graphite tube has long using time. The workstation adopts expert database information system which can support fast and accurate detecting information and methods. The workstation adopts expert database information system which can support fast and accurate detecting information and methods. The operation of the worksta-tion is simple.

 
 Optical system
Wavelength range 190nm-900nm
Monochromator C-T type of eliminating aberration monochromator
Dispersion elements Plane diffraction grating1800 lines/mmindented area40×40mm2
Spectral bandwidth 0.1nm, 0.2nm, 0.4nm, 1.0nm, 2.0nm  for option
Wavelength precision The whole waveband is better than ±0.15nm
Wavelength repeatability The whole waveband is <0.10nm
Resolution Copper lamp 324.7nm0.2nm and bandwidth deviation within ±0.015nm
Baseline drift 0.004A/30min
Element lamp holders  Four lamps can auto-switch without manual-adjustment
Detectors High sensitivity, wide spectral range photomultiplier tube
Flame Atomization System (FAS)
ConcentrationCu 0.02ug/ml/1%
LOQ  Cu 0.006ug/ml
Burner 100mm, single-slit titanium metal burner, which is air-cooled pre-mixed type
Precision RSD≤0.8%
Sprayer High efficiency glass sprayer
Atomization chamber Corrosion-resistant plastic atomization chamber
Position adjustment The auto-setting of flame burner height and position
Safety measures Various of automatic safety protection function
Graphite Atomization System (GAS)
Characteristic statisticCd 0.5×10-12g   
LOQ (Cd) 1.0×10-12g
Precision RSD≤1.5%  
Heating range  Room temperature~3000
Heating operation methods Power control method for dry ashing stage, max power light control for atomization stage
Temperature control precision ≤1%
Heating rate >2000/sec.
Heating condition setting Up to 11 programs, ramp heating , stage heating and max power heating
Safety protection Functions of argon undervoltage instruction, waterflow discharge cooling, overheating or overflow alarm and auto-protection.
Background Subtraction
Back subtraction of deuterium lamp 1Ahour≥50times
Data Processing
Measuring method Air-acetylene flame method and atomic absorption method for hydride generator
Concentration calculate method Standard curve method(1~3 times curve, standard mixing method
Repeat measuring times 1~20 timesrepeatedly measure and calculate the average data and automatically get the standard deviation and relative deviation. 
Result printed Parameter printed, data results printed and exported to Excel, graphics printed and summary report.
1 The structure designation of integrated flflame atomizer and graphite furnace atomizer realizes the auto-switching between them.
2 The lamps can auto switch the turret, auto adjust the power and optimize beam position.
3 It can preset and optimize the working condition of the hollow cathode lamp so that convenient to detect multi elements.
4 Automatic setting for flflow, auto-ignition and flflameout automatic protection.
5 Automatic adjustment for negative high-voltage and lamp current.
6 Automatic setting for the best flflame height and atomizer position, while select the best analyzing conditions and make sure the analysis results reliable.
7 Automatic switching of spectrum bandwidth, 0.1nm, 0.2nm, 0.4nm, 1.0nm, 2.0nm for option.
8 Automatic control for wavelength scanning and peak searching.
9 The automatic injector is easy to operate with high accuracy, automatic control, remote monitoring and can operate without manual monitoring, thereby improving the working efficiency and reducing the operation error.
The reliable safety protection system protects the operators safety all-round. 
  • Reliable position identify.
  • Real-time monitoring for abnormal pressure
  • Real-time monitoring for flame
  • Emergency brake button for accidents
  • Acetylene leak protection system
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