AAS-220B Atomic Absorption Spectrometry (AAS)

AAS-220B Atomic Absorption Spectrometry (AAS) Brand-new AAS series based on more than 40 years experience and new generation technology platform.


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Higher Reliability:

  • More than 40 years experience in AAS R&D and manufacturing
  • Aberration eliminated C-Ttype monochromator with stable performance
  • Modular electronic circuits design with easy operation and maintenance
  • Reliable gas-liquid separator and fuel gas filter device provide the robustness even in high humid and harsh environment

Higher Safety:

  • Intelligent feedback detection technique, real-time monitors the lamp current and protects the hollow cathode lamps
  • Simple structure modular gas supply system provides lower fault rate, higher safety and reliability
  • High precision mass flow controller and stable electronics in flame system control the fuel flow accurately. Temperature control protection system together with dual air circuit breakers in GF system, effectively prevent current overload or abnormal temperature rise
  • Multiple safety interlock device and prompt information display prevent possible dangers

More easy to use:

  • Unique light source system, with 8-lamp turret fully automatic change and optimization, supports 1 lamp working and 7 lamps preheating in the same time
  • Easy changing emission burner for easily ionized elements such as K, Na, etc, with linear range 3 times that of normal flame Temperature control modes in graphite furnace analysis can be switched over easily between optical control and constant voltage control, according to different elements and graphite tubes, for the best results and extending the lifetime of graphite tubes
  • One-click automatic optimization, easy analytical condition setting, expert database support, for easy operation with no worries

Fewer Faults:

  • Hamamatsu’s high performance PMTas the detector
  • Molding PPS spray chamber has high chemical stability, withstanding high temperature and strong acids etc
  • The communication system is based on the mature bussing technique. It improves antijamming capability and data transmission reliability


Wavelength Range:

  • 190nm ~ 900nm

Light Source:

  • 8-lamp turret automatically rotates and aligns
  • 2 positions for High performance lamp
  • 8-lamp power on and multiple lamp preheat at the same time
  • Lamp current range: 0~15mA

Optical System:

  • Optical System
  • Diffraction Grating: Groove 1800lines/mm, blaze wavelength 250nm
  • Focal Length: 277mm
  • Spectral Bandwidth: 0.1nm, 0.2nm, 0.4nm, 1.2nm automatically change
  • Automatic peak-picking, automatic spectral bandwidth setting, automatic energy and wavelength optimization

Flame System:

  • 10cm Ti burner head for air-acetylene flame, emission burner provided
  • Burner head height push-button adjustable and horizontal position manually adjusted, with burner angle rotatable.
  • Direct forming spray chamber with corrosion-resistant material PPS
  • Automatic ignition with high precision mass flow control system, realizing fully automated fuel gas flow control an adjustment

Safety Protection:

  • Full package of safety protection measures, with hardware and software dual alarm system
  • Real-time monitoring for flame condition and air pressure etc., with automatic flame shutting down, gas supply cutting off and activating alarm when abnormal detected, such as ignition failure, fuel gas leakage, flow control error, etc.
  • Real-time monitoring for GF conditions and heating program etc., with automatic power cut-off and alarm when abnormal detected, such as water and gas control error, graphite tube installation mistake, and temperature control problem etc.

Background Correction:

  • D2 lamp background correction, with correction ability more than 30 times
  • S-H background correction, with correction ability more than 30 times.

Software and Communication:

  • Intelligent operation software compatible to WinXP, Win7, Win8, Win10.
  • One-key operation for instrument optimization, supporting multi-task analysis.
  • Automatic curve fitting, automatic re-slope, automatic concentration calculation, etc.
  • Repeat measure 1~99 times, automatic calculation of Average Value, Standard Deviation, RSD, etc.
  • Standard USB communication port.

Power Supply:

  • Main Unit: Single phase AC, 110V/220V, max power consumption: 0.15kVA

Dimensions and Weight:

  • Main Unit: 1020mm(L) x 530mm(W) x 500mm(H), 80kg
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Function Model B Series
220B 220B Es
Wavelength range 190 nm~900 nm
Optical System Lamp turret 8 8
High performance lamp 2 0
Multi-lamp warming-up 4 2
Slit selection 5 4
Monochromator C-T Type C-T Type
Photomultiplier R928 CR131
Atomizer Graphite furnace Not available Not available
Air-C2H2 Flame Standard Standard
Flame emission Standard Not available
Rich oxygen air-C2H2 flame (manual adjustment) Optional Not available
Background Correction System Deuterium lamp Standard Standard
Self-absorption Standard Not available
Automation and Control System Auto-wavelength Standard Not available
Automatic flame ignition Standard Standard
Automatic gasflow Standard Not available
Flame auxiliary system Standard Not available
Flame sampler Optional Not available
Graphite furnace sampler Not available Not available
Graphite furnace visualization system Not available Not available
Comprehensive Security Protection and Alarm System Standard Standard
Function expansion Audit trail function Optional Optional
Hydride generator Optional Optional
Special burner for high salt Optional Not available
Mono-atomizer upgrade Optional Not available
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