AA990 AAS
The AA900 Atomic Absorption Spectrometer is a versatile entry level instrument with a computer controlled Air/Acetylene flame for general laboratory requirements.
Due to its high sensitivity and excellent performance the instrument can be used for a wide range of applications.
The versatile instrument is available in three configurations:
AA990F-Flame atomizer only.
AA990G-Graphite furnace atomizer only.
AA990FG-Combined with flame and graphite furnace atomizer switch automatically.
Common Applications include: Agricultural, Environmental, Petrochemical, Clinical.
Key Features
◆ Easy-to-use automation software
◆ Integrated safety precautions for user protection
◆ Precision accuracy with integrated correction system
◆ Life cycle value, best choice for less than 8 elements of analysis
Specifications
Model:Flame AA System-AA990F,Graphite AA System-AA990G,Combined Flame and Graphite Furnace AA System-AA990FG | |
Spectrometer System | |
Wavelength range | 190-900 nm |
Light source | Hollow cathode lamp (HCL), Deuterium Arc lamp (D2) |
Modulation | Square wave pulse |
Modulation frequency | 100 Hz self reversal (SR) background, 400 Hz Deuterium Arc (D2) background |
Monochromator | |
Grating | 1800 grooves/mm diffraction grating |
Blazed wavelength | 250 nm |
Focus | 300 nm |
Bandwidth | 0.1, 0.2, 0.5, 1.0, 2.0, 5.0 nm |
Scan mode | Automatic |
Photometric type | Single beam |
Wavelength accuracy | ±0.15 nm |
Wavelength resolution | 0.2 nm±0.02 nm |
Wavelength reproducibility | <0.05 nm |
Spectral bandwidth | 0.5, 1.0, 2.0, 5.0 nm |
Baseline stability | 0.005 A/30 min |
Background correction | Deuterium Arc (D2) 1.0 Abs, Self Reversal (SR) 3.0 Abs |
Flame Analysis | |
Flame type | Air/acetylene |
Sensitivity (Cu) | 2 μg/ml Absorption>0.280 Abs |
Characteristic Concentration | Cu<0.02 μg/ml |
Detection limit | Cu<0.004 μg/ml |
Repeatability | Cu<0.7 % |
Burner head | Titanium Alloy |
Nebulizer | High–efficiency glass, acid proof available as an option |
Pre-mix chamber | Corrosion resistant |
Atomizer selection | Manual (AA990F) Automatic changeover (AA990FG) |
Safety features | Burner switch, flame sensor, gas leak sensor, low gas pressure sensor, drain trap sensor, power loss protection |
Graphite Furnace Analysis | |
Graphite head | Transversally heated |
Temperature range | Ambient-2650 ℃ |
Heating program | Up to 10 steps. Drying, Ashing, Atomization, Cleaning |
Feedback | Voltage and optical temperature control feedback |
Sensitivity (Cu) | 50 ng/m Absorption>0.40 Abs |
Detection limit | Cd<0.004 ng/ml |
Repeatability | Cu<2.0%, Cd<2.0% |
Graphite tubes | Pyrolytically coated with platform |
Sample size | Up to 20μl |
Graphite cooling | Water circulator available |
Safety features | Burner Switch, Flame Sensor, Gas leak Sensor, Drain Trap Sensor, Power Loss Protection, Circulation Water (graphite), Over Temperature Sensor (graphite) |
Data Processing | |
Operating program | AA Win software |
Analytical methods | Flame AA, Flame AE, Graphite Furnace, Hydride Generation |
Readout Mode | Continuous, manual, peak height, peak area |
Calibrations | Multi-standard calibration, standard addition, interpolation |
Data storage | Analytical results, instrument and measurement parameters, signal profile, calibration curve |
Power Requirements | |
Main unit | 220 VAC 50/60 Hz 200 W |
Graphite power supply | 380 VAC 50/60 Hz instantaneous power 5kW current rating 7 kW |
Dimensions | |
Main unit | 44× 20 × 20 in 158 lb |
Graphite power supply | 20 × 20 × 18 in 154 lb |
Accessories & Spare Parts
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ASC-910 Graphite Furnace Auto sampler
Description:
The device is a dedicated graphite furnace auto sampler for AA990 Atomic Absorption Spectrophotometer. It can sip standards and samples automatically and clean the sampling head and pipelines automatically as well as add matrix modifier etc solvents automatically.
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ASC-900 Flame Auto sampler
Description:
The device is a dedicated flame auto sampler for AA990 Atomic Absorption Spectrophotometer. It can suck stan-dard samples and samples automatically and clean the sampling head and pipelines automatically.
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Single Element Hollow Cathode Lamps (All Elements)
Description:
Different element analysis needs different element lamp.
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B301001-00 Graphite Tubes with Platform
Description:
Life time over than 600 times heating.
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0932-04-03-01-00 Glass Nebulizer
Description:
For general purpose, cannot proof acid.
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WHG-103B Hydride Generator
Description:
This generator belongs to the flow injection type, which must be used together with the atomic absorption spectrophotometer (main unit). The hydride atomic absorption method is used to determine trace elements such as As, Se, Sb, Bi, Pb, Sn, Te and Ge. The cold atomic absorption is used to determine Hg in the sample.
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CW-1Y Cooling Water Circulator
Description:
CW-1Y Cooling water circulator takes water as the heat transfer medium to transfer the heat quantity produced by the instruments or equipments, then the refrigerating machine dissi-pates the heat outside to ensure the instruments working in the normal temperature.
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AC-1Y Air Compressor
Description:
AC-1Y air compressor can be used to supply an atomic absorption spectrophotometer with compressed air.
Rated discharge pressure: 44psi
Output rate: 0.3-0.9m3/h (adjustable)
Noise: smaller than 55dB
Power supply: AC110V 60HZ
Dimension: 400×300×620(mm)
Ambient condition: ambient temperature less than 35℃
Relative humidity less than 80%