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Model No: AAS-007
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Main Specification
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Wavelength Range
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190-900nm
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Wavelength Accuracy
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Better than ±0.25nm
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Resolution
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Two spectral lines of Mn at 279.5nm and 279.8nm can be energy separated with the spectral bandwidth of 0.2nm and valley- peak ratio less than 30%
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Baseline Stability
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0.004A/30min
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D2 lamp Background Correction
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1A is better than 30 times
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S-H Background Correction
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1.8A better than 30 times
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Light Source System
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Lamp Turret
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Motorized 6-lamp turret (Two high performance HCLs can be mounted on the turret to increase the sensitivity in flame analysis.);
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Lamp Current Adjustment
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Wide pulse current: 0~25mA, Narrow pulse current: 0~10mA
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Lamp Power Supply mode
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400Hz square wave pulse;
100Hz narrow square wave pulse+400Hz wide square wave pulse
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Optical System
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Monochromator
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Single beam, Czerny turner design grating monochromator
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Grating
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1800 l/mm
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Focal Length
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277mm
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Blazed Wavelength
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250nm
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Spectral Bandwidth
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0.1nm, 0.2nm, 0.4nm, 1.2nm auto-switch over
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Flame Atomizer
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Burner
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10cm single slot all-titanium burner
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Spray chamber
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Corrosion resistant all-plastic spray chamber
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Nebulizer
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High efficiency glass nebulizer with metal sleeve, sucking up rate:6-7ml/min
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Emission burner provided
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Graphite Furnace
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Temperature range
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Room temperature~3000ºC
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Heating rate
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2000 ºC /s
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Graphite tube dimensions
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28mm(L)×8mm(OD)
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Precision
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Cd≤3%, Cu≤3%, Mo≤4%
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Detection and Data Processing System
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Detector
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R928 Photomultiplier with high sensitivity and wide spectral range.
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Software
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Under Windows Operating System
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Analytical Method
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Working curve auto-fitting; standard addition method; automatic sensitivity correction, automatic calculation of concentration and content.
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Repeat Times
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1-99 times, automatic calculation of mean value, standard deviation and relative standard deviation.
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Multi-task Functions
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Sequential measurement for multi-element determination to the same sample
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Condition Reading
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With model function
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Result Printing
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Measurement of Data and Final Analysis report printout, editing with Excel
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Standard RS-232 serial port communication
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Graphite Furnace Auto sample
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Sample tray capacity
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55 sample vessels and 5 reagent vessels
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Vessel material
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Polypropylene
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Vessel volume
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3ml for sample vessel, 20ml for reagent vessel
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Minimum sampling volume
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1μl
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Repeatable sampling times
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1 -99 times
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Sampling system
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Accurate dual pump system, with 100μl and 1ml injiectors
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Characteristics Concentration and Detection Limit
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Normal Air C2H2 Flame
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Cu: Characteristic concentration≤0.025mg/L, Detection limit
≤0.006mg/L
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Oxygen Rich Air C2H2Flame
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Ba: Characteristic concentration≤ 0.22mg/L
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Al: Characteristic concentration ≤ 0.4mg/L
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Hydride Generation
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Hg: detection limit≤0.5µg/L
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Function Expansion
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Hydride vapor generator can be connected for hydride analysis
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Dimension
(L x W x H) mm and Weight
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Main Unit
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1070 (L) × 490 (W) × 580 (H)mm , 140kg
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Graphite furnace
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420×420×460mm, 65kg
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Auto sampler
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400×290×290mm, 15kg
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