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Atomic Absorption LAAS-810
 
    Dual light source and dual atomizers, a unique integrated structure design with a high degree of user friendliness.
    • Parallel flame and graphite furnace atomizer, without mechanical movements and changeover, ensuring long time stability and reliability.
    • Adopting constant magnetic field, transverse Zeeman background correction device for both flame and graphite furnace analysis, with super powerful dual atomizer high background correction capability over the whole wavelength range.
    • Multiple shielding technology successfully decreases magnetic interference.
    • Automatic 8 x 2 lamp turrets, automatic adjustment of lamp current and optimize of light beam position.
    • Automatic wavelength scanning and peak picking.
    • Automatic spectral bandwidth changing.
    • Automatic changeover between flame and graphite furnace operation, automatic ignition and automatic gas flow setting.
    • Newly designed graphite furnace and its power supply system with ultra-rapid heating, super long time stability and • super high power efficiency.
    • Intelligent fully automated sampler, with automatic working curve generation, automatic tracing and correction of liquid surface height in the sample vessel, automatic long term memorizing of the sampling probe position.
    • Convenient, friendly and reliable AAS software under Windows XP operation system.
    • Quick setting, automatic adjustment and automatic optimization of instrument parameters.
    • User selectable analytical report formats.
Technical Specification
 

Model No.

Atomic Absorption Spectrophotometer LAAS-810

Main Specification Wavelength Range 190-900nm
Wavelength Accuracy ±0.5nm
Resolution Better than 0.3nm
Baseline Stability 0.005A/30min
Light Source System Lamp Turret Automatic 8×2-lamp turrets (Two high performance hollow cathode lamps can
be mounted on each turret );
Lamp Current 0~15mA
Lamp Power Supply Mode 200Hz square wave pulse
Optical System Monochomator Czerny-Turner type Double Beam
Grating 1800 l/mm
Focal Length 430mm
Blazed Wavelength 250nm
Spectral Bandwidth Fame mode: 0.2, 0.4, 0.8, 1.6mm
Graphite furnace mode: 0.2, 0.4, 1.2mm
Atomizer Flame Atomizer Burner: 10cm single slot all-titanium burner
Spray chamber: directly formed and made of corrosion resistant material.
Nebulizer: High efficiency glass nebulizer with metal sleeve.
Position adjustment: flame height is adjustable.
 
Graphite Furnace Atomizer Temperature range: room temperature~3000°C
Heating rate: 3000°C/s
Graphite tube dimensions: 30mm(L) X 7mm (OD)
Graphite Furnace Sample Tray Capacity 55 sample vessels and 5 reagent vessels
Autosampler Vessel Material Polypropylene
  Vessel Volume 2ml for sample vessel, 20ml for reagent vessel
Minimum Sampling Volume 1µl
Repeatable Sampling Times 1~99 times
Sampling System Accurate dual pump system, with 100?l and 1ml injectors.
Detection and Data Detector R955 Photomultiplier with high sensitivity and wide spectral range
Processing System Software Professional AAS software under Windows XP operating system
  Analytical Method Working curve auto-fitting; standard addition method automatic sensitivity
correction; automatic calculation of concentration and content.
Repeat times 1~99 times, automatic calculation of mean value, standard deviation and
relative standard deviation.
Multi-task Functions Sequential determination of multi-elements in the same sample
Condition Reading With model function
Result Printing Measurement data and final analytical report print out, editing with Excel.
Communication Standard RS-232 serial port; supporting USB port communication
Background correction System Flame constant magnetic field Zeeman  
background correction Magnetic flux density: 1.0T
Graphite furnace constant magnetic field  
Zeeman background correction Magnetic flux density: 1.0T
Dimensions (LxWxH) mm3 Main unit: 1160 × 630 x 570
Auto-sampler: 320 x 270 x 260
Weights Main unit: 160Kg
Auto-sampler: 15Kg
Catalog No. 35260109
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