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    PRODUCTION FACILITY
    KARALTAY SCIENTIFFIC INSTRUMENTS CO., LTD.
    Room 1015,Beijing Research Institute of Meha-
    nical & Electrical Technology,No.18 Xueqing Road,
    Haidian District,
    Beijing,P.R. China 100083
    Tel:+86-10-62023948
    Fax:+86-10-62016954
    E-mail:sals@karaltay.com

    PGI 990 AAS

    Flame Only Graphite Furnace Combined Flame and Graphite Furnace with the option for up

    The PGI 990 Atomic Absorption Spectrophotometer is available in the following configuration:

    ,         Flame Only

    ,         Graphite Furnace

    ,         Combined Flame and Graphite Furnace with the option for up to nine heating ramps.

     

    The system is fully controlled from a PC with AAWin Software. The main features of the system are:

    ,The integration of flame burner and graphite furnace in one compact unit enables automatic interchanging between the flame mode and furnace mode using few simple keystrokes.

    ,Eight lamp turret for automatic positioning of each hollow cathode lamp.

    ,Automatic fuel gas (C2H2) flow rate adjustment to optimize combustion in element analysis.

    ,Automatic adjustment of burner height for optimized analysis conditions.

    ,Automated wavelength scanning and peak searching.

    ,Automatic Reflecting/Transmittance beam-splitter positioning

    ,Automatic switchover of spectral bandwidth (5 choices).

    ,Automatic PMT and lamp current adjustment, automatic AA and BG energy balance

     

    Specification:

     

    Wavelength Range:

    190nm - 900nm

    Monochromator:

    Czerny-Turner configuration

    Spectral Bandwidth:

    0.1nm, 0.2nm, 0.4nm, 1.0nm, 2.0nm (5 steps. with automatic changeover)

    Wavelength Accuracy:

    \0.25nm

    Wavelength Repeatability:

    0.15nm

    Baseline Stability:

    0.005A/30 min

     

    Flame analysis

     

    Sensitivity (Cu):

    0.03 μg/ml/1%

    Burner Head:

    Titanium alloy burner

    Nebulizer:

    High-efficiency glass nebulizer

    Atomization Chamber:

    Corrosion-resistant material

    Position Adjustment:

    Automatic changeover of flame and furnace

     

    Automatic setting of optimum height for flame burner

    Safety:

    Automatic ignition and of mixing air-acetylene gas with safety control

     

    Graphite furnace analysis

     

    Character Value (Cd):

    0.5Pg

    Temperature Range:

    Ambient - 2650

    Heating:

    Voltage feedback control when drying and ashing;

     

    Optical temperature control when atomizing

    Heating program:

    Up to 9 steps with choices of ramp, temperature increase and full-power

     

    heating

     

    Data processing

     

    Analytical method:

    flame, graphite furnace and hydride

    Determination method:

    calibration curves using 1st

    , 2nd

    and 3rd

    order of fit , standard addition

     

    method

     

     

     

    Repetitions:

    1-20 with calculations of average , SD and RSD

    Result Printout:

    output of parameters, data, spectra and calibration curves

     

    Mainframe

     

    Light Source:

    8 hollow cathode lamp turrets with 2 lamps simultaneously lit ( one lamp

     

    pre-heated )

    Power Supply:

    110V/60Hz or 220V/50Hz three-phase AC

     

    200W (mainframe) 5000W (graphite furnace)

    Dimensions

    mainframe 110 cm x 50cm x 45cm

     

    graphite furnace

    50cm x 50cm x 45cm

    母溺岱2 戴