990
ATOMIC ABSORPTION SPECTROPHOTOMETER
Low
Cost High Performance
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
Specifications
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190nm - 900nm |
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Monochromator: |
Czerny-Turner configuration |
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Spectral Bandwidth: |
0.1nm, 0.2nm, 0.4nm, 1.0nm, 2.0nm (5 steps. with automatic changeover) |
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Wavelength Accuracy: |
±0.25nm |
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Wavelength Repeatability: |
0.15nm |
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Baseline Stability: |
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Flame analysis
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Sensitivity (Cu): |
0.03 μg/ml/1% |
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Burner Head: |
Titanium alloy burner |
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Nebulizer: |
High-efficiency glass nebulizer |
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Atomization Chamber: |
Corrosion-resistant material |
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Position Adjustment: |
Automatic changeover of flame and furnace |
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Automatic setting of optimum height for flame burner |
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Safety: |
Automatic ignition and of mixing air-acetylene gas with safety control |
Graphite furnace analysis
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Character Value (Cd): |
0.5Pg |
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Ambient - 2650 |
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Heating: |
Voltage feedback control when drying and ashing; |
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Optical temperature control when atomizing |
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Heating program: |
Up to 9 steps with choices of ramp, temperature increase and full-power |
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heating |
Data processing
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Analytical method: |
flame, graphite furnace and hydride |
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Determination method: |
calibration curves using 1st |
, 2nd |
and 3rd |
order of fit , standard addition |
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method |
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Repetitions: |
1-20 with calculations of average , SD and RSD |
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Result Printout: |
output of parameters, data, spectra and calibration curves |
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Mainframe
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Light Source: |
8 hollow cathode lamp turrets with 2 lamps simultaneously lit ( one lamp |
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pre-heated ) |
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Power Supply: |
110V/60Hz or 220V/50Hz three-phase AC |
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200W (mainframe) 5000W (graphite furnace) |
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Dimensions |
mainframe |
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graphite furnace |
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THE
PGI MB5 SIMULTANEOUS ATOMIC ABSORPTION SPECTROPHOTOMETER
The simultaneous calibration of 5 elements is shown in the software screen shown below:
The MB5 SpectroScan AAS system offers the
analysis of Cu, Zn, Ca, Mg, Fe simultaneously. The
instrument is pre-programmed for the analysis up to 5 elements. A suitable
application for the MB5 is the analysis of Biological Fluids such as Blood.