Graphite Atomic Absorption Spectrophotometer PG990G
Features & Functions
- The unique design of the graphite furnace reduces the chemical interference effects and memory effects by uniformly heating the graphite electrode.
- The computer controlled heating program allows the user to select the best heating program for the analysis
- The optical temperature during the atomisation stage ensures the rapid heating and rapid analysis.This helps to extend the life of the graphite tube and enhances analytical accruacy.
Safety
- Argon gas pressure sensor
- Water flow sensor
- Over temperature sensor
- Broken graphite tube protection
Specifications:
|
Optic System |
|
|
Wavelength range |
190-900nm |
|
Monochromator |
Czerny-turner configuration |
|
Bandwidth |
0.1, 0.2, 0.4, 1.0, 2.0, 5.0nm |
|
Wavelength accuracy |
+0.25nm |
|
Wavelength repeatability |
0.15nm |
|
Baseline stability |
0.005A/30min |
|
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 |
|
Background correction |
|
|
Deuterium lamp background correction |
1.0Abs Self-reversal background correction:1.0Abs |
|
Data Processing |
|
|
Analytical methods |
graphite furnace |
|
Determination method |
Calibration curves using 1st,2ndand 3rd order of fit, standard addition method |
|
Repetitions |
1-20with caculations 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-pahase AC 200W(mainframe) 5000W (graphite furnace) |
|
Dimensions |
Mainframe 110cm,50cm,45cm Graphite furnace 50cm,50cm,45cm |
Applications:
Agricultural
Clinical
Environmental
Food
Metal
Mining
Geological
Pertrochemical
Pharmaceutical
