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AA2630 Graphite Furnace Atomic Absorption Spectrophotometer
Optical System | |
Wavelength range |
190-900nm |
Monochromator |
Aberration poor C-T monochromator. |
Dispersing components |
Planar diffraction grating,1800line/mm,scoring area(40*40)mm2 |
Spectral bandwidth |
0.1, 0.2, 0.4 ,1.0, 2.0nm there are five gear can be choosed automatically |
Wavelength accuracy |
Better than±0.15nm in the full band |
Wavelength repeatability |
In the full band<0.10nm |
Baseline drift |
0.004A/30min |
Detector |
High sensitivity,wide spectral range photomultiplier tube |
Resolution |
It can distinguish manganese lamp279.5nm and 279.8nm(double lines) and the energy less than 20%.
|
Elements of light stand |
Lamp automatically converted,there is no need manual adjustment |
Flame atomic system | |
Characteristic viscosity(Cu) |
0.02ug/ml/1% |
The detection limit (Cu) |
0.005ug/ml |
Burner |
100mm titanium metal burner,air-cooled pre-mixed type |
Precision |
RSD≤0.8% |
Sprayer |
Efficient glass atomizer |
Spraying room |
Corrosion-resistant material spray chamber |
Position adjustment |
Flame burner’s best height and before and after location can be automatically set
|
The safety system |
There are many automatic security features |
Graphite furnace atomization system | |
Characteristic amount(Cd) |
0.5×10-12g |
The detection limit(Cd) |
1.0×10-12g |
Precision |
RSD≤3% |
Heating temperature range |
Room temperature~3000℃ |
Heating temperature control method |
Drying and ashing power control mode, atomization stage using light-controlled maximum power mode
|
The control accuracy of temperature |
accuracy≤1%
|
Heating rate |
>2000℃/s
|
Heating condition set |
Up to 11 programs, ramp heating,stage heats up,the maximum power heating |
Safety protection |
It has argon under-voltage indication,there is not enough cool water,overheat. Over-current alarm and automatic protection function.
|
Background correction | |
Background correction of deuterium lamp |
1A≥30times |
Background correction of self-absorption |
1A≥30times
|
Data processing | |
The measurement method |
Air-acetylene flame method, hydride generator atomic absorption method, oxygen rich- air acetylene flame method, graphite furnace method. |
Concentration calculation method |
The standard curve method(1-3times), the standard join law method, interpolation method. |
Repeat measurement times |
1~20times,to calculate the average value needed to measure repetability, the standard deviation and relative standard deviation are given automatically. |
The results of printing |
The parameter printing,the results of data printing,graphic printing , summary report |
The environment of soft |
Windows 98/2000/XP/Win7 |
Packaging & Shipping
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