|
| Place of Origin: | Beijing, China |
| Brand Name: | Persee |
| Model Number: | AA990F |
Product description:
The AA990 Atomic Absorption Spectrophotometer is a versatile entry level instrument with a
com puter controlled Air/Acetylene flame for general laboratory requirements. Due tO its high
sensitivity and excellent performance the instrument can be used for a wide range Of
applications including :
. Agricultural
. FOOd
. Geological
. Clinical
. Metal
. Petrochemical
. Environmental
. Mining
. Pharmaceutical
Specifications:
|
Optical System
|
|
| Wavelength range |
190-1100nm |
| Monochromator | Czerny-Turner Configuration |
| Grating Groove | 1800/nm |
| Spectral Bandwidth |
0.1nm, 0.2nm, 0.5nm, 1.0nm, 2.0nm (with automatic changeover)
|
| Wavelength accurathy |
±0.25nm
|
| Wavelength reproducibility | ≤0.15nm |
| Wavelength resolution | 0.2nm±0.02nm |
| Baseline stability | ±0.004ABs/30min |
| Background correction | Deuterium Arc 1.0Abs SElf Reversal 1.0Abs |
| Flame Analysis | |
| Flame type |
Air/Acetylene;Nitrous Oxide/Acetylene;Air/Propane(LPG)
|
| Characteristic Concentration |
Cu <0.04μg/ml/1% (Air/Acetylene)
Ba < 0.15μg/mL/1% (Nitrous Oxide/Acetylene )
|
| Detection Limit | Cu≤0.006μg/mL |
| Burner | Metal Titanium Alloy Burner |
| Repeatability |
Cu<1.0%(air-acetylene method) Ba <1.0%(air-acetylene method) |
| Sensitivity | Cu 2μg/mL Absorption>0.28Abs |
| Nebulizer | High-efficiency glass nebulizer, Acid proof available as an option |
| Atomization Chamber | Corrosion-resistant material |
| Position Adjustment | Automatic changeover of flame and furnace, automatic setting of optimum height for flame burner |
|
Graphic Furnace Analysis
|
|
| Temperature Range | Ambient-2650℃ |
| Detection limit | Cd≤0.01ng/ml |
| repeatibility | Cu<3%,Cd<4% |
| Heating methods | Advanced graphic furnace horizontal heating |
| Heating and Temperature Control | Voltage feedback control when drying and ashing;
Multi-Standard Calibration, Standard Addition, Interpolation
|
| Temperature Control Precision | <1% |
| Background Correction | (Deuterium Lamp Background Correction and Self-reversal Background Correction )>55 times |
Accessories:
Hydride and cold vapour analysis
AAS falme autosampler
Graphite furnace autosampler
