Azzota® High performance AAS Atomic Absorption Spectrometer, Flame/Graphite Furnace
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Features
Specifications
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| Spectrometer System | |
| Wavelength range | 190-900 nm |
| Light source | Hollow cathode lamp (HCL), Deuterium Arc lamp (D2) |
| Modulation | Square wave pulse |
| Modulation frequency |
100 Hz self reversal (SR) background, 400 Hz Deuterium Arc (D2) background |
| Monochromator | |
| Grating | 1800 grooves/mm diffraction grating |
| Blazed wavelength | 250 nm |
| Focus | 300 nm |
| Bandwidth | 0.1, 0.2, 0.5, 1.0, 2.0, 5.0 nm |
| Scan mode | Automatic |
| Photometric type | Single beam |
| Wavelength accuracy | ±0.15 nm |
| Wavelength resolution | 0.2 nm±0.02 nm |
| Wavelength reproducibility | <0.05 nm |
| Spectral bandwidth | 0.5, 1.0, 2.0, 5.0 nm |
| Baseline stability | 0.005 A/30 min |
| Stray light | ≤0.12 %T (220 nm NaI, 340 nm NaNO2) |
| Background correction |
Deuterium Arc (D2) 1.0 Abs, Self Reversal (SR) 3.0 Abs |
| Flame Analysis | |
| Flame types |
Air/Acetylene, Nitrous Oxide/Acetylene, Air/Propane (LPG) |
| Sensitivity (Cu) | 2 μg/ml Absorption >0.280 Abs |
| Characteristic concentration |
Cu<0.02 μg/ml, Ba<0.15 μg/ml (N2O/Acetylene) |
| Detection limit | Cu<0.004 μg/ml |
| Repeatability | Cu<0.7 % (Air/Acetylene Flame) Ba<1.0 % (Nitrous Oxide/Acetylene Flame) |
| Burner heads | Titanium alloy |
| Nebulizer |
High-efficiency glass, Acid proof available as an option |
| Pre-mix chamber | Corrosion-resistant |
| Atomizer selection | Manual (A3F) Automatic changeover (A3FG) |
| Safety features | Burner identification, flame sensor, gas leak sensor, low gas pressure sensor, drain trap sensor, power loss protection |
| Graphite Furnace Analysis | |
| Graphite head | Transversally heated |
| Temperature range | Ambient-2650 ℃ |
| Heating program | Up to 10 steps. Drying, Ashing, Atomization, Cleaning |
| Feedback | Voltage and optical temperature control feedback |
| Sensitivity (Cu) | 50 ng/m Absorption>0.40 Abs |
| Detection limit | Cd<0.004 ng/ml |
| Repeatability |
Cu<2.0 %, Cd<2.0 % |
| Graphite tubes | Pyrolytically coated with a platform |
| Sample size | Up to 20μl |
| Graphite cooling | Water circulator available |
| Safety features |
Burner Identification, Flame Sensor, Gas leak Sensor, Low Gas Pressure Sensor, Drain Trap Sensor, Power Loss Protection, Circulation Water (graphite), Over Temperature Sensor (graphite) |
| Data Processing | |
| Operating program | AA Win Pro software |
| Analytical methods |
Flame AA, Flame AE, Graphite Furnace, Hydride Generation |
| Readout Mode | Continuous, manual, peak height, peak area |
| calibrations | Multi-standard calibration, standard addition, interpolation |
| Data storage | Analytical results, instrument and measurement parameters, signal profile, calibration curve |
| Power Requirements | |
| Main unit | 220 VAC 50/60 Hz 200 W |
| Graphite power supply |
380VAC 50/60Hz, instantaneous power 5 kW current rating 7 kW |
| Dimensions | |
| Main unit |
44 x 21 x 21 in 165 lb |
| Graphite power supply |
20 x 21 x 21 in 154 lb |
