Atomic Absorption Spectrophotometer (AAS)
Atomic Absorption Spectrophotometer (AAS)
The AA8000 Atomic Absorption Spectrophotometer is a double beam with sealed and vibration free optical system, having Czerny-turner Monochromator with Holographic grating (1800 lines/mm). It’s a high performance automated instrument designed to meet the requirements of the modern laboratory. Due to its versatility and performance it can be used for a wide range of applications including: Agriculture, Soil, Environmental, Food, Metal, Mining, Petrochemical, Clinical, Pharmaceutical.
Standard Features of Fully Automatic True Double Beam – Atomic Absorption Spectrophotometer (AA8000)
Benchtop Model.
- PC system built into the instrument as standard. Windows professional platform with latest version operating system.
- Full software control of the instrument and autosampler.
- Pre-installed AA-Win Software GLP and 21- CFR Part 11 Compliant, export of data to other applications and integrated QC Protocol.
- Automatic 8 lamp turret controlled and optimized by the AA-Win software.
- Automatic alignment and optimization of energy using coded lamps & built-in power supply.
- GLP compliant software is now available for all AA8000 Configurations.
- D2 lamp or Self reversal background systems.
- High precision minimal optics ensures maximum for flame and furnace both light throughput to the computer controlled Czerny-Turner monochromator
- High sensitivity absorbance better than 0.9abs for 5ppm Cu.
- A universal autosampler is available which can be used for flame as well as graphite furnace system with Auto Dilution facility.
- Absorption and Emission modes are standard as well as peak height, peak area, sequential and manual integration modes.
- Autoflame Ignition. Nebulizer Interlock for gas leakage etc.
- New upgrade available with Full Automation for Multi-Element Analysis.
- Spray chambers chemically inert material capable of handling all corrosive materials.
Software Features
- Built in AA Cookbook for all elements.
- Easy built in user Tools.
- Automatic programming multiples of 8 elements approx 32.
- Instrument controlled via built in PC.
- Hallow Cathode Lamp Energy Graph.
- Normal, Standard addition and standard curve calibration methods supported.
- Flexible and comprehensive results database filters to select and display the required data.
- Validation Package:
Validation should able to be performed by the operator.
Automatic OQ test available. - Height of Burner Head – stored in method
Gas Flow Control: Fully Automatic, Software operated mass flow control for Fuel Flow. Total gas flow control system to maintain gas flow (Ratio of fuel/Oxidant) at set levels even when subjected to outside variations like nebulizer adjustments. Automatic gas flow adjustment during change over between Air / C2H2 & N2O.
Typical Specification
| Wavelength Range | 185nm – 915nm |
| Optics | True double Beam, Sealed & Vibration free optical system with a reflective optical compartment. |
| Detector | PMT (wide range) |
| Monochromator | Czerny-turner type with Holographic Grating of 1800 lines/mm and Reciprocal Linear Dispersion better than 1.6 nm/mm, focal length 300mm. |
| Spectral Bandwidth | Adjustable slit from 0.1 nm. to 2 nm. (software selectable) |
| Wavelength Accuracy | ±0.15nm |
| Wavelength Reproducibility | < 0.05nm |
| Resolution | 0.2nm ± 0.02nm |
| Baseline stability | 0.005A/30min |
| Sensitivity(Cu) | >0.9 Absorbance or better for 5 ppm Cu solution |
| Detection Limit | Cu < 0.004 μg/ml (flame) Cd < 0.4 x 10-12 g (graphite furnace) |
| Repeatability | Cu < 0.7% ( Air/Acetylene flame)
Ba < 1.0% ( Nitrous oxide/Acetylene flame) Cu < 2.0% Cd < 2.0% (Graphite Furnace) |
| Background Correction | Deuterium Arc / Self reversal upto 2.5 Absorbance |
| Characteristic correction | Cu < 0.02 μg/ml, Ba < 0.15 mg/ml (NO/Acetylene) Burner Heads |
| Nebuliser | High Efficiency Nebuliser |
| Burner Head | Titanium Alloy |
| Atomization Chamber | Corrosion-resistant material |
| Position Adjustment | Automatic changeover (AA8000GF) Manual (AA8000F)
Automatic Setting of Optimum Height for Flame Burner. Burner movement in horizontal & vertical direction by software. |
| Safety Functions (Interlocks) | Burner Identification, Flame Sensor, Gas leak Sensor, Low Gas Pressure Sensor, Drain Trap Sensor, Power Loss Protection, Circulation Water (graphite), Over Temperature Sensor (graphite) |