Description
AAS –series
Introducing our advanced AAS-series with two exceptional models to elevate your analytical capabilities:
- AAS-21: This model comes equipped with 5x Hollow Cathode Lamps for Cu, Mn, Hg, Cd, and Ba. Benefit from the versatility of both Air-C2H2 flame and our patented air-C2H2-O2 flame, serving as a substitution for N2O-C2H2 flame.
- AAS-20: Enjoy streamlined analysis with 4x Hollow Cathode Lamps for Cu, Mn, Hg, and Cd. This model offers the convenience of Air-C2H2 flame and automatic changing to graphite furnace for seamless operations.
Unlock precise and accurate measurements with our AAS-series. Explore the features and benefits of each model on our website, and revolutionize your analytical processes for enhanced research and results.
Specifications:
| Wavelength range | 190-900 nm |
| Wavelength accuracy | Better than ±0.25nm |
| Resolution | Two spectral lines of Mn at 279.5nm and 279.8nm can be separated |
| with the spectral bandwidth of 0.2nm and valley-peak energy ratio less than 30%. | |
| Baseline stability | 0.004A/30min |
| Background correction | The D2 lamp background correction capability at 1A is better than 30 times. |
| The S-H background correction capability at 1.8A is better than 30 times. |
Hollow Cathode Lamps:
| Lamp turret | 6-lamp turret (Two high performance HCLs can be mounted on the turret to increase the sensitivity in flame analysis.) |
| auto alignment; auto fine adjustment; fully automated scan and peak-picking | |
| Lamp current adjustment | Wide pulse current: 0~25mA |
| Narrow pulse current: 0~10mA | |
| Lamp power supply mode | 400Hz square wave pulse |
| 100Hz Narrow square wave pulse + 400Hz wide square wave pulse |
Optical System:
| Monochomator | Single beam, Czerny-Turner design grating monochromator |
| Grating | 1800 l/mm |
| Focal length | 277mm |
| Blazed Wavelength | 250nm |
| Spectral Bandwidth | 0.1nm, 0.2nm, 0.4nm, 1.2nm auto switch over. |
Flame Atomizer:
| Burner | 10cm single slot all-titanium burner |
| Spray chamber | Corrosion resistant all-plastic spray chamber. |
| Nebulizer | High efficiency glass nebulizer with metal sleeve, sucking up rate: 6-7mL/min |
Detection and Data Processing System:
| Detector | R928 Photomultiplier with high sensitivity and wide spectral range. |
| Software | Windows operating system |
| Analytical method | Working curve auto-fitting; standard addition method; automatic sensitivity correction; |
| automatic calculation of concentration and content. | |
| Repeat times | Maximum 20 times of repeat measurement, automatic calculation of mean value, |
| standard deviation and relative standard deviation. | |
| Multi-task function | Sequential measurement of multi-elements in one sample |
| Condition reading | With model function |
| Result printing | Measurement data and final analytical report printout, editing with Excel. |
| Port | Standard RS-232 serial port communication |
Characteristic Concentration and Detection Limit:
| Normal Air-C2H2 flame | Cu: Characteristic concentration≤0.025mg/L, Detection limit≤0.006mg/L; |
| Rich-oxygen- Air- C2H2 flame | Ba: Characteristic concentration ≤ 0.22mg/L |
| Al: Characteristic concentration ≤ 0.4mg/L |
Graphite Furnace:
| Temperature range | Roomtemperature~3000 ºC |
| Heating rate | 2000 °C/s |
| Graphite tube dimensions | ( L xOD) 28 x 8mm |
| Characteristic mass | Cd ≤ 0.8 ×10-12 g, Cu ≤ 5 ×10-12 g, Mo ≤ 1 ×10-11 g |
| Precision | Cd ≤ 3%, Cu ≤ 3%, Mo ≤ 4% |
Function Expansion:
Hydride vapor generator can be connected for hydride analysis
Dimensions and weight:
| Main unit (LxWxH) | 1020 x 490 x 540 mm / Net weight : 80kg |
| Graphite furnace (LxWxH) | 420 x 420 x 460 mm / Net weight : 50kg |
Ordering Information:
| Model | Description of Article |
| AAS-21 | 5x Hollow Cathode Lamps : Cu, Mn, Hg, Cd, Ba |
| Air-C2H2 flame and patented air-C2H2-O2 flame (Substitution for N2O-C2H2 flame) | |
| AAS-20 | 4x Hollow Cathode Lamps : Cu, Mn, Hg, Cd |
| Air-C2H2 flame and graphite furnace automatic changing |
