Description
AAS –series
Introducing our AAS-series, a state-of-the-art single beam optical technology meticulously designed to harness a high energy throughput, delivering unparalleled detection limits and heightened sensitivity.
Specifications:
| Wavelength range | 190-900 nm |
| Wavelength accuracy | ±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. (only for AAS-10A/12A) | |
Hollow Cathode Lamps:
| Lamp turret | 6-lamp turret (AAS-10A/12A), 4-lamp turret (AAS-13A) |
| Auto-alignment, fully automated scan and peak-picking. | |
| Lamp current adjustment | Automatic adjustment and display. |
| 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 (AAS-10A/12A) |
Optical System:
| Monochromator | 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 automatic change. |
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 |
| Emission burner | Provided with AAS-10A/12A |
Graphite Furnace:
| Temperature range | Room temperature~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% |
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; |
| Oxygen-rich | Ba: Characteristic concentration ≤ 0.22mg/L |
| Air- C2H2 flame | Al: Characteristic concentration ≤ 0.4mg/L (for AAS-10A) |
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-13A | 4-lamp turret, Air-C2H2 flame, Hollow Cathode Lamps : Cu, Mn, Hg,Cd |
| D2 lamp background correction | |
| AAS-12A | 6-lamp turret, Air-C2H2 flame, Emission burner, Hollow Cathode Lamps : Cu, Mn, Hg,Cd |
| D2 & S-H background correction | |
| AAS-10A | 6-lamp turret, Air-C2H2 flame and patented air-C2H2-O2 flame, Emission burner |
| Hollow Cathode Lamps : Cu, Mn, Hg, Cd, Ba, D2 & S-H background correction | |
| Al: Characteristic concentration ≤ 0.4mg/L (for AAS-10A) |
