The AAS is fully PC controlled with modern and compact design. They have flexible configuration and different accessories to meet variable requirements. Advance optical system can guarantee stable and reliable performance. Unique and intelligent gas control module can ensure the device safety. The AAS can test more than 70 elements including metallic and non-metallic elements, which can be used widely in petrochemistry, metallurgy, mining, geology, material analysis, food and pharmacy.
Main Features
- Total reflection optical system can reduce energy loss to ensure better signal-to-noise ratio and lower detection limit.
- Standard deuterium lamp background correction for all models. Standard high-performance self-absorption background correction for double beam models, and optional for the models with 8-lamp turret.
- Automatic pneumatic control module ensures the device safety and accuracy and protects the operator and device better.
- Automatic vertical 4/8-lamp turret supports high-performance element lamp, can be rotated 360 degrees and make sure the test accuracy and reliability is not affected by the gravity.
- Modular design for optical system and circuit makes the maintenance and repair simple.
- Professional, automatic and easy to operate full operation RGWIN AAS software under MS window system and QA/QC function.
- Transversely heated graphite tube ensures the consistency of the gas temperature in the graphite tube, and make the sample reach the atomic temperature instantly and simultaneously, improve atomic efficiency and test accuracy, ensure that the analysis results are more accurate, reduce the requirements for furnace body and prolong lifetime.
- Safety protection system: pressure monitoring (the graphite furnace will not work if the argon pressure is too high or too low), graphite tube installation self-inspection.
Graphite Furnace AAS Specification
| Model | AA3014 | AA3018 | |
| Optical System | Optical Type | Single beam | Single beam |
| Monochromator | Czerny-Turner type with focal lengths at 350mm | ||
| Wavelength Range | 190-900nm | ||
| Grating | Holographic diffraction grating with 1800 lines/mm | ||
| Slits | Automated slit selection 0.1, 0.2, 0.4, 0.7, 1.4, 2.0 nm | ||
| Wavelength Accuracy | ±0.3 nm | ±0.2 nm | |
| Wavelength Repeatability | ±0.1nm | ±0.1nm | |
| Lamp | Automated 4-lamp turret | Automated 8-lamp turret | |
| Detector | Wide range UV sensitive photomultiplier tube | ||
| Photometric
Performance |
Reading Mode | Transmittance(T), Absorbance(A), Concentration(C) | |
| Photometric Range | 0-125%, -0.1-3.00A | ||
| Static Baseline Drift (Cu) | ≤0.004A/30 min | ≤0.003A/30 min | |
| Dynamic Baseline Drift (Cu) | ≤0.006A/15 min | ≤0.005A/15 min | |
| Background Correction | Deuterium (D2) Background Correction | ||
| Graphite
Furnace Analysis |
Characteristic Concentration | Cd≤0.9pg , Cu≤20pg | Cd≤0.9pg , Cu≤20pg |
| Detection Limit | Cd≤1.5pg , Cu≤25pg | Cd≤1.5pg , Cu≤25pg | |
| Repeatability (Cu) | RSD≤4% | RSD≤4% | |
| Temperature Range | Ambient -3000℃ | Ambient -3000℃ | |
| Ramp and holding time | 1-255s | 1-255s | |
| Heating Rate | Maximum linear heating rate 2000℃/s | ||
| Atomization Heating Method | Light-controlled heating, Time-controlled heating, General heating | ||
| Gas Flow Rate Inside Tube | 1 L/min | ||
| Gas Flow Rate Outside Tube | 4-speed adjustable (0, 50, 200, 250ml/min) | ||
| Safety Protection | Water flow sensor, Argon pressure sensor, Furnace body temperature sensor, Graphite tube installation self-inspection. | ||
| Data Processing | Software | RGWIN AAS software package | |
| Analytical Method | Flame AA, Flame AE, Hydride Generation | ||
| Concentration Calculation
Method |
Standard curve(6 linear/non-linear fitting), Standard Addition, Interpolation | ||
| Repeated Measurement Times | 1-30 times, calculate the average, show SD and RSD value of absorbance and concentration | ||
| QA/QC Function | Correlation coefficient, SD & RSD of Abs and calculate SD & RSD of concentration | ||
| Report Printing | Parameter printing, resulting printing | ||
| Communication Port | Standard RS-232 | ||
| Others | Computer | External(excluded) | |
| Dimension & Weight | 850*650*550MM(W*D*H), 100Kg | ||
| Power Supply | 110/220V, 50/60Hz | ||
| Working Environment | Temperature 10 ~ 35 °C, Humidity≦85% | ||
Packing List
| NO. | Description | Qty | NO. | Description | Qty |
| 1 | Main Unit | 1 | 9 | Argon pressure reducing valve connector | 1 |
| 2 | Power Cable | 1 | 10 | High power socket | 1 |
| 3 | Data Cable | 1 | 11 | 6*4mm argon tube(transparent) | 10m |
| 4 | Screw Driver | 1 | 12 | 5-50ul pipette | 1 |
| 5 | Cd HCL | 1 | 13 | 200ul pipette tip(1000pc/bag) | 1 |
| 6 | USB(manual and software) | 1 | 14 | 6*10mm cooling water tube | 6m |
| 7 | 5A fuse | 3 | 15 | Graphite furnace camera connection cable | 1 |
| 8 | Graphite tube | 5 | 16 | ||
