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Flame & Graphite
Flame & Graphite
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
1. Total reflection optical system can
reduce energy loss to ensure better signal-to-noise ratio and lower detection
limit.
2. 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.
3. Automatic pneumatic control module
ensures the device safety and accuracy and protects the operator and device
better.
4. 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.
5. Automatic burner adjustment ensures the
maximum sensitivity, you can raise or lower the burner according to the
reading. Flame detection enhances the device safety.
6. Modular design for optical system and
circuit makes the maintenance and repair simple.
7. Professional, automatic and easy to
operate full operation RGWIN AAS software under MS window system and QA/QC
function.
8. 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.
9. Safety protection system: flame monitoring
(acetylene will be turned off automatically if there is any abnormality and
show warning information), unique acetylene protector (warning information will
be shown if the leak acetylene concentration is beyond the alert
concentration), pressure monitoring (the flame will not work if the air or
acetylene pressure is not normal, the graphite furnace will not work if the
argon pressure is too high or too low), graphite tube installation
self-inspection.
Flame & Graphite Furnace AAS Specification
|
Model |
AA6018 |
AA6028 |
|
|
Optical System |
Optical Type |
Single beam |
Double 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 |
±0.2 nm |
±0.15 nm |
|
|
Wavelength Repeatability |
±0.1nm |
±0.05nm |
|
|
Lamp Holder |
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) |
≤0.003A/30 min |
≤0.002A/30 min |
|
|
Dynamic Baseline Drift (Cu) |
≤0.005A/15 min |
≤0.004A/15 min |
|
|
Background Correction |
Deuterium (D2) Background Correction and Self-absorption Background Correction |
||
|
Flame Analysis |
Characteristic Concentration |
Cu≤0.035ug/ml |
Cu≤0.02ug/ml |
|
Detection Limit |
Cu≤0.006ug/ml |
Cu≤0.004ug/ml |
|
|
Repeatability (Cu) |
RSD≤0.6% |
RSD≤0.5% |
|
|
Acetylene Flow Control |
Auto 12-level |
Auto 12-level |
|
|
Air Flow Control |
Auto 4-level |
Auto 4-level |
|
|
Nebulizer |
High efficiency glass |
||
|
Burner Adjustment |
Automatic up and down |
||
|
Burner Head |
Titanium alloy 100mm burner for air/acetylene operation |
||
|
Premix Chamber |
Corrosion resistant |
||
|
Safety Protection |
Flame sensor, gas leak sensor, gas pressure sensor |
||
|
Graphite Furnace Analysis |
Characteristic Concentration |
Cd≤0.6pg , Cu≤20pg |
Cd≤0.5pg , Cu≤20pg |
|
Detection Limit |
Cd≤1.0pg , Cu≤25pg |
Cd≤0.8pg , Cu≤25pg |
|
|
Repeatability (Cu) |
RSD≤3% |
RSD≤2.5% |
|
|
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 |
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 |
12 |
Acetylene pressure reducing valve connector |
1 |
|
2 |
Power Cable |
1 |
13 |
5A fuse |
3 |
|
3 |
Data Cable |
1 |
14 |
Argon pressure reducing valve connector |
1 |
|
4 |
Screw Driver |
1 |
15 |
Graphite tube |
5 |
|
5 |
Cu HCL |
1 |
16 |
High power socket |
1 |
|
6 |
Cd HCL |
1 |
17 |
6*4mm argon tube(transparent) |
10m |
|
7 |
Air Compressor |
1 |
18 |
5-50ul pipette |
1 |
|
8 |
6mm acetylene tube(orange) |
10m |
19 |
200ul pipette tip(1000pc/bag) |
1 |
|
9 |
6mm air tube(transparent) |
10m |
20 |
6*10mm cooling water tube |
6m |
|
10 |
USB(manual and software) |
1 |
21 |
Graphite furnace camera connection cable |
1 |
|
11 |
Drain Tube |
2m |
22 |
Ignition filament |
5 |
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