GFAAS Graphite Furnace Atomic Absorption Spectrometer
Features
One instrument realizes two detection methods
After selecting the method, the flame/graphite furnace atomizer automatically switches and adjusts its position without user intervention
8 element lights can be installed at the same time
After setting the element lamp, the working lamp is automatically switched to the position to wait for detection, and the preheat lamp starts to preheat
Constant power control, with better temperature repeatability
Graphite furnace temperature: room temperature~3000ºC
optical system
| Wavelength range |
185nm~910nm Automatically adjust |
| Grating line density |
1800line/min |
| monochromator |
Aseismic Czerny-Turner monochromator |
| The width of a spectral band |
0.1,0.2,0.4,1.0,2.0nmMultiple gears switch automatically |
| Wavelength accuracy |
±0.1nm |
| Wavelength repeatability |
<=0.5nm |
| Baseline drift |
Static ±0.002A/30min,
dynamic ±0.006A/30min |
| Detector |
Wide spectral range photomultiplier tube |
| Resolution degree of precisionratio |
Able to resolve the emission peaks of manganese HCL at 279.5nm and 279.8nm. The energy at the valley between the two peaks is below 20%. |
Spectrum systems
| lampholder |
8 lampholders, Auto switch |
| Lamp power supply mode |
400Hz square-wave pulse |
| Current regulation range of the lamp |
2~10mA average electric current |
Atomization system
| Flame analysis method |
| Detection limit (cu) |
<0.006 ug/ml(air-acetylene) |
| Characteristics of the concentration(cu) |
<0.015 ug/ml/1% |
| Combustor |
100mm full titanium burner |
| href="#/javascript:;" Degree of precision |
RSD Cu<0.5%, Ba<1.0% |
| Nebulizer |
Metal-covered high efficiency glass sprayer |
| Atomizing chamber |
Corrosion resistant material atomizing chamber |
| Subtract background |
Flame method has d2 lamp and self-absorption subtraction function |
| Security arrangement |
With a variety of automatic safety protection functions,With acetylene leakage alarm, automatic shutdown system,and so on. |
| Flame free(graphite furnace) analysis method |
| Characteristic quantity(Cd) |
<0.5*(10-12)g |
| Detection limit (Cd) |
<0.4*(10-12)g |
| Degree of precision |
RSD<=2% |
| Heating temperature range |
Indoor temperature~2800ºC |
| Heating method |
Advanced vertical constant power graphite furnance heating mode |
| Way of temperature rise |
ramped temperature program,stepped temperature program,Maximum power heating controlled by PID, user can set PID control curve temperature rise arbitrarily. |
| Temperature control accuracy |
<1% |
| Hydride generation--atomic absorption method |
Flame analysis method
| Measuring method |
Air-acetylene flame method ,hydride generator method |
| Concentration calculation method |
standard curve method, standard addition method,interpolation technique , |
| Number of repeated measurements |
1~99times,automatic calculation of average amount,content,standard deviation,relative
Standard deviation |
| Print Results |
Print test data or final analysis report,the results can export word worksheet. |
| Software environment |
Windows XP/ windows 7 operating system,chinese professional software. |
Flame free analysis method
| Measuring method |
Standard addition method, interpolation method |
| Graphite furnace heating and temperature control |
Using constant power heating temperature control method (non-light control temperature measurement feedback control) |
| Background correction |
D2 lamp background correction greater than 30 times,Automatic absorption
buckle background greater than 30 times. |
| Number of repeating measurements |
1~30 times,calculate the amount of average ,provide the standard deviation and relative standard deviation. |
| Print results |
Print test data or final analysis report,the results can export word worksheet. |
| Software environment |
Windows XP/ windows 7 operating system,chinese professional software. |
Instrument parameter
| Power supply |
AC 220V/50HZ |
| Power |
150VA |
| Net weight of instruments |
55kg |
| Rough weight of instruments |
80kg |
| Instrument volume |
111mm(crosswise)*400mm(depth)*500mm(height) |
| Packing volume |
1350mm*(crosswise)*600mm(depth)*850mm(height) |
| Operating ambient temperature |
10~35ºC |
| Working environment humidity |
<=80% |
No accident shipping term:
DHL: 5-7 working days;
UPS: 7-9 working days;
FedEx: 7-9 working days;
EMS: 25-30 working days;
China Post: Depends on ship to which country;
Sea: Depends on ship to which country
Q1: Are you trading company or manufacturer ?
A: We are manufacturer and do both OEM and ODM. We have our own R&D team.
Q2: How to order?
A: Send inquiries → Reply you quotations → Discuss details → Confirm samples →
Deposit → Mass production → Cargo ready → Balance/Delivery → More cooperations.
Q3: What is your payment method ?
A: We accept T/T, Western Union, Paypal and MoneyGram, those depend on specific cases.
Q4: How long is your delivery time?
A: Usually 1-3 working days for products in stock. If we do special offer, it usually takes
4-6 weeks. Also delivery time is according to your quantity of order.
Q5: How to transport?
A: DHL, UPS, FedEx, TNT, EMS, China Post and Sea are available.Also other shipping ways are
available. Please feel free to contact us for other shipping ways.
Q6: How is your warranty service?
A: We do strict test before shipping and guarantee for 365 days. If quality problem you
could send us pictures or video clips about problem. Then we deal with the problem ASAP.
GFAAS Graphite Furnace Atomic Absorption Spectrometer
Audited Supplier 
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