AAS Spectrophotometer AA-1800H, 6-lamps, Flame-Graphite furnace
AA-1800 atomic absorption spectrophotometer is absorted the latest international technology and famous universities jointly complete R & D, application experience with decades of spectral instrument. The products include the flame, graphite furnace and hydride generation system, can be equipped with various accessories, flexible configuration program can meet different customer demand.
High precision automatic optical system
1800 / mm reticle (dispersion rate) large area grating monochromator, a new type self collimation, all lenses are quartz coating, the detection range and the stability of optical broad to ensure the precision of analysis. Automatic 8 socket configuration 8 independent lamp power supply, can be
Polymer spray chamber
Polymer materials corrosion spray chamber, acid and alkali resistance, including hydrofluoric acid, either organic or inorganic solution can be the highest sensitivity and stability
Titanium burner, the optional 50mm and 100mm burner, air cooling pre mixed type,corrosion resistant, resistant to high salt, greatly improve the analysis efficiency and accuracy of the flame
It can automatically accomplish safety ignition, extinction and switching, reliable structure,low fault rate, thus ensuring the sensitivity and reproducibility of the flame method.
The light source system six lamp automatic conversion, can be directly used high performance hollow cathode lamp, improve the sensitivity analysis of the flame, the automatic
adjustment of the power supply parameters and the beam
position, automatic wavelength scanning and searching peak
High intelligent software, powerful function, friendly interface English operation.Automatic instruments and additional control, flame, graphite furnace operating mode can be switched automatically, automatic optimization, automatic dilution; mouse operation, automatic setup menu data and correction method
Graphite furnace temperature control
Gas dual temperature control inside and outside, 20 order linear or nonlinear heating, to ensure that the measured
elements has the highest sensitivity; furnace enriched up to 20 times, the longitudinal optically monitoring the graphite tube wall temperature, maximum temperature to 3000 degrees centigrade.
High technology index
AA-1800 atomic absorption spectrophotometer elements test sensitivity meet international best level,sensitivity of less than or equal to0.015μg/mL/1%; baseline drift is less than 0.003Abs/30m, the stability is better than 0.005Abs/4h
Background correction system
Using deuterium hollow cathode lamp advanced and self absorption background deduction of background correction, to eliminate the interference of molecular absorption of low content determination, reducing the noise emission of
deuterium lamp and prolongs the service life, has excellent stability. Deuterium lamp background signalfor 1A,background correction ability > 50 times
Great intelligence, humanized design, flame and graphite
furnace atomizer automatic switching, automatic optimization of graphite furnace atomizer, automatically set the flame height adjustment, automatic ignition, automatic optimization of the horizontal position, system automatically sets the gas flow. In the case of power failure, misoperation, acetylene leakage, the system will automatically start the safety protection function
Automatic sampler (optional)
Integrative design of graphite furnace, using high precision syringe, lowest in 0.5μl samples, with intelligent online dilution and concentration function.
Model AA-1800H Light Source ≤6 lamps automatic turret, automatic alignment Power Supply 110/220V (+5% ~ -10%), 60/50Hz; 5000VA Lamp Current pulsed power supply Optical System large 1800 /mm grating ruling, full closed optical system Wavelength Range 180nm-900nm, Automatically peak find, a key optical optimization function Wavelength Accuracy ≤0.15nm Wavelength Repeatability ±0.1nm Spectral Bandwidth 0nm、0.2nm、0.4nm、1.0nm、2.0nm (5 steps with automatic changeover) Baseline Stability ≤±0.002A/30 min (Static)
Absorbance Range 0-4A Flame Analytical System Detector imported photo multiplier tube Burner Head full titanium combustion head, 50mm or 100mm general combustion head Atomization Chamber polymer explosion-proof spray chamber Nebulizer atomizer efficient glass atomizer, can also be customized Ignition Type microcomputer control, automatic ignition Gas Control automatic gas control system Detection Limits(Cu) 0.002μg/mL Precision RSD≤0.5% Graphite Furnace Analytical System Heating Mode vertical heating Temperature Control Method vertical optical temperature monitoring graphite tube wall temperature Temperature Range room temperature to 3000℃ The Program automatic temperature control up to 20 order Temperature Control the furnace enriched up to 20 times Characteristics Volume 0.5 × 10-12g (Cd) Detection Limit 0.4 × 10-12g (Cd) Precision RSD≤3% The Cooling Water can choose cooling water circulation system Safety the graphite tube damage, water flow
air pressure and other alarm temperature overheating protection
Autosampler Graphite Furnace (Optional) Sample Tray 70 sample cups, 6 reagent cup Sample Volume 1-100μl The Smallest Lincrement 0.1 μl The Volume of Sample Repeatability Volume better than 1%(at the time of 10mL-100mL) Repeated Sampling Frequency up to 99 Times Cleaning and Waste each 500mL