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High Precision Automatic Graphite Furnace Atomic Absorption
Spectroscopy / Agriculture detection
Specifications:
Mainframe | |
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 opticaloptimization 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) |
≤±0.005A/30min (Dynamic) | |
Absorbance Range: | 0-4A |
Detector: | imported photomultiplier tube |
Flame Analytical System | |
Burner Head: | full titanium combustion head, 50mm or 100mm generalcombustion 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 alarmtemperature overheating protection | |
Autosampler Graphite Furnace | |
Sample Tray: | 70 sample cups, 6 reagent cup |
Sample Volume: | 1-100μl |
The Smallest Lincrement: | 0.1 μl |
The Volume of Sample | better than 1%(at the time of 10mL-100mL) |
Repeatability Volume | |
Repeated Sampling Frequency: | up to 99 Times |
Cleaning and Waste | each 500mL |
Container Volume |
Description:
AA-1800H 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. AA-1800 atomic absorption spectrometer can be used
for analysis of complex samples ,full automatic multifunctional,
various analysis methods can automatically switch, unmanned
automatic analysis
Applications:
AA-1800H atomic absorption spectrophotometer is now widely used in
scientific research,quality control,
disease control, environmental protection, metallurgy,
agriculture,chemical industry .Hardware and
software design of innovation to ensure the accuracy,safety, ease
of use in the analysis of samples,
equipment maintenance, simple and convenient
Competitive Advantage:
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 6 socket configuration
six independent lamp power supply, can be respectively preheating
Polymer spray chamber
● Polymer materials corrosion spray chamber, acid and alkali
resistance, includinghydrofluoric acid, either organic or inorganic
solution can be the highest sensitivity andstability
Titanium burner
● Titanium burner, the optional 50mm and 100mm burner, air cooling
pre mixed type,corrosion resistant, resistant to high salt, greatly
improve the analysis efficiency andaccuracy of the flame
Automatic analysis
● 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, automaticwavelength
scanning and searching peak
Software function
● 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; furnaceenriched 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
testsensitivity 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 lampand prolongs the
service life, has excellent stability. Deuterium lamp background
signalfor 1A, background correction ability > 50 times
Intelligent analysis
● Greart 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 safetyprotection function
Automatic sampler
● Integrative design of graphite furnace, using high precision
syringe, lowest in 0.5μl samples, with intelligent online dilution
and concentration function