AA-1800H six lamp holder flame graphite furnace integrated atomic absorption spectrometer Introduction
AA-1800 Atomic Absorption Spectrometer is developed with the latest international technology and experts from well-known universities in China. It has decades of experience in R&D and application of spectroscopic instruments. The product includes flame, graphite furnace and hydride generation system, can be configured with a variety of accessories, flexible configuration options to meet the needs of different levels of customers. The fully automatic multi-function AA-1800 Atomic Absorption Spectrometer can perform complex sample analysis, and various analysis methods can be automatically switched to achieve automatic analysis without human.
AA-1800 atomic absorption spectrometer is widely used in scientific research, quality inspection, disease control, environmental protection, metallurgy, agriculture, forestry, chemical and other industries. The innovative software and hardware design ensure the accuracy, safety and ease of sample analysis. Simple and convenient. Features
Graphite furnace temperature control
Double temperature control of internal and external gas, 20-step linear or nonlinear temperature rise, ensuring the highest sensitivity of the element to be tested; enrichment in the furnace for 20 times, longitudinal light control to monitor the inner wall temperature of the graphite tube, up to 3000 °C / s.
High-tech indicators
The sensitivity of elemental test of AA-1800 atomic absorption spectrometer reaches the international best level, the sensitivity is ≤0.015μg/mL/1%; the baseline drift is less than 0.003Abs/30m, and the stability is better than 0.005Abs/4h;
Background correction system
The background correction is carried out by using the advanced hollow hollow cathode lamp and self-absorption buckle background to eliminate the interference of molecular absorption during low-level measurement, reduce the emission noise of the xenon lamp, prolong the service life and have excellent stability. When the background signal of the xenon lamp is 1A, the background capacity is deducted by >50 times;
Intelligent analysis
The intelligence is very strong, humanized design, the flame and graphite furnace atomizer are automatically switched, the graphite furnace atomizer is automatically optimized, the flame height is automatically set, the automatic ignition is performed, the horizontal position is automatically optimized, and the system automatically sets the gas flow. In case of power failure, misoperation, acetylene leakage, etc., the system will automatically start the safety protection function;
Autosampler
Integrated with graphite furnace design, high-precision syringe, minimum 0.5μl sample, intelligent online dilution and concentration. Technical Parameters
Host
Model No. : AA-1800H
Light source : Single or multi-element hollow cathode lamp
Lamp holder: Automatically switch between six lamps or more, fully automatic collimation
Lamp current : pulsed power supply
Optical system : Large area 1800 strips / mm engraved grating, fully enclosed optical system
Wavelength range: 190-900nm, automatic search for peaks, one-button optical optimization
Wavelength accuracy: ≤0.15nm
Wavelength repeatability : ±0.1nm
Spectral bandwidth: 0.1, 0.2, 0.4, 1.0, 2.0 nm automatic setting
Baseline drift: Static ≤±0.002A/30 minutes, dynamic ≤±0.005A/30 minutes
Absorbance range : 0-4A
Detector : Imported photomultiplier tube
Flame system
Burning head : All titanium burner, 50mm or 100mm universal burner
Spraying chamber : Polymer explosion-proof anti-corrosion spray chamber
Nebulizer : High efficiency glass atomizer, can also be customized
Ignition method : Microcomputer control, automatic ignition
Gas Control : Fully Automatic Gas Control System
Characteristic concentration : 0.015μg/mL/1% (Cu)
Detection limit: 0.002μg/mL (Cu)
Precision : RSD≤0.5%
Safety : Multiple protection measures such as gas leakage alarm, anti-tempering automatic protection, abnormal automatic power failure, etc.
Graphite furnace system
Heating method : Longitudinal heating
Temperature control method: Longitudinal optical temperature control monitors the inner wall temperature of graphite tube
Temperature range : room temperature to 3000 ° C
Program temperature control: Fully automatic temperature control up to 20 steps, enrichment in furnace for 20 times
Characteristic quantity : 0.5×10-12g(Cd)
Detection limit: 0.4×10-12g(Cd)
Precision : RSD≤3%
Cooling water : optional cooling water circulation system
Safety : Damage to graphite tube, water flow, air pressure, etc.; water temperature overheat protection
Graphite Furnace Autosampler (optional)
Sample tray: 70 sample cups, 6 reagent cups
Injection volume: 1-100μl,
Minimum increment: 0.1 μl,
Injection volume repeatability : better than 1% when the volume is between 10μl and 100μl
Repeat injection times: up to 99 times
Cleaning and waste container volume : 500mL each
Background correction
Xenon background correction : Correctable 1A background
Self-priming background correction : Correctable 1A background
data processing
Measuring method: flame method, graphite furnace method, hydride-atomic absorption method
Concentration calculation method: Standard curve method (1 to 3 times curve), automatic fitting, standard addition method
Repeat measurement times: 1-99 times, calculate the average value, give the standard deviation and relative standard deviation
Result printing : Parameter printing, data result printing, graphic printing, export WORD, EXCEL document
Introduction
AA-1800 Atomic Absorption Spectrometer is developed with the latest international technology and experts from well-known universities in China. It has decades of experience in R&D and application of spectroscopic instruments. The product includes flame, graphite furnace and hydride generation system, can be configured with a variety of accessories, flexible configuration options to meet the needs of different levels of customers. The fully automatic multi-function AA-1800 Atomic Absorption Spectrometer can perform complex sample analysis, and various analysis methods can be automatically switched to achieve automatic analysis without human.
AA-1800 atomic absorption spectrometer is widely used in scientific research, quality inspection, disease control, environmental protection, metallurgy, agriculture, forestry, chemical and other industries. The innovative software and hardware design ensure the accuracy, safety and ease of sample analysis. Simple and convenient.
