Product Introduction
The AA-3600 atomic absorption spectrometer is a large precision analytical instrument that integrates background correction with a deuterium hollow cathode lamp, self suction background correction with atomic absorption method, pneumatic hydride atomic absorption method, graphite furnace atomic absorption method (with optional automatic sampler), and atomic emission method. The professors and senior engineers who participated in the development of this instrument are experts who have been engaged in the atomic absorption analysis instrument industry for many years, both domestically and internationally. As a result, the AA-3600 flame graphite furnace integrated machine developed has excellent performance, sensitivity, and detection limit indicators that reach the international advanced level.
This instrument can be widely used in geological, metallurgical, mining, petroleum, chemical, mechanical, agricultural, food, pharmaceutical, health, epidemic prevention, environmental protection and other fields. It is an essential high-precision analytical instrument for research institutes, universities, and related enterprises.
main features 
The integrated structural design of flame atomizer and graphite furnace atomizer can be fully automatically switched and optimized to the optimal state, meeting the diverse needs of customers
Adopting a six lamp holder automatic switching device to meet various element testing needs
Automatic wavelength scanning and peak finding, automatic switching of spectral bandwidth, automatic adjustment of negative high voltage and lamp current, automatic ignition and cleaning system of the instrument, systematic or single setting, flexible and simple operation
Using a semi transparent and semi reflective device, the deuterium lamp is used to button the background, and the energy of the sample beam and background beam is automatically balanced
Unique graphite furnace design, uniform heating of graphite tubes, reducing chemical interference and memory effects, can improve atomization efficiency, ensure analysis accuracy, and prolong the service life of graphite tubes
Dual temperature control of internal and external air, with 20 segments of linear or nonlinear heating to ensure the highest sensitivity of the tested element; The furnace is enriched and concentrated up to 20 times, and the temperature of the inner wall of the graphite tube is monitored by a photoelectric sensor. The maximum temperature can be raised to 3000 ℃/s
Acetylene gas leakage alarm, real-time flame monitoring, automatic shutdown protection, automatic power-off protection in case of other abnormalities, cooling water flow rate, graphite furnace temperature control, protective gas pressure and other safety protection systems to ensure the safety of operators and instruments
There are hydride generators, electric quartz tubes, pneumatic molecular absorption rapid samplers, pulse stable flow micro samplers, automatic samplers, different types of graphite tubes and atomizers available for selection to meet the different needs of customers
Host:
Light source: Element hollow cathode lamp
Lamp holder: Six lamp holders automatically switch
Lamp current: Powered by dual circuit stable current power supply
Optical system: imported 1800/mm gratings
Wavelength range: 190-900nm
Wavelength accuracy: ± 0.1nm
Wavelength repeatability: ≤ 0.05nm
Spectral bandwidth: 0.1, 0.2, 0.4, 1.0, 2.0nm, five levels automatic switching
Baseline drift: ± 0.004A/30min
Absorbance range: 0.001~2.000, 0.0001~2.0000
Detector: High sensitivity imported photomultiplier tube
Background correction: Deuterium lamp background correction, self suction background correction
Flame system:
Burner: all titanium combustion head
Nebulizer: Metal coated glass high-efficiency atomizer
Ignition method: automatic ignition
Characteristic concentration: 0.02 μ g/mL/1% (Cu)
Detection limit: ≤ 0.002 μ g/mL (Cu)
Repeatability: RSD ≤ 1.0%
Safety: gas leakage alarm, real-time flame monitoring, and automatic power outage in case of abnormalities
Graphite furnace system:
Temperature range: room temperature~3000 ℃
Temperature control methods: power heating and light controlled high-power heating
Program temperature control: Automatic temperature control up to 20 stages, with concentration in the furnace up to 20 times
Characteristic quantity: 0.4 × 10-12g (Cd)
Detection limit: 0.5 × 10-12g (Cd)
Repeatability: RSD ≤ 3.0%
Cooling water: optional cooling water circulation system
Safety: Safety protection systems such as cooling water flow rate, graphite furnace temperature control, and protective gas pressure
Data processing:
Measurement methods: flame atomic absorption method, graphite furnace method, hydride method, emission method
Concentration measurement methods: standard curve method, standard addition method, absorbance method
Repeated measurement times: Any number of times, can calculate standard deviation, relative standard deviation, accuracy, etc