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Atomic Absorption Spectrometer AAS
Beijing Dongxi Electronics AA7000 series atomic absorption spectrophotometer# 160; amp;# 160; Instrument Introduction# 160;: amp;# 160; amp;# 160;
Product details
Beijing Dongxi Electronics AA7000 SeriesAtomic Absorption Spectrometer AAS
Instrument Introduction:
Optical system suspension design, vibration and environmental temperature changes do not affect instrument stability.? The world has integrated flame atomizers/graphite furnace atomizers, graphite furnace power supplies, optical and electronic detection systems all into the same instrument body, making it one of the world's most compact AAS structures.
Domestic all titanium atomization combustion system. Adopting advanced aerospace technology, the precision cast industrial pure titanium atomization chamber and combustion head have excellent corrosion and oxidation resistance, high temperature resistance, and long service life.
The country is the first to adopt 1800/mm diffraction gratings, which have sufficient energy and high resolution.
The single beam optical system also has sufficient energy to achieve low detection limits for elements such as arsenic and selenium.
Carefully designed tritium lamp buckle background technology and self absorbing full band buckle background technology, the calibration results are more accurate. Optimized power technology extends the lifespan of the lamp.
A safe and reliable control alarm device ensures overcurrent protection for hollow cathode lamps, gas/protective gas under pressure protection, gas leakage alarm, graphite furnace overheating protection, and flame abnormal state protection.
Atomic Absorption Spectrometer AASTechnical Parameter
Spectral system:
Wavelength range: 190nm-900nm
Spectral bandwidth: 0.1, 0.2, 0.4, 1.0, 2.0nm with five automatic switching modes
Monochromator: C-T grating monochromator
Wavelength accuracy: ± 0.2nm
Wavelength repeatability: ≤ ±0.1nm
Grating: 1800 lines/mm
Static baseline stability: ≤ ±0.002A/30min
Dynamic baseline stability: ≤ ±0.004A/30min
Flash wavelength: 250nm
Resolution: better than 0.3nm
Background correction:>50x
Flame analysis:
Cu characteristic concentration: ≤ 0.02μg/ml
Detection limit: ≤ 0.005μg/ml
Precision RSD%: ≤ 1%
Combustion head: 50mm and 100mm interchangeable all titanium combustion head, all titanium atomization chamber
Position adjustment: Adjust the height and angle to the best of your ability, and complete the flame/hydride replacement within one minute
Data processing:
Measurement methods: flame absorption method, flame emission method, graphite furnace method, hydride method.
Analysis methods: linear equation, nonlinear equation, standard addition method.
Print output: Calibration curves, signal spectra, instrument conditions, analysis parameters, and analysis results can all be automatically stored and printed.
Integrated host built into graphite furnace power supply:
Size: 880 (length) x 540 (width) x 450 (height) mm, 125kg
Power supply:~ 220V 50Hz single power supply host 200W graphite furnace 4KW
Complete set:
1. Host (model optional)
2. Computers, printers, software, and anti control interfaces
3. Gas source: air compressor, high-purity argon gas, high-purity acetylene gas (preparation)
4. Element lights (selected according to user needs)
5. Spare parts and tools
Main features:
1. Fully automatic control and data processing of instruments by PC
2. Automatic wavelength positioning, automatic slit switching, automatic setting of lamp current and gain. These tasks can be completed within 40 seconds, which is at the current international advanced level
3. The six lamp turret rotating table is fully controlled by a computer, with fast positioning and automatic selection of element lights. Truly achieve automatic and ordered analysis of up to six element contents in the sample.
4. Automatic ignition, automatic gas flow control, and automatic leakage alarm.
5. Optional complete laughing gas/acetylene gas system, analyzing more than 30 high-temperature elements
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