Introduction：
Atomic absorption spectrophotometer is one of the traditional products of our company. More than 20 models have been put into the market. The instrument has stable performance, high degree of automation, clear and smooth software interface, simple and flexible operation.
Applicable fields:
Food hygiene, geology, metallurgy, agricultural testing, chemical environmental protection, water quality testing, pharmaceutical commodity inspection, education and research, etc.
Detection elements:
It is mainly used for more than 70 elements such as gold, silver, copper, lead, zinc, manganese, potassium, sodium, calcium, magnesium, iron and cadmium in food, surface water, groundwater, drinking water and other samples.
Product features:
- Background correction of deuterium lamp.
- Automatic rotating lighthouse; eight lamps can be preheated simultaneously.
- Built-in graphite furnace power supply; controlled by current and voltage vector to ensure high reproducibility of graphite furnace’s temperature rise.
- Heating rate: ≥2000℃/s.
- Safety monitoring measures: graphite furnace body temperature monitoring, gas pressure monitoring, graphite tube fracture or unclamp monitoring, transformer temperature monitoring.
- Patented graphite furnace automatic sampler with accurate positioning and high injection accuracy.
Optical system:
- T-type monochromator; grating ruling density 1800 lines/mm, focal length 270mm, blazed wavelength 250nm; short optical path, suitable for element measurement in ultraviolet region.
- Automatic switching of spectral bandwidth, four grades of 0.2, 0.4, 1.0 and 2.0nm are optional.
- Spectral bandwidth deviation: ≤±0.02nm;
- Spectral range: 190nm~900nm.
Atomization system:
- Temperature range: room temperature to 3000 ℃.
- Temperature control accuracy: 2000℃/s, ≤0.5%.
- Heating rate: ≥2000℃/s.
- Temperature control program: 10 heating procedures(maximum); 3 heating modes(step, slope and hold).
- Heating mode: longitudinal heating.
Safety function:
- Internal and external gas pressure monitoring.
- Over temperature protection of power transformer.
- Over temperature protection of body furnace.
- Graphite furnace fracture alarm.
Graphite furnace automatic sampler:
- Number of sample position: 52 (including three 5mL positions).
- Injection volume: 2μL-100μL.
- Injection accuracy(20 μL): ≤0.5%.
- The working curve can be configured automatically, and matrix improvers can be added freely.
