4520TF type atomic absorption spectrophotometer-Fornitore globale

1421, Building F1, Hejing Tianjun, Zhongxin Knowledge City, Jiulong Town, Huangpu District, Guangzhou City

performance index :

host:
Adopting multi lamp automatic switching turret to meet the continuous measurement requirements of copper, zinc, calcium, magnesium, iron, manganese, potassium and other elements

lighthouse:

Wavelength range: 190nm~900nm, Wavelength repeatability: ± 0.3nm (measured ± 0.1nm)

Band accuracy: Full wavelength ± 0.5nm (measured ± 0.2nm); Absorption range: 0~3(A)

Resolution: Able to separate manganese double lines (279.5nm and 279.8nm) with a spectral bandwidth of 0.2nm and a valley to peak energy ratio of less than 40%

Spectral bandwidth: 0.1nm, 0.2nm, 0.4nm, 1.Onm

Static baseline drift: ≤ 0.004A/30min (Cu)

Number of gratings: 1800/mm

D₂Background deduction method: When the background signal is 1A, the background deduction ability is ≥ 50 times that of the self absorbing background deduction method

Power supply: 200V AC

Flame system:
Acetylene air flame combustion head: 10Omm; Laughing gas acetylene flame burner: 50mm;

Atomization chamber: polypropylene coating;

Dynamic baseline drift of ignition: ≤ 0.006A/30min; Sensitivity (CU) characteristic concentration: ≤ 0.025 μ g/ml/1%;

Relative standard deviation of precision: ≤ 0.5% (Cu, absorbance>0.8A) (detection limit Cu ≤ 0.008 μ g/m |);

Safety system: automatically cuts off gas when pressure is insufficient, power supply is interrupted, engine is turned off, or the combustion head is not matched

Graphite furnace system :

Maximum heating rate: ≥ 2000 ℃/S; characteristic quantity: Cd ≤ 1 × 10^-12g Cu ≤ 1×10^-11g

Precision: Cu ≤ 3% (relative standard deviation); Cd ≤ 3% (relative standard deviation);

Size and weight: 550mm × 450mm × 300mm 65kg

Overcurrent protection; Low protection gas pressure alarm/protection; Low cooling water flow alarm/protection

Power supply: AC 220V Power: 7000W
Precautions for use:
No open flames are allowed in the workshop where the AA4520TF instrument is placed, and acetylene cylinders and instruments must not be in the same room
The room where acetylene cylinders are placed must be well ventilated and there must be no open flames in the room
When igniting the instrument, the acetylene flow rate should not exceed 3L/min, and ensure that there is a water seal in the waste liquid pipe before ignition
The output pressure of acetylene steel cylinder cannot exceed 0.12 megapascals
After the instrument is ignited, the operator should not stay away from the instrument
When turning off the engine, the acetylene cylinder should be closed first. After the flame is extinguished, press the 'detect' button set by the workstation flame atomizer parameters until the residual acetylene gas in the tube is emptied
If users want to make laughing gas acetylene, they must receive training from our technicians before using it
When starting up the 4510GF (graphite furnace), a high-power 220V power supply and water/gas are required. For safety reasons, operators should not stay away from the instrument after starting up