Wavelength range:190nm--900nm. Monochromator:Aberration poor C-T monochromator. Spectral bandwidth:0.1,0.2,1.0,2.0nm,fourth gear can be automatically selected. Accuracy of the wavelength:±0.25nm. Receptivity of the wavelength:0.15nm. Base line stability:0.004A/30min. Detector:photomultiplier tube. Resolution:when spectral bandwidth is 0.2nm,Separate manganese double wire(279.5nm and 279.8nm) and valley peak energy ratio<20% 2. Flame Atomic System Characteristic viscosity:(Cu)0.03μg/ml/1% Checking limit :(Cu) 0.006μg/ml Burner:100mm (titanium metal burner),Air-cooled pre-mixed type. precision:RSD≤1% Sprayer:Efficient glass atomizer Spraying room:Corrosion-resistant material spray chamber. Position adjustment:flame burner's best height and before and after location can be adjusted, the flame and hydride can be exchanged within 60s. Safety system:can automatically cut off the gas when the pressure is not enough, the power is off, flame out and unconformity of the burner. 3. Analytical System Measurement methods:air-acetylene flame method,hydride generator atomic absorption method oxygen rich acetylene flame method. Concentration calculation method:Standard curve method(1~3times),automatically fit,Standard join law. Repeat measurement times:1~20 times,to calculate the average,Standard deviation and relative standard deviation can be given The results of print:parameter printing,the results of data printing, graphic printing,summary report.