Features of DW-AA4730FG AAS

• Permanently equipped with both flame and graphite furnace atomize, switched by computer. Automatically determine the best position. Vertical 8 light stand, rotating light search by computer control, preheating and optimizing use conditions.
• Total reflection optical system, using two aspherical optical elements to strictly correct astigmatism, effectively improve the monochromator entrance slit energy. Automatic wavelength scanning and peaking.
• With self-absorption correction and deuterium lamp correction 2 background deduction methods. when the background signal 1A, deuterium lamp background correction capability >60 times.
• Automatically cut off the gas when the gas pressure is insufficient, the power supply is interrupted. The flame is turned off or the combustion head is not matched, to ensure safety. Equipped with HD camera, the automatic graphite furnace injection needle position adjustment is more convenient, the whole process of graphite furnace injection visualization.
• Equipped with waste liquid level sensor to ensure data stability and safe use.

Specifications of DW-AA4730FG AAS

Monochromator Type	Czerny – turner	Grating	1800 lines/mm
Grating Flare Wavelength	250nm	Wavelength Range	190nm ~900nm
Bandwidth	0.1 nm、0.2nm、0.4nm、0.7nm、1.0nm、2.0nm automatic	Spectral Bandwidth Deviation(Cu)	≤0.2nm +0.02nm(bandwidth 0.2nm)
Wavelength Repeatability	≤0.03nm	Absorbance Range	-0.1~2.5a
Baseline Stability(Cu)	≤0.002A/15min (Static test)	Characteristic Concertration (Cu)	0.02μg/ml/1%
Lod(Cu)	0.003μg/ml	Wavelength indication Error	±0.15nm
Measurement Repeatability(Cu)	≤0.45%(fame method)	Graphite Furnace TemperatureAccuracy	±10 ℃
Measurement LOD	Cd≤0.2×10-12g (GF method)	Temperature Control	20-3000℃,maximum heating rate >2000℃/s
Heating Steps	20 steps	Slope Heating Time	0s-999s
Holding Heating Time	1s ~ 999s (The sum of the slope heating time and the holding heating time is not greater than 999s)	Measurement Repeatability	Cd≤2%  (Use automatic sampler and platform graphite tube )
Characteristic Mass	Cd≤0.5pg	Lamp Stand	8 lamps
Linear Error	Cd ≤10%	Graphite Furnace Heating Method	Longitudinal flux induction heating
Burner	Titanium burner	Atomizer	High efficiency glass atomizer
Premix Chamber	Explosion-proof	Power	AC220v±22v 50hz±0.5hz, 6600W
Host instrument	850mmx637mmx575mm

Software Functions of DW-AA4730FG AAS

• Method save and call: Different experimental methods and parameter Settings can be saved. This makes the method switching more convenient during the analytical test, and can also improve the consistency and repeatability of the analytical test.
• Concentration calculation: standard curve method and standard addition method are provided. Standard curve method can choose single point calibration or multi-point calibration, multi-point calibration can choose 1,2, 3 functions and mutual conversion, support up to 30 concentration points repeated 20 times of standard sample calibration, automatic calculation of average value, standard deviation (SD) and relative standard deviation (RSD).
• Sample information table editing and data processing functions: provide weight factor, volume factor, dilution factor and other sample information editing, can calculate the solid sample concentration (sample content) directly, improve the integrity of the experiment report.
• Data export and report generation: software supports data export capabilities, which can be processed into excel formats, which facilitate statistics and further analysis. At the same time, the software also provides the reporting generation function which allows users to generate complete experimental reports as required, and the storage and printing is used for recording and filing.

Accessories of DW-AA4730FG AAS

Standard Accessories

Oil-free air compressor	1pc
Hollow cathode lamp (Cu)	1pc
High efficiency glass atomizer	1pc
Titanium burner 100mm	1pc
Oxygen pressure reducing valve	1pc
Acetylene pressure reducing valve	1pc
Air water filter	1pc
Pyrolytic graphite tube	1pc
Platform graphite tube	1pc
Micro pipettor	1pc

Optional Accessories