Drawell DW-AA2081 Atomic Absorption Spectrophotometer

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Instruments meet the basic parameters of GB/T 6780-93 standard(requirements of the basic parameters of atomic absorption spectrophotometer).

I. Performance of Drawell DW-AA2081 Atomic Absorption Spectrophotometer:

Wavelength range	190nm——900nm
Grating groove density	1800 lines
Monochromator	Czerny-Turner
Spectral Bandwidth	0.2,0.4,1.0,2.0nm,multi-speed automatic switching
Wavelength accuracy	±0.25nm
Wavelength repeatability	0.05nm
Baseline drift	0.002A/30min
Detector	Wide spectral range photomultiplier tube
Resolution	Can distinguish Manganese light between light 279.5nm and 279.8nm two-manganese and troughs of energy between the two lines should be less than 20%

Lamp holder	4 lamp auto switch (6 lamp optional)
Lamp power supply mode	400Hz square wave pulse
Lamp current adjustment range	0 – 10mA average current

Characteristic concentration (Cu)	0.025μg/ml/1%
Detection limit (Cu)	0.006μg/ml
Burner	100mm single slit titanium burner, air-cooled pre-mixed
Precision	RSD≤1%
Sprayer	Set of efficient metal glass spray
Room Spray	Corrosion-resistant plastic spray chamber
Safety measures	With a variety of automated security features, acetylene gas leakage alarm, shut down the system

Measurement	Air – acetylene flame method, hydride generation atomic absorption spectrometry, oxygen enriched air – acetylene flame method
Concentration calculation	Automatic working curve fitting, automatic calibration sensitivity automatically calculated concentration levels.
The number of repeated measurements	1 to 99, automatic calculation of average concentration, standard deviation, relative standard deviation.
Print results	Print the final stages of test data or analysis. The results can be exported into Excel worksheet.
Software Environment	Windows XP/Vista operating system, the English professional software