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            HOME>PRODUCTS>Atomic Spectrometer>A3 AAS

            A3 Atomic Spectrophotometer

            The A3 Atomic Absorption Spectrometer is a high performance automated instrument designed to meet the requirements of the modern laboratory. Due to its versatility and performance it can be used for a wide range of applications. 

            Three flame options are available to the user with the Air/Acetylene being the standard configuration. This flame can be used for nearly all standard elements while the N2O/Acetylene and the Air/LPG (natural gas) are available as an option for the more demanding of elements. All three flame configurations offer coded burner for full safety protection. 

            The graphite head is fixed into the optical path to maximize performance and eliminate drift. The temperature of the transversely heated graphite tube is accurately controlled by means of a precision feedback system. Pyrolytically coated platform tubes are supplied as standard to improve the performance and eliminate many analytical problems associated with this technique. 

            The flame and graphite furnace can be changed over by a simple selection in versatile AA Win Pro software.


            ◆ Easy to use, complete software control

             

            ◆ Integrated safety precautions for user protection

             

            ◆ Flexible configuration for a wide array of industrial apps

             

            ◆ Time-saving high speed analysis


            Model:Flame AA System-A3F, Graphite AA System-A3G, 

            Combined Flame and Graphite Furnace AA System-A3FG

            Spectrometer System
            Wavelength range190-900 nm
            Light sourceHollow cathode lamp (HCL), Deuterium Arc lamp (D2)
            Modulation Square wave pulse
            Modulation frequency

            100 hz self reversal (SR) background,

             400 hz Deuterium Arc (D2) background

            Monochromator 
            Grating 1800 grooves/mm diffraction grating
            Blazed wavelength250 nm
            Focus 300 nm
            Bandwidth 0.1, 0.2, 0.5, 1.0, 2.0, 5.0 nm
            Scan modeAutomatic
            Photometric typeSingle beam
            Wavelength accuracy±0.15 nm
            Wavelength resolution0.2 nm±0.02 nm
            Wavelength reproducibility<0.05 nm
            Spectral bandwidth0.5, 1.0, 2.0, 5.0 nm
            Baseline stability0.005 A/30 min
            Stray light≤0.12 %T (220 nm NaI, 340 nm NaNO2)
            Background correction

            Deuterium Arc (D2) 1.0 Abs,

            Self Reversal (SR) 3.0 Abs

            Flame Analysis
            Flame types

            Air/Acetylene,

            Nitrous Oxide/Acetylene,

            Air/Propane (LPG)

            Sensitivity (Cu)2 μg/ml Absorption >0.280 Abs
            Characteristic concentration

            Cu<0.02 μg/ml,

            Ba<0.15 μg/ml (N2O/Acetylene)

            Detection limitCu<0.004 μg/ml
            RepeatabilityCu<0.7 % (Air/Acetylene Flame)
                       Ba<1.0 % (Nitrous Oxide/Acetylene Flame)
            Burner headsTitanium alloy
            Nebulizer 

            High efficiency glass,

            Acid proof available as an option

            Pre-mix chamberCorrosion resistant
            Atomizer selectionManual (A3F)
                       Automatic changeover (A3FG)
            Safety featuresBurner identification, flame sensor, gas leak sensor, low gas pressure sensor, drain trap sensor, power loss protection
            Graphite Furnace Analysis 
            Graphite head Transversally heated
            Temperature rangeAmbient-2650 ℃
            Heating programUp to 10 steps. Drying, Ashing, Atomization, Cleaning 
            Feedback Voltage and optical temperature control feedback
            Sensitivity (Cu)50 ng/m Absorption>0.40 Abs
            Detection limit Cd<0.004 ng/ml
            Repeatability

            Cu<2.0 %,

            Cd<2.0 %

            Graphite tubesPyrolytically coated with platform
            Sample sizeUp to 20μl
            Graphite coolingWater circulator available
            Safety features

            Burner Identification,

            Flame Sensor,

            Gas leak Sensor,

            Low Gas Pressure Sensor,

            Drain Trap Sensor,

            Power Loss Protection,

            Circulation Water (graphite),

            Over Temperature Sensor (graphite)

            Data Processing 
            Operating programAA Win Pro software
            Analytical methods

            Flame AA, Flame AE,

            Graphite Furnace,

            Hydride Generation

            Readout ModeContinuous, manual, peak height, peak area
            calibrationsMulti-standard calibration, standard addition, interpolation
            Data storageAnalytical results, instrument and measurement parameters, signal profile, calibration curve
            Power Requirements
            Main unit 220 VAC 50/60 Hz 200 W
            Graphite power supply

            380VAC 50/60Hz,

            instantaneous power 5 kW current rating 7 kW

            Dimensions 
            Main unit

            44 x 21 x 21 in

            165 lb

            Graphite power supply

            20 x 21 x 21 in

            154 lb

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