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    Atomic Absorbtion Spectrometer

Atomic Absorbtion Spectrometer

  • Easy to use, complete software control
  • Integrated safety precautions for user protection
  • Flexible configuration for a wide array of industrial apps

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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 elements. All three flame configurations offer coded burners 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.

Key Features

  • 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

Features and Functions

PC System is used to control the instrument. Preinstalled AA-Win Pro software, user manuals, cookbook and Windows 7 Professional operating system.

AA-Win Pro software provides full control of the instrument and autosampler with easy method change for each technique.

Automatic 8 Hollow Cathode lamp turret controlled and optimized by the AA-Win Pro software. Operating lamp current and warm-up lamp current can be individually controlled to eliminate drift commonly associated with lamp warming.

D2 lamp background correction system fitted as standard to all configurations. High energy D2 lamp and adjustable beam splitter mirror are optimized by the AA-Win pro software.

Self-Reversal background correction system fitted as standard to all configurations. The high-performance background system uses the same hollow cathode lamp as installed for the analysis. Minimum extra components are required and optical alignment is very simple. Self Reversal can be used for any element at any wavelength making it extremely versatile.

High precision minimal optics ensures maximum light throughput to the computer-controlled Czerny-Turner monochromator.

A universal autosampler is available as an optional accessory that is conveniently mounted on the front of the A3 instrument.

Absorption and Emission modes are standard features in the AA-WinPro software as well as peak height, peak area, and sequential and manual integration modes.

Safety features

Pressure monitoring for all gases

Burner Identification

Flame sensor Drain

Trap level Sensor

Gas Leak Detector

Over Pressure Premix

Safety Cut-off Switch


COMPETITION ANALYSIS

 PERSEEPerkin Elmer  
 A3AAnalyst-400AAnalyst-600/800AAnalyst-700PinAAcle-500PinAAcle-900
Optical SystemSingle beamDouble beamDouble beamDouble beamDouble beamSingle beam for THGA
Double beam for Flame
Wavelength range185-900nm189-900nm189-900nm189-900nm190-870nm184-900nm
Bandwidth0.1, 0.2, 0.4, 1, 2nm0.12nm @ 200nmauto selectableauto selectable0.2,0.7,2.0nm0.2,0.7,2.0nm
WL Accuracy±0.15nm     
WL Precision<0.05nm     
Precision0.70%   0.30% 
SensitivityFlame Cu 0.03ppm Graphite Pb 2.1pg   
Grating1800L/mm79L/mm 36*185mm1800L/mm1800L/mm1800L/mm1800L/mm 64*72mm
Background
correction
D2 lamp and SRD2 lampD2 lamp and AC
Zeeman
D2 lampPortrait ZeemanD2 lamp and AC Zeeman
Light source8 HCLs, automatic4 automatic, HCL or
EDL
8 automatic (4 can be
used for EDL)
8 automatic (4 can be used
for EDL)
2 automatic HCL and EDL8 HCLs automatic
DetectorPMTSolid state detectorCCDCCDCCDSolid state detector
Switch ModeF: flame only
G: graphite only
FG: combine system
Manual600: Graphite only
800: Automatic
Automatic Automatic
Flame AtomizerPressure monitoring for all gases, burner identification, flame sensor, drain trap level sensor, gas leak detector, over pressure in premix, safety cut-off switchFully interlock operation; flame detection; flame off when power off.Fully interlock operation; flame detection; flame off when power off.Fully interlock operation; flame detection; flame off when power off. Fully interlock operation; pressure detection; flame detection; flame off when power off.
ControlFlame ignition, off, and switching are PC controlled and automated, and flow rate control by MFCPC controlPC controlPC control PC control with oxidant and fuel monitoring, ignite and switch by software.
Burner & NebulizerCoded titanium 100mm burner (50mm for N2O, 100mm*3 for LPG),adjustable nebulizer (SS capillary and glass impact bead as standard, Pt/Ir and PTFE optional)Titanium 10cm slot burner, 5cm/10cm*3 slot as optional; inert nebulizerTitanium 10cm slot burner, 5cm/10cm*3 slot as optional; inert nebulizerTitanium 10cm slot burner, 5cm/10cm*3 slot as optional; inert nebulizer Titanium 10cm slot burner as standard; plastic nebulizer or durable SS nebulizer
ChamerPTFE innert chamberinnert-polymerinnert-polymerinnert-polymercorrosion-resistant designinert mixing chamber
Gas BoxDifferential pressure MFC, more precision and durableFully automated gas box with PC control, auto gas sequencing, oxidant and fuel monitoring and control.Fully automated gas box with PC control, auto gas sequencing, oxidant and fuel monitoring and control.Fully automated gas box with PC control, auto gas sequencing, oxidant and fuel monitoring and control. Fully automated gas box with PC control, auto gas sequencing, oxidant and fuel monitoring and control.
Burner HeightFully automated for height and horizontallyautomatically adjust the burner vertically and horizontallyautomatically adjust the burner vertically and horizontallyautomatically adjust the burner vertically and horizontally automatically adjust the burner vertically and horizontally
ScraperManuallyYesYesYes  
Graphite atomizerHeating Mode: TransversalHeating Mode: PortraitHeating Mode: TransversalHeating Mode: Transversal Heating mode: transversal and portrait
 Heating Speed:2000°C/s2000°C/s2000°C/s2000°C/s  
 Max. Atomizer Temp. 3000°C2700°C2700°C2700°C 2600 (T); 3000 (H)
 Up to 10 heating stages are available for programming 12 steps12 steps 12 steps
 Cooling water flow sensor, protect gas pressure sensor, heating current, temperature, and graphite tube monitoring Gas flow control, cooling water monitoring, tube broken alarm,Gas flow control, cooling water monitoring, tube broken alarm, Gas flow control, cooling water monitoring
Misc.Unique flame type: LPG and air for active elements analysis; Universal autosampler for flame and graphite; fully automatic hydride system.     

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