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      Atomic Absorption Spectrophotometer LX700AAS

      Atomic Absorption Spectrophotometer LX700AAS

      Email: info@labdex.com website: www.labdex.com

      Description

      Atomic Absorption Spectrophotometer LX700AAS is designed for air-acetylene flame method analysis, flame emission method analysis and graphite furnace analysis etc. Equipped with unique light source system, with 8-lamp turret fully automatic change and optimization, supports 1 lamp working and 7 lamps preheating in the same time. Flame temperature is continuously adjustable between Room temperature~3000ºC, which makes it possible to choose the best atomization temperature. Flame will not pollute the environment and is not harmful for human bodies. It’s a break-through in flame AAS analysis.

      Specifications

      Wavelength range 190-900nm
      Wavelength accuracy ≤±0.25nm
      Wavelength repeatability ≤0.15nm
      Baseline stability Static: Zero Drift of Baseline ≤0.005Abs/30min, Baseline transient noise≤0.001Abs Dynamic: Zero Drift of Baseline ≤0.005Abs/10min, Baseline transient noise≤0.005Abs
      Background correction D2 lamp background correction, with correction ability more than 30 times S-H background correction, with correction ability more than 30 times
      Light source system Eight-lamp position design Automatically rotating light stand that can be automatic switch and optimize Two lamp positions to support high-performance hollow cathode lamps Each lamp position can be lighted and preheated optionally
      Optical System
      MonochromatorSingle beam, Czerny-Turner design
      Ruled density1800 lines/mm
      Blazed wavelength250nm
      Focal length277mm
      Spectral bandwidth0.1nm, 0.2nm, 0.4nm, 0.8nm and 1.6nm (debugging slit) switching automatically
      Flame system 10cm Ti burner head for air-acetylene flame, emission burner provided Burner head height and horizontal position automatic adjustment, with burner angle rotatable Direct forming spray chamber with corrosion-resistant material PPS Automatic ignition with high precision mass flow control system, realizing fully automated fuel gas flow control an adjustment
      Graphite furnace
      Temperature rangeRoom temperature~3000°C
      Heating rate2500°C/s
      Two temperature control modesOptical and constant voltage. Both slope and stepped temperature programming are available
      GF heightFully automatic GF height and horizontal position setting and optimization
      Detection and Data processing system
      Analytical methodWorking curve auto-fitting; Standard addition method; Automatic sensitivity correction; Automatic calculation of concentration and content
      Repeat times1~99 times, automatic calculation of mean value, standard deviation and relative standard deviation
      Multi-task functionsSequential determination of multi-elements in the same sample
      Condition readingWith model function
      Result printingMeasurement data and final analytical report printout, editing with Excel
      Communication portStandard RS-232 serial port communication
      Function expansion Hydride vapor generator can be connected for hydride analysis
      Dimension and weight (L x W x H) Main unit: 1020 x 530 x 500 mm, 95 kgs Graphite furnace: 350 x 550 x 430 mm, 35 kgs
      Packing dimension (L x W x H) and Gross weight Main unit: 1280 x 750 x 830 mm, 150 kgs Graphite furnace: 660 x 600 x 800 mm, 70 kgs
      Features
      • Provided with automatic 8-lamp turret, automatic adjustment of lamp current and optimization of light beam position
      • To perform flame emission analysis, flame emission burner head can be installed for alkali metals
      • Parameters like Wavelength scanning, peak picking, change in spectral bandwidth, optimization of position parameters, automatic ignition and gas flow setting are done automatically
      • Data processing system: provided with analytical methods – Working curve auto-fitting standard addition method, automatic sensitivity correction, automatic calculation of concentration and content with windows operating system software
      • Experiments can be repeated 1~99 times along with automatic calculation of mean value, standard deviation and relative standard deviation
      • Equipped with multi task functions- sequential determination of multi-elements in the same sample, condition reading- with model function and result printing- measured data and final analytical report printout in excel
      • Provided with standard RS-232 serial port connection
      • AAS analysis is made under windows operating system which is easy-to-use with fast parameter setting and optimization
      • In order to increase the sensitivity in flame analysis, two high performance HCLs can be mounted on the lamp turret
      • The D2 lamp and S-H background correction capability at 1A and 1.8A respectively is better than 30 times
      • The optical system consisting of outer light path, C-T type grating monochromatic, and back light path, which is in the upper right of the instrument, is controlled by the computer
      • Real-time monitoring of flame status, air pressure, etc. Automatically shutting off the gas circuit and alarm in abnormal status
      • Equipped with alarm and automatic protection to fuel gas leakage, abnormal flow, insufficient air pressure and abnormal flame extinction in flame system
      • Protection function and alarms for insufficient carrier gas and protective gas pressure, insufficient cooling rate supply and over-heating in graphite furnace system
      Applications
      • Used for testing the metal element concentration analyze in agriculture, chemical, environmental study, food, mining, and petrochemical, pharmaceutical industry.
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