Atomic Absorption Spectrophotometer LX702AAS

Atomic Absorption Spectrophotometer LX702AAS

Atomic Absorption Spectrophotometer LX702AAS

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

Description

Atomic Absorption Spectrophotometer LX702AAS is an integrated flame/graphite furnace atomization system where the graphite system is fully automatic. 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
Light source system
Lamp turretMotorized 8-lamp turret
Lamp current adjustmentWide pulse current: 0~25mA
Narrow pulse current: 0~10mA
Lamp power supply mode400Hz square wave pulse
100Hz narrow square wave pulse+400Hz wide square wave pulse
Optical system
MonochomatorSingle beam, Czerny-Turner design grating monochromator
Grating1800 lines/mm
Blazed wavelength250nm
Focal length277mm
Spectral bandwidth0.1nm, 0.2nm, 0.4nm, 1.2nm, auto-switch over
Graphite furnace
Temperature rangeRoom temperature~3000°C
Heating rate2000°C/s
Graphite tube dimensions28mm(L)×8mm(OD)
Characteristic massCd≤0.5 ×10-12g, Cu≤5 ×10-12g, Mo≤1×10-11g
PrecisionCd≤3%, Cu≤3%, Mo≤4%
Detection and Data processing system
DetectorR928 Photomultiplier with high sensitivity and wide spectral range
SoftwareUnder windows operating 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 measurement for multi-element determination to 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
Graphite Furnace Autosampler (optional)
Minimum sampling volume1μl
Repeatable sampling times1 -99 times
Sampling systemAccurate dual pump system, with 100μl and 1ml injectors
Function expansion
Hydride vapor generator can be connected for hydride analysis
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
  • R928 Photomultiplier with high sensitivity and wide spectral range
  • 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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