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Atomic Absorption Spectrophotometer LX702AAS

Atomic Absorption Spectrophotometer LX702AAS

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.

Catalog
Wavelength range190-900nm
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 expansionHydride vapor generator can be connected for hydride analysis
Packing dimension (L x W x H) and Gross weightMain unit: 1280 x 750 x 830 mm, 150 kgs
Graphite furnace: 660 x 600 x 800 mm, 70 kgs

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

Used for testing the metal element concentration analyze in agriculture, chemical, environmental study, food, mining, and petrochemical, pharmaceutical industry.

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