Atomic Absorption Spectrophotometer LX704AAS is an integrated flame/graphite furnace atomization system where the graphite system is fully automatic. They analyze the concentration of elements in a liquid sample based on energy absorbed from certain wavelength of light. They are equipped with turrets that can hold multiple lamps to reduce downtime between samples or allow for sequential analysis.
| Wavelength range | 190-900nm | ||||||||||||||||
| Wavelength accuracy | ≤±0.25nm | ||||||||||||||||
| Wavelength repeatability | ≤±0.15nm | ||||||||||||||||
| Spectral bandwidth | ≤±0.02nm | ||||||||||||||||
| Stability of baseline |
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| Light source system |
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| Optical system |
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| Graphite furnace |
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| Detection and Data processing system |
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| Graphite furnace autosampler |
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| Function expansion | Hydride vapor generator can be connected for hydride analysis | ||||||||||||||||
| Power requirement for main unit | Monophase alternating current, 220V, average power dissipation≤0.3kVA | ||||||||||||||||
| Power requirement for accessories | Monophase alternating current, 220V, peak power dissipation 0.3kVA | ||||||||||||||||
| Packing dimension (L x W x H) and Gross weight | Main unit: 1280 x 750 x 830 mm, 150 kgs Graphite furnace power supply: 660 x 600 x 800 mm, 70 kgs Graphite furnace auto-sampler: 540 x 440 x 420 mm, 22 kgs |
The changeover of the integrated flame and graphite furnace atomizer is automatically controlled featuring easy operation and time saving which eliminates human labor
To perform flame emission analysis, flame emission burner head can be installed for alkali metals as K, Na etc.
Provided with automatic 8-lamp turret, automatic adjustment of lamp current and optimization of light beam position
Parameters like Wavelength scanning, peak picking, change in spectral bandwidth, optimization of position parameters, automatic ignition and gas flow setting are done automatically
The graphite furnace analysis is fully reliable and automatic, dual curve mode light-controlled temperature control technique, temperature auto-correction technique, ensures fast heating, good temperature reproducibility and high analytical sensitivity
Graphite furnace with pneumatic control and pressure lock ensures constant pressure and reliable contact
Automatic standard sample preparation, automatic correction of sampling probe depth, automatic tracing and correction of liquid surface height in the sample vessel, with sampling accuracy of 1% and reproducibility of 0.3%
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
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
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
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