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.
| Wavelength range | 190-900nm | ||||||||||||
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| 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 |
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| Background correction | D2 lamp background correction, with correction ability more than 30 times S-H background correction, with correction ability more than 30 times |
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| 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 |
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| Optical System |
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| 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 |
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| Graphite furnace |
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| Detection and Data processing system |
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| 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 |
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| 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 |
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
Used for testing the metal element concentration analyze in agriculture, chemical, environmental study, food, mining, and petrochemical, pharmaceutical industry.
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