Atomic Absorption Spectrophotometer AA Spectrophotometer (1600056401635)

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Product Overview

Description


Atomic Absorption Spectrophotometer AA Spectrophotometer



Product Description


FEATURES:


 


Integrated flame/graphite furnace atomization system, changeable with flame emission burner


 


· Automatically controlled changeover of the integrated flame and graphite furnace atomizer featuring easy operation and time saving eliminates human labor.


· A flame emission burner head can be installed to perform flame emission analysis to Alkali metals as K, Na etc.


 


Accurate fully automated control system


· Automatic 6-lamp turret, automatic adjustment of lamp current and optimization of light beam position.


· Automatic wavelength scanning and peak picking


· Automatic spectral bandwidth changing


· Automatic changeover between flame and graphite furnace operation,  automatic optimization of position parameters, automatic ignition and automatic gas flow setting


Reliable fully automatic graphite furnace analysis


· Adopting FUZZY-PID and dual curve mode light-controlled temperature control technique, temperature auto-correction technique, ensures fast heating, good temperature reproducibility and high analytical sensitivity.  The temperature control accuracy is less than 1%.


· Graphite furnace with pneumatic control and pressure lock ensures constant pressure and reliable contact.


· Multi-function auto sampler features automatic standard sample preparation, automatic correction of sampling probe depth, automatic tracing and correction of liquid surface height in the sample vessel, with the sampling accuracy of 1% and reproducibility of 0.3%, realizing fully automation of graphite furnace analysis.


Perfect safety protection measures


· Alarm and automatic protection to fuel gas leakage, abnormal flow, insufficient air pressure and abnormal flame extinction in flame system;


· Alarm and protection function to insufficient carrier gas and protective gas pressure, insufficient cooling water supply and over-heating in graphite furnace system.


Advanced and reliable electronic design


· Adopting large-scale programmable logic array and Inter I2C bus technology


· European type sockets and AMP adapters with high reliability to ensure long term reliability of the whole electronic system.


 




 Specification



























































































































































Main Specification



Wavelength range



190-900nm



Wavelength accuracy



Better than ±0.25nm



Resolution



Two spectral lines of Mn at 279.5nm and 279.8nm can be separated with the spectral bandwidth of 0.2nm and valley-peak energy ratio less than 30%.



Baseline stability



0.004A/30min



Background correction



The D2 lamp background correction capability at 1A is better than 30 times.   


The S-H background correction capability at 1.8A is better than 30 times.



Light Source System



Lamp turret



Motorized 6-lamp turret (Two high performance HCLs can be mounted on the turret to increase the sensitivity in flame analysis.)



Lamp current adjustment



Wide pulse current: 0~25mA,              Narrow pulse current: 0~10mA.                  



Lamp power supply mode



400Hz square wave pulse;


100Hz narrow square wave pulse + 400Hz wide square pulse wave.  



Optical System



Monochomator



Single beam, Czerny-Turner design grating monochromator



Grating



1800 l/mm



Focal length



277mm



Blazed Wavelength



250nm



Spectral Bandwidth



0.1nm, 0.2nm, 0.4nm, 1.2nm, auto switch over



Flame Atomizer



Burner



10cm single slot all-titanium burner    



Spray chamber



Corrosion resistant all-plastic spray chamber.



Nebulizer



High efficiency glass nebulizer with metal sleeve, sucking up rate: 6-7mL/min



Emission burner provided



Graphite Furnace



Temperature range



Room temperature~3000ºC



Heating rate



   2000℃/s



Graphite tube dimensions



28mm (L) x 8mm (OD)



Characteristic mass



Cd≤0.8 ×10-12g, Cu≤5 ×10-12g, Mo≤1×10-11g



Precision



Cd≤3%, Cu≤3%, Mo≤4%



Detection and Data Processing System



Detector



R928 photomultiplier with high sensitivity and wide spectral range.



Software



Under Windows operating system



Analytical method



Working curve auto-fitting; standard addition method; automatic sensitivity correction; automatic calculation of concentration and content.



Repeat times



1~99 times, automatic calculation of mean value, standard deviation and relative standard deviation.



Multi-task Functions



Sequential determination of multi-elements in the same sample.



Condition reading



With model function



Result printing



Measurement data and final analytical report printout, editing with Excel.



Standard RS-232 serial port communication



Graphite Furnace Autosampler



Sample tray capacity



55 sample vessels and 5 reagent vessels



Vessel material



Polypropylene



Vessel volume



3ml for sample vessel, 20ml for reagent vessel



Minimum sampling volume



1μl



Repeatable sampling times  



1~99 times



Sampling system



Accurate dual pump system, with 100μl and 1ml injectors.




Product Display


 




 





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1600056401635
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