Shanghai Lorderan Scientific Instrument Co., Ltd.
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  • Contact Person : Mr. Zhang Jimmy
  • Company Name : Shanghai Lorderan Scientific Instrument Co., Ltd.
  • Tel : 86-21-51159001, 60891036
  • Fax : 86-21-60891036
  • Address : Shanghai,Shanghai,Room 133, Section C, Bldg. 8, No. 152, Xiaodong Street, Jiading Industrial Zone
  • Country/Region : China
  • Zip : 201318

Flame/Graphite Furnace Atomic Absorption Spectrophotometer

Flame/Graphite Furnace Atomic Absorption Spectrophotometer
Product Detailed
Innovated rich oxygen air-acetylene flame analysis technique Integrated flame/graphite furnace atomization system

1 Innovated rich oxygen air-acetylene flame analysis technique;

The patented flame analysis technique adopting rich oxygen air-acetylene flame as the substitution for nitrous oxide-acetylene flame for high temperature element analyses, such as Ca, Al, Ba, W, Mo, Ti, V, etc. Flame temeperature is continuously adjustable between 2300-2950 with makes it possible to choose the best atomization temperature for different elements. It features easy operation, low analysis cost and wide flame AAS analytical range. Rich oxygen flame will not pollute the environment and is not harmful to human bodies. It's break-through in flame AAS analysis

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

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

2.2 A flame emission burner head can be installed to perform flame emission analysis to akali metais as K, Na etc.

3 Accurate fully automated control system

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

3.2 Automatic wavelength scanning and peak picking

3.3 Automatic spectral bandwidth changing

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

4 Reliable fully automatic graphite furnace analysis

4.1 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%

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

4.3 Multi-function autosampler 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

 

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 wave pulse

Flame/Graphite Furnace Atomic Absorption Spectrophotometer



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