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  • Contact Person : Mr. Chen YeWei
  • Company Name : Guangzhou Sinosource Trade Co., Ltd.
  • Tel : 86-20-83292911
  • Fax : 86-20-83292962
  • Address : Guangdong,Guangzhou,Room2106, 21F,BaiYun Building,BaiYun Road 111-113,YueXiu District
  • Country/Region : China
  • Zip : 510200

Atomic Absorption Spectrophotometer

Atomic Absorption Spectrophotometer
Product Detailed
Atomic Absorption Spectrophotometer Innovated rich oxygen air-acetylene flame analysis technique

Atomic Absorption Spectrophotometer

Features

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

5 Perfect safety protection measures

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

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

6 Advance and reliable electronic design

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

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

7 Easy and practical analysis software

7.1 Easy-to-use AAS analysis software is made under Windows operating system, realizing fast parameter setting and optimization

7.2 Automatic sample dilution, automatic curve fitting, automatic sensitivity correction

7.3 Auotmatic calculation of sample concentration (content), mean value, standard deviation and relative standard deviation calculation

7.4 Mutil-elements determination in sequence to the same sample

7.5 Measured data and final results can be printed out and edited in Excel format

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

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°C/s

Graphite tube dimensions

28mm(L)×8mm(OD)

Characteristic mass

Cd≤0.5 ×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 measurement for multi-element determination to 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

Atomic Absorption Spectrophotometer



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