Atomic Absorption Spectrophotometer AAS-007

Atomic Absorption Spectrophotometer Model AAS-007 is widely used for simultaneous and automatic determinations for more than one element and low concentrations of metals in samples of water. The Atomic Absorption Spectrophotometer Model AAS-007 features the multi-tasking functionality, Automatic calculation of sample concentration (content), mean value, standard deviation and relative standard deviation calculation.It is incorporated with automatic changeover between flame and graphite furnace operation, automatic optimization of position parameters, automatic ignition and automatic gas flow setting.

Features:

Innovated rich oxygen air-acetylene flame analysis technique (3)
Automatic wavelength scanning and peak picking (5)
Automatic spectral bandwidth changing (5)
Alarm and automatic protection to fuel gas leakage, abnormal flow, insufficient air pressure and abnormal flame extinction in flame system (4)
Adopting large-scale programmable logic array and Inter I2C bus technology (4)
European type sockets and AMP adapters with high reliability to ensure long term reliability of the whole electronic system (4)
Easy-to-use AAS analysis software is made under Windows operating system, realizing fast parameter setting and optimization (4)
Accurate fully automated control system (2)
Perfect safety protection measures (2)
Advance and reliable electronic design (2)
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
Integrated flame/graphite furnace atomization system, changeable with flame emission burner (2)
Automatically controlled changeover of the integrated flame and graphite furnace atomizer featuring easy operation and time saving eliminates human labor (2)
A flame emission burner head can be installed to perform flame emission analysis to akali metais as K, Na etc.
Automatic 6-lamp turret, automatic adjustment of lamp current and optimization of light beam position
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% (2)
Graphite furnace with pneumatic control and pressure lock ensures constant pressure and reliable contact (2)
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
Alarm and protection function to insufficient carrier gas and protective gas pressure, insufficient cooling wate supply and over-heating in graphite furnace system (2)
Automatic sample dilution, automatic curve fitting, automatic sensitivity correction (2)
Auotmatic calculation of sample concentration (content), mean value, standard deviation and relative standard deviation calculation
Mutil-elements determination in sequence to the same sample
Measured data and final results can be printed out and edited in Excel format

Specifications:

Function Expansion:

Hydride vapor generator can be connected for hydride analysis

Main Specification:

Wavelength Range:

190nm
900nm

Wavelength Accuracy:

Better than ±0.25nm

Resolution:

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

Baseline stability:

0.004A/30min

D₂ Lamp Background Correction:

1A is better than 30 times

S-H Background Correction:

1.8A better than 30 times

Optical System:

Monochromator:

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

Detection and Data Processing System:

Detector:

R928 Photomultiplier with high sensitivity and wide spectral range.

Software:

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 of Data and Final Analysis report printout, editing with Excel

Characteristics Concentration and Detection Limit:

Normal Air C₂H₂ Flame:

Cu: Characteristic concentration≤0.025mg/L, Detection limit ≤0.006mg/L

Hydride Generation:

Hg: detection limit≤0.5µg/L

Oxygen Rich Air C₂H₂Flame:

Ba: Characteristic concentration≤ 0.22mg/L

Al: Characteristic concentration ≤ 0.4mg/L

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

Graphite Furnace:

Temperature range:

Room temperature~3000ºC

Heating rate:

2000 ºC /s

Graphite tube dimensions:

28mm(L)×8mm(OD)

Precision:

Cd≤3%, Cu≤3%, Mo≤4%

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 injiectors

Dimensions:

Graphite furnace:

420×420×460mm

Main unit:

1070 (L) × 490 (W) × 580 (H)mm

Auto sampler:

400×290×290mm

Weight:

Main unit:

140kg

Graphite furnace:

65kg

Auto sampler:

15kg

Product Details:

Other Models:

Atomic Absorption Spectrophotometer AAS-001

Atomic Absorption Spectrophotometer AAS-003

Atomic Absorption Spectrophotometer AAS-004

Atomic Absorption Spectrophotometer AAS-008

Atomic Absorption Spectrophotometer AAS-009

Atomic Absorption Spectrophotometer AAS-010

Atomic Absorption Spectrophotometer Model AAS-007

Atomic Absorption Spectroscopy

Atomic Absorption

Atomic Absorption Analysis

Spectrophotometer

graphite furnace analysis

flame analysis

An atomic absorption spectrophotometer analyzes the concentration of elements in a liquid sample.Determination of Al, Cr, Cu, Fe, Mg, Na, Ni, Pb, Si, Sn, Zn and Ti using flame atomic absorption spectroscopy.In addition to saving you valuable time and improving sample throughput, it also reduces running costs, as more samples can be determined in less time.The Model AAS-007 Atomic Absorption Spectrophotometer accessory is the latest technology in PPB level analyses by graphite furnace AA. This fully integrated design uses an innovative, unique technology in a compact powerful furnace module. The quick-mount design permits rapid changeover between furnace and flame heads.

Name:
Mail ID:
Subject:
Comments: