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Spectrophotometer

Atomic Absorption

EAA-520

Model: EAA-520

Features:

A flame emission burner head can be installed to perform flame emission analysis to Alkali metals as K, Na etc.
Adopting large-scale programmable logic array and Inter I2C bus technology (3)
Alarm and automatic protection to fuel gas leakage, abnormal flow, insufficient air pressure and abnormal flame extinction in flame system (3)
Automatic ignition
Automatic multi-lamp turret, automatic adjustment of lamp current and optimization of light beam position (2)
Automatic sample dilution, automatic calculation and analytical result automatic print out
Automatic spectral bandwidth changing (4)
Automatic wavelength scanning and peak picking (4)
Easy-to-use AAS analysis software is made under Windows operating system, realizing fast parameter setting and optimization (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 adju (3)

Specifications:

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.( only for WFX-110B/120B)

Lamp current adjustment:

400Hz square wave pulse 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 (WFX-110B/120B)

Normal Air-C2H2 flame Oxygen-rich Air-C2H2 flame:

Cu: Characteristic concentration≤0.025mg/L

Detection limit≤0.006mg/L;

Ba: Characteristic concentration ≤ 0.22mg/L

Al: Characteristic concentration ≤ 0.4mg/L

Function Expansion:

Hydride vapor generator can be connected for hydride analysis

Main Specification:

Wave length range:

190-900nm

Wave length accuracy:

±0.25nm

Resolution:

Two spectral lines of Mn at 279.5nm and 279.8nm can be separated with the spectral bandwidth of 0.2n

Baseline stability:

0.004A/30min

Light Source System:

Lamp turret:

6-lamp turret (WFX-110B/120B), 4-lamp turret (WFX-130B); Auto-alignment, fully automated scan and pe

Optical System:

Spectral Bandwidth:

0.1nm, 0.2nm, 0.4nm, 1.2nm, automatic change

Blazed Wavelength:

250nm

Focal length:

277mm

Grating:

1800 l/mm

Monochromator:

Single beam, Czerny-Turner design grating monochromator

Flame Atomizer:

Emission burner:

provided with WFX-110B/120B

Burner:

10cm single slot all-titanium burner

Nebulizer:

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

Spray chamber:

Corrosion resistant all-plastic spray chamber

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 ca

Repeat times:

Maximum 20 times of repeat measurement, automatic calculation of mean value, standdard deviation and

Multi-task Functions:

Sequential measurement for multi-element determination in one sample

Condition reading:

With model function

Result printing:

Measurement data and final analytical report printout, editing with Excel

Communication:

Standard RS-232 serial port communication

Dimensions and weight:

Main unit:

102×49×54cm, unpacked 80kg

Other Models of Spectrophotometer :

EAA-505

EAA-510

EAA-515

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