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    Room 1015,Beijing Research Institute of Meha-
    nical & Electrical Technology,No.18 Xueqing Road,
    Haidian District,
    Beijing,P.R. China 100083

    WFX-110B/120B/130B Flame Atomic Absorption Spectrophotometer


    1  Innovated rich oxygen air-acetylene flame analysis technique(WFX-110B):

    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 2300-2950íŠ, which 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  Flame atomization system with flame emission burner

    A flame emission burner head can be installed to perform flame emissionanalysis to Alkali metals as K, Na etc.(WFX-110B/120B) 

    3  Accurate fully automated control system

    3.1 Automatic multi-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 ignition 

    4 Perfect safety protection measures

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

    5 Advance and reliable electronic design

    5.1 Adopting large-scale programmable logic array and Inter 12C bus technology

    5.2 European type sockets and AMP adapters with high reliability to ensurelong term reliability of the whole electronic system

    6 Easy and practical analysis software

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

    6.2 Automatic display of measured data, automatic caculatiion and analytical result automatic print out


    Main Specification

    Wavelength range


    Wavelength accuracy



    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


    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)

    Light Source System

    Lamp turret

    6-lamp turret (WFX-110B/120B),

    4-lamp turret (WFX-130B);

    Auto-alignment, fully automated scan and peak-picking.

    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)

    Optical System


    Single beam, Czerny-Turner design grating monochromator


    1800 l/mm

    Focal length


    Blazed Wavelength


    Spectral Bandwidth

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

    Flame Atomizer


    10cm single slot all-titanium burner

    Spray chamber

    Corrosion resistant all-plastic spray chamber


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

    Emission burner provided with WFX-110B/120B

    Detection and Data Processing System


    R928 Photomultiplier with high sensitivity and wide spectral range.


     Windows operating system

    Analytical method

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

    Repeat times

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

    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

    Standard RS-232 serial port communication

    Characteristic Concentration and Detection Limit

    Normal Air-C2H2 flame

    Oxygen-rich Air-C2H2 flame

    Cu: Characteristic concentrationí▄0.025mg/L, Detection limití▄0.006mg/L;

    Ba:  Characteristic concentration í▄ 0.22mg/L

    Al:   Characteristic concentration í▄ 0.4mg/L(for WFX-110B)

    Function Expansion

    Hydride vapor generator can be connected for hydride analysis

    Dimensions and weight

    Main unit

    102(L)í┴49(W)í┴54(H)cm, unpacked 80kg

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