WFX – 110A / 120 A/130 A Flame/Graphite Furnace Atomic Absorption Spectrophotometer |
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| Features |
- Innovated rich oxygen air-acetylene flame analysis technique (WFX – 110A)
- Integrated flame/graphite furnace atomization system, changeable with flame emission burner
- Accurate fully automated control system
- Reliable fully automatic graphite furnace analysis
- Perfect safety protection measures
- Advanced and reliable electronic design
- Easy and practical analysis software
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| Specifications |
Main Specification :
Wavelength Range: 190 – 900nm
Wavelength Accuracy: ± 0.25 nm
Resolution: Two spectral lines of Mn at 279.5nm and 279.8nm can be separated with the spectral bandwidth of 0.2 nm and valley peak energy ratio less than 30%
Baseline stability: ≤ 0.004A/30min
Background correction: The D2 lamp background correction capacity/ at 1A is better than 30 times.
The S-H background correction capability at 1.8Ais better than 30 times (only for WFX – 110A – 120A) |
Hollow cathode lamps
Lamp Turret: 6 – lamp turret (WFX – 110A-120A), 4-LAMP TURRET (WFX – 130A)
Auto-alignment, fully automated scan and peak picking.
Lamp current adjustment: Automatic adjustment and display 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 – 110A-120A) |
Optical System
Monochomator: Single beam, Czerny – Turner design grating monochromator
Grating: 1800 1/mm
Focal length: 277 mm
Blazed wavelength: 250nm
Spectral bandwidth: 0.1nm, 0.2nm, 0.4nm , 1.2nm, automatic change |
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 with WFX – 110A-120A |
Graphite Furnace
Temperature range: Room temperature – 30000C
Heating rate: 20000C/s
Graphite tube dimensions: 28mm (L) x 8 mm (OD)
Characteristic mass: Cd ≤ 0.8 X 10- 12g ,Cu ≤ 5 x 10 -12g Mo ≤ 1 x 10-11g
Precision: Cd≤3%, Cu≤3%, Mo≤ 4% |
Detection and Data Procession 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: Maximum 20 times of repeat measurement, automatic calculation of mean value, standard deviation and
relative standard deviation.
Multi-task Function: Sequential determination of multi-elements in one sample.
Condition reading: With model function
Result printing: Measurement data and final analytical report printout, editing with Excel. |
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| Standard RS – 232 serial port communication |
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Characteristic concentration and Detection Limit :
Normal Air – C2H2 flame: Cu : Characteristic concentration ≤ 0.025 mg/L, Detection Limit ≤ 0.006mg/L,
Rich oxygen Air-C2H2 flame: Ba : Characteristic concentration ≤ 0.22mg/L
Al: Characteristic concentration ≤ 0.4mg/L (for WFX – 110A) |
Function Expansion
Hydride vapor generator can be connected for hydride analysis. |
Dimensions and Weight
Main unit: 1020 (L) X 490(W) X 540 (H) mm unpacked 80kg
Graphite furnace: 420 (L) x 420 (W) x 460 (H) mm unpacked 50kg |
