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| WFX-110A ATOMIC ABSORPTION
SPECTROPHOTOMETER Features
for WFX-110A Atomic Absorption Spectrophotometer |
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The patented flame analysis
technique adopting oxygen-rich air-acetylene flame as the
substitution for nitrous oxide-acetylene flame for high
temperature element analyses. |
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Automatic hollow cathode lamp
changeover. The high performance HCL can be used directly. |
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Auto-changeover and position
optimization of integrated flame/graphite furnace atomizer. |
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Auto-ignition, automatic spectral
bandwidth selection. Fully automated wavelength scanning and
peaking |
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Light-controlled graphite furnace
power supplier, adopting FUZZY-PID temperature control technique
and dual curve working mode, ensures fast heating, accurate and
stable temperature control and good temperature reproducibility.
Temperature auto-correction function provided. |
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Graphite furnace with pneumatic
control and pressure lock ensures constant pressure and reliable
contact. |
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Perfect safety protection measures,
alarm and automatic safety protection to fuel gas leakage, air
pressure deficiency and abnormal flame extinction; spray chamber
made of explosion-proof material, all-titanium burner and
explosion-proof stopper for flame analyses; alarm and protection
function to argon pressure deficiency, insufficient cooling water
supply, over-heating and over-current etc. in graphite furnace
analyses. |
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|
Adopting large-scale programmable
logic array and Inter IC bus technique and highly reliable
adapters for electric design. |
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Easy and flexible WINDOWS operating
system, with multi-windows processing technology to observe the
signal profile, the measured results and the calibration curve at
the same time. Various analytical programs, data, signals and
graphics can all be stored for later use. |
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Specifications for WFX-110A Atomic
Absorption Spectrophotometer
| Main
Specification |
Wavelength range |
190-900nm |
| Wavelength accuracy |
±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. |
| Hollow Cathode
Lamps |
Lamp turret |
6-lamp turret, 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 |
Powered by two pulses
simultaneously |
| 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
automatic change. |
| Atomizer |
Flame/Graphite |
Flame & Graphite Furnace
atomizer automatic changeover |
| Detection and
Data Processing System |
Detector |
Photomultiplier with high
sensitivity and wide spectral range |
| Software |
Ms-Windows 98/Me operating
system |
| Analytical method |
Working Curve Method (1st
order and 2nd order fitting), Sensitivity auto-correction, Standard
Addition Method. |
| Concentration |
Auto-calculation of
concentration and content |
| Repeatable measurement |
Maximum 20 times of repeat
measurement, automatic calculation of mean value, standard deviation
and relative standard deviation. |
| Multi-task function |
Sequential measurement of
multi-elements in one sample |
| Condition reading |
With model function |
| Result printing |
Measurement data and final
analytical report printout, editing with Excel. |
| Flame Analysis |
Burner |
10cm single slot all-titanium
burner |
| Spray chamber |
All-plastic spray chamber. |
| Nebulizer |
High efficiency glass
nebulizer with metal sleeve |
| Position adjustment |
Adjusting mechanism for
vertical, horizontal positions and the rotation angle of the burner. |
| Protection for gas system
|
Fuel gas leak protection,
abnormal flame extinction alarm, air-pressure deficiency protection
and explosion-proof device |
| Flame ignition |
Automatic |
| Characteristic
Concentration and Detection Limit |
Normal Air-C2H2 flame |
Cu: Characteristic
concentration≤0.025mg/L, Detection limit≤0.006mg/L; |
Oxygen-rich Air-C2H2
flame |
Ba: Characteristic
concentration ≤ 0.22mg/L Al:
Characteristic concentration ≤ 0.4mg/L |
| Hydride generation |
Hg: detection limit≤0.5ug/L |
| Graphite Furnace
Analysis |
Temperature range |
20~3000ºC |
| Light-controlled temperature
range |
1500ºC -3000ºC, temperature
auto-correction |
| Temperature control accuracy |
≤1% |
| Heating rate 2000/s |
|
| Characteristic mass |
Cd≤0.5 ×10-12g, Cu≤5 ×10-12g,
Mo≤1×10-11g |
| Precision |
RSD≤4% |
| Safety protection |
Protections for over-heating,
over-current, and less cooling water and argon pressure monitoring
functions |
|
Power Supply |
220V, 200W |
| Dimensions |
1020 (L) × 492
(W) × 537 (H) mm (main unit) |
| 420 (L) × 420 (W)
× 460 (H) mm (graphite furnace) |
|
Weight |
Unpacked 80kg (main unit), 50kg
(graphite furnace) |
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WFX-210 ATOMIC ABSORPTION
SPECTROPHOTOMETER
Accurate and reliable graphite furnace analysis
|
|
Light-controlled graphite furnace power
supplier, adopting FUZZY-PID temperature control technique and dual
curve working mode, ensures fast heating, accurate and stable
temperature control and good temperature reproducibility. Temperature
auto-correction function provided. |
|
|
Graphite furnace with pneumatic control
and pressure lock ensures constant pressure and reliable contact. |
|
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High accuracy and reproducibility of the
graphite furnace auto-sampler, realizing fully automation of graphite
furnace analysis. |
Fully automated control system
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Auto-changeover and position optimization
of integrated flame/graphite furnace atomizer. |
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Automatic 6-lamp turret. High performance
HCL can be used directly, which features high intensity spectral line
and low background. |
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Auto-ignition, automatic spectral
bandwidth selection. |
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Fully automated wavelength scanning and
peaking. |
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Adopting mass flowmeter with program
control ensures accurate gas intake volume. |
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Automatic setting of Gas flow
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Perfect safety protection measures
|
|
Alarm and automatic safety protection to
fuel gas leakage, air pressure deficiency and abnormal flame extinction |
|
|
Spray chamber made of explosion-proof
material, all titanium burner and explosion-proof stopper for flame
analyses. |
|
|
Alarm and protection function to argon
pressure deficiency, insufficient cooling water supply, over-heating and
over-current ect. In graphite furnace analyses. |
Advanced and reliable electronic design
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Adopting large-scale programmable logic
array and Inter IC bus technique and highly reliable adapters for
electric design. |
|
|
European type sockets and AMP adapters
with high reliability to ensure long term reliability of the whole
electric system. |
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Standard RS-232 serial interface
communication. |
Easy and practical analysis software
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Easy-to-use AAS analysis software is made
under Windows operating system. |
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Automatic curve fitting, automatic
sensitivity correction. |
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Automatic calculation of sample
concentration (content), mean value standard deviation and relative
standard deviation calculation. |
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Multi-elements determination in sequence
to the same sample. |
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Measured data and final results can be
printed out and edited in Excel format. |
Comparison
Characteristic Mass of Some Elements using Oxygen-rich air-C2H2 flame and
other flame methods (Unit: ug/ml)
|
Element |
Wavelength(nm) |
Oxygen-rich air-C2H2 flame |
N2O-C2H2 flame |
Air-C2H2 flame |
|
Ca |
422.7 |
0.009 |
0.05 |
0.07 |
|
Yb |
378.8 |
0.037 |
0.08 |
7.6 |
|
Eu |
459.4 |
0.137 |
0.3 |
3.0 |
|
Al |
309.3 |
0.4 |
0.7 |
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Sr |
460.7 |
0.016 |
0.1 |
0.15 |
|
Ba |
553.5 |
0.1 |
0.4 |
10.0 |
|
Mo |
313.3 |
0.15 |
0.4 |
0.8 |
|
W |
255.1 |
3.2 |
5.0 |
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Ga |
287.4 |
0.4 |
1.0 |
1.3 |
|
Sm |
429.7 |
2.92 |
8.5 |
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La |
550.1 |
37.2 |
35.0 |
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Sn |
224.6 |
0.8 |
3.0 |
50 |
Specifications for WFX-210 Atomic Absorption
Spectrophotometer
|
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 |
6-lamp turret ( Two high performance HCLs can be
mounted on the turret to increase the sensitivity in flame analysis.);
auto alignment; auto fine adjustment; 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 |
Powered by two pulses (wide and narrow)
simultaneously. |
|
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
|
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Atomizer |
Flame/Graphite Furnace |
Flame & Graphite Furnace atomizer automatic changeover
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Automatic graphite furnace position optimization,
automatic flame height setting and horizontal position optimization.
|
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Automatic gas flow setting, alarm and automatic
protection function for gas leak, abnormal flow, air-pressure
deficiency and abnormal flame extinction, automatic ignition.
|
|
Graphite Furnace Autosampler |
Sample tray capacity |
55 sample cups and 5 cups for matrix modifier
|
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Material of the sample cup |
Polypropylene |
|
Volume of the standard cup |
3ml for sample, 20ml for matrix modifier |
|
Number of repeatable measurements |
Up to 99 times |
| Sampling system |
100ul and 5ml injectors, large
flow sampling nozzle rinsing. |
| Sampling precision and
repeatability |
Precision: 1%; Repeatability:
0.3% for min. sampling volume. |
| Auto-correction . |
Sampling nozzle
auto-correction, sample cup height auto correction |
| Detection and Data
Processing System |
Detector . |
Photomultiplier with high
sensitivity and wide spectral range |
| Software |
Windows 98/Me operating system |
| Analytical method |
Working Curve Method (1st
order and 2nd order fitting) with automatic sensitivity correction;
Standard Addition Method. |
| Concentration |
Auto-calculation of
concentration and content |
| Repeatable measurement |
Repeated measurement of up to
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 (Max. 6 elements). |
| Condition reading |
With model function |
| Result printing |
Measurement data and final
analytical report printout, editing with Excel. |
| Flame Analysis |
Burner |
10cm single slot all-titanium
burner |
| Spray chamber |
All-plastic spray chamber. |
| Nebulizer |
High efficiency glass
nebulizer with metal sleeve. |
| Characteristic Concentration
and Detection Limit |
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 |
| Graphite Furnace
Analysis |
Temperature range |
Room temperature~3000ºC |
| Light-controlled temperature
range |
1500ºC -3000ºC, temperature
auto-correction |
| Temperature control accuracy |
≤1% |
| Heating rate |
2000 /s |
| Characteristic mass |
Cd≤0.5 ×10-12g, Cu≤5 ×10-12g,
Mo≤1×10-11g |
| Precision |
Cd≤3%, Cu≤3%, Mo≤4% |
| Safety protection |
Protections for over-heating,
over-current, and less cooling water and argon pressure monitoring
function |
| Dimensions and
Weight |
Main unit |
107X49X58cm, 140kg |
| Graphite furnace |
42X42X46cm, 65kg |
| Autosampler |
40X29X29cm, 15kg |
| WFX-320 ATOMIC
ABSORPTION SPECTROPHOTOMETER
Specifications for WFX-320 Atomic Absorption Spectrophotometer |
|
|
Main Specification |
Wavelength range |
190-900nm |
|
Wavelength accuracy |
±0.5nm |
|
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 |
0.005A/30min |
|
Background correction |
The D2 lamp background correction capability at 1A is
better than 30 times. |
|
Light Source System |
Lamp number |
2 lamps (one preheating) |
|
Lamp current adjustment |
Micro-computer control
Adjustment range: 0~20mA, |
|
Lamp power supply mode |
Powered by square pulses |
|
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 |
|
Detection and Data Processing System
|
Detector |
Photomultiplier with high sensitivity and wide
spectral range. |
|
Electronic and micro-computer system |
Light energy and negative high-voltage auto-balance
|
|
Display mode |
LED display of energy and measurement values,
concentration direct reading |
|
Read mode |
Transient, integral, peak height, peak area.
Integral or sampling time is in the range of 0.1-19.9s. |
|
Scale expansion |
0.1~99 |
|
Data processing mode |
Automatic calculation of mean, standard deviation and
relative standard deviation. Repeating number is in the rang of 1-99
|
|
Measurement mode |
3~7 standards can be determined for curve fitting.
Sensitivity correction available. |
|
Result printing |
Measurement data, working curve, signal profile and
analytical conditions can all be printed out. |
|
Instrument self-check |
Check current status of each function key |
|
Flame Analysis |
Burner |
10cm single slot all-titanium burner |
|
Spray chamber |
All-plastic spray chamber. |
|
Nebulizer |
High efficiency glass nebulizer with metal sleeve.
|
|
Position adjustment |
Adjusting mechanism for vertical, horizontal positions
and the rotation angle of the burner. |
|
Gas line protection |
Fuel gas leak alarm |
|
Characteristic Concentration and Detection Limit
|
Air-C2H2 flame |
Cu: Characteristic concentration ≤0.025mg/L,
Detection limit≤0.006mg/L;
|
|
Function Expansion |
|
Flameless analysis with WF-1C graphite furnace system
available. |
|
Hydride vapor generator can be connected for hydride
analysis. |
|
Dimensions and Weight |
|
1020 x 490 x 540 mm, 80kg unpacked |
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