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Atomic Absorption Spectrophotometer (WFX-210)

Company Overview - Tsingtao Unicom

Atomic Absorption Spectrophotometer (WFX-210)

Price : US $ 31
Packaging Details : Carton or boarding ark
Brand Name : UNICOM-OPTICS or Neutral English
Model Number : WFX-210
Production Capacity : 500pcs/year
Place of Origin : china
Category : Other Graphite Products
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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.
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Main SpecificationWavelength range190-900nm
Wavelength accuracyBetter than ±0.25nm
ResolutionTwo 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 stability0.004A/30min
Background correctionThe 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 SystemLamp turret6-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 adjustmentAutomatic adjustment and display.           Wide pulse current: 0~25mA,              Narrow pulse current: 0~10mA.                 
Lamp power supply modePowered by two pulses (wide and narrow) simultaneously.  
Optical SystemMonochomatorSingle beam, Czerny-Turner design grating monochromator
Grating1800 l/mm
Focal length277mm
Blazed Wavelength250nm
Spectral Bandwidth0.1nm, 0.2nm, 0.4nm, 1.2nm, auto-switch over
AtomizerFlame/Graphite FurnaceFlame & Graphite Furnace atomizer automatic changeover
Automatic graphite furnace position optimization, automatic flame height setting and horizontal position optimization.
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 AutosamplerSample tray capacity55 sample cups and 5 cups for matrix modifier
Material of the sample cupPolypropylene
Volume of the standard cup3ml for sample, 20ml for matrix modifier
Number of repeatable measurementsUp to 99 times
Sampling system100ul and 5ml injectors, large flow sampling nozzle rinsing.
Sampling precision and repeatabilityPrecision: 1%; Repeatability: 0.3% for min. sampling volume.
Auto-correctionSampling nozzle auto-correction, sample cup height auto correction.
Detection and Data Processing SystemDetectorPhotomultiplier with high sensitivity and wide spectral range.
SoftwareWindows 98/Me operating system
Analytical methodWorking Curve Method (1st order and 2nd order fitting) with automatic sensitivity correction; Standard Addition Method.
ConcentrationAuto-calculation of concentration and content
Repeatable measurementRepeated measurement of up to 99 times, automatic calculation of mean value, standard deviation and relative standard deviation.
Multi-task FunctionsSequential measurement for multi-element determination to the same sample (Max. 6 elements).
Condition readingWith model function
Result printingMeasurement data and final analytical report printout, editing with Excel.
Flame AnalysisBurner10cm single slot all-titanium burner   
Spray chamberAll-plastic spray chamber.
NebulizerHigh efficiency glass nebulizer with metal sleeve.
Characteristic Concentration and Detection LimitAir-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 AnalysisTemperature rangeRoom temperature~3000ºC
Light-controlled temperature range1500ºC -3000ºC, temperature auto-correction
Temperature control accuracy‰¤1%
Heating rate2000ºC/s
Characteristic massCd‰¤0.5 —10-12g, Cu‰¤5 —10-12g, Mo‰¤1—10-11g
PrecisionCd‰¤3%, Cu‰¤3%, Mo‰¤4%
Safety protectionProtections for over-heating, over-current, and less cooling water and argon pressure monitoring functions
Dimensions and WeightMain unit107X49X58cm, 140kg
Graphite furnace42X42X46cm, 65kg
Autosampler40X29X29cm, 15kg

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