Atomic Absorption Spectrophotometer (WFX-210)

• Product Name:

  Atomic Absorption Spectrophotometer (WFX-210)

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• Product Detials:

  Atomic Absorption Spectrophotometer (WFX-210)

  1. Innovated flame analysis technique
  2. The patented flame analysis technique adopting oxygen-rich air-acetylene flame as the substitution for nitrous oxide-acetylene flame for high temperature element analyses, such as Ca, Al, W, Mo, Ti, V, etc. Flame temperature is continuously adjustable between 2300-2950ºC, which makes it possible to choose the best atomization temperature for different elements. It features easy operation, low analysis cost. Oxygen-rich flame will not pollute the environment and is not harmful to human bodies. It is a break-through in flame AAS analysis.
  3. Popular Czerny-Turner grating monochromator with 1800l/mm provides higher resolution.
  4. All plastic pre-mix spray chambers with high anti-corrosion ability.
  5. Accurate and reliable graphite furnace analysis
  6. 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.
  7. Graphite furnace with pneumatic control and pressure lock ensures constant pressure and reliable contact.
  a) High accuracy and reproducibility of the graphite furnace auto-sampler, realizing fully automation of graphite furnace analysis.
  b) Fully automated control system
  8. Auto-changeover and position optimization of integrated flame/graphite furnace atomizer.
  9. Automatic 6-lamp turret. High performance HCL can be used directly, which features high intensity spectral line and low background.
  10. Auto-ignition, automatic spectral bandwidth selection.
  11. Fully automated wavelength scanning and peaking.
  12. Adopting mass flowmeter with program control ensures accurate gas intake volume.
  13. Automatic setting of Gas flow
  14. Perfect safety protection measures
  15. Alarm and automatic safety protection to fuel gas leakage, air pressure deficiency and abnormal fla

  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
  Atomizer	Flame/Graphite Furnace	Flame & 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 Autosampler	Sample tray capacity	55 sample cups and 5 cups for matrix modifier
  	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	2000ºC/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 functions
  Dimensions and Weight	Main unit	107X49X58cm, 140kg
  	Graphite furnace	42X42X46cm, 65kg
  	Autosampler	40X29X29cm, 15kg