WFX-110A /120A/130A AAS Spectrometer

Atomic Absorption Spectrophotometer

Features

• The patented flame analysis technique adopting oxygen-rich air-acetylene flame as the substitution for nitrous oxide-acetylene flame for high temperature element analyses. (Only for WFX-110A)
• Automatic hollow cathode lamp changeover.  The high performance HCL can be used directly.
• Auto-changeover and position optimization of integrated flame/graphite furnace atomizer.
• Auto-ignition, automatic spectral bandwidth selection.
• Fully automated wavelength scanning and peaking
• 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.
• 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.
• Adopting large-scale programmable logic array and Inter IC bus technique and highly reliable adapters for electric design.
• 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.

Specifications of WFX-110A /120A/130A AAS Spectrometer

Main Specification	Wavelength range	190-900n
	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. (only for WFX-110A/120A)
Hollow Cathode Lamps	Lamp turret	6-lamp turret (WFX-110/120),             4-lamp turret (WFX-130) 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	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 furnace	Flame/Graphite furnace atomizer auto 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 (for WFX-110A)
Graphite Furnace Analysis	Temperature range	20~3000ºC
	Light-controlled temperature range	1500ºC -3000ºC, temperature auto-correction
	Temperature control accuracy	≤1%
	Heating rate	2000¡æ/s
	Characteristic mass	Cd≤0.5 x 10-12g, Cu≤5 x 10-12g, Mo≤1 x 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) x 492 (W) x 537 (H) mm (main unit) 420 (L) x 420 (W) x 460 (H) mm (graphite furnace)
Weight	Unpacked 80kg (main unit), 50kg (graphite furnace)

For further information or to place an order for the Atomic Absorption Spectrophotometer - WFX-110A /120A/130A AAS Spectrometer, please CLICK HERE, call us Toll-Free at: 1.877.884.TEST, or click on the "HOW TO ORDER" Button