WFX-210 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.
• Automatic hollow cathode lamp changeover.  The high performance HCL can be used directly.
• Auto-changeover and position optimization of integrated flame/graphite furnace atomizer.
• 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.
• High accuracy and reproducibility of the graphite furnace auto-sampler, realizing fully automation of graphite furnace analysis.
• Auto-ignition, automatic spectral bandwidth selection.
• Fully automated wavelength scanning and peaking
• Automatic setting of Gas flow
• 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.
• Standard RS-232 serial interface communication
• 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-210 AAS Spectrometer

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 (For WFX-210)	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 x 10-12g, Cu≤5 x 10-12g, Mo≤1 x 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

For further information or to place an order for the Atomic Absorption Spectrophotometer - WFX-210 AAS Spectrometer, please CLICK HERE, call us Toll-Free at: 1.877.884.TEST, or click on the "HOW TO ORDER" Button