ATOMIC ABSORPTION SPECTROPHOTOMETER ( AAS ), RAYLEIGH WFX-310/ 320

WFX-310/ 320 Flame Atomic Absorption Spectrophotometer ( AAS ) Manufacturer : RAYLEIGH ISO 9001: 2000 & ISO 4001: 2004 CE-TUV GmbH Features: High cost-effective flame AAS Reasonable design, adopting the same key parts as in high end instruments, ensures basic functions but less automation to provide an economic model for users. Reliable integration of main unit with microprocessor Built-in microprocessor with necessary auto-control and data processing functions achieve high reliability of the instrument Simple and easy operation Eye-catching digital display, multi-function data processing ability and fast function-key direct input realize easy and fast analyses. Main Specification Wavelength range 190-900nm Wavelength accuracy Better than ¡ À 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 0.005A/ 30min Background correction The D2 lamp background correction capability at 1A is better than 30 times Light Source System 2 lamps are powered simultaneously ( one preheating ) Lamp current adjustment 0 ~ 20 mA Lamp power supply mode powered by 400Hz square pulse 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 4 steps Adjustment Manual adjustment for wavelength and slit Flame Atomizer Burner 10cm single slot all-titanium burner Spray chamber Corrosion resistant all-plastic spray chamber Nebulizer High efficiency glass nebulizer with metal sleeve, sucking up rate: 6-7ml/ min Position adjustment manual adjusting mechanism for vertical, horizontal positions and rotation angle of the burner Gas lone protection Fuel gas leakage alarm Detection and Data Processing System Detector R928 Photomultiplier with high sensitivity and wide spectral range Electronic and micro-comp uter Automatic adjustment of light source power. light energy and negative high voltage auto-balace Display mode LED display of energy and measurement values, concentration direct reading Read mode Transient, time average, peak height, peak area. Integral time is selectable 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 range of 1~ 99 Measurement mode Automatic curve fitting with 3~ 7 standards; Sensitivity auto-correction. Result printing Measurement data, working curve, signal profile and analytical condition can all be print out Instrument self-check Check current status of each function key Characteristic Concentration and Detection Limit Air-C2H2 flame Cu: Characteristic concentration¡ Ü 0.025mg/ L, Detection limit¡ Ü 0.006mg/ L; Function Expansion Hydride vapor generator can be connected for hydride analysis Dimensions and weight Main unit 102¡ Á 49¡ Á 54cm, unpacked 80kg