ATOMIC ABSORPTION SPECTROPHOTOMETER

LABORATORY EQUIPMENTS

ATOMIC ABSORPTION SPECTROPHOTOMETER:ATOMIC ABSORPTION SPECTROPHOTOMETER • The Atomic Absorption Spectrometer should be true optically double beam with permanently aligned dual atomizers having capability to use both flame and furnace mode of operation simultaneously from one PC controller. The system should provide D2 background correction for flame part and Zeeman background correction for furnace system. • Fast Sequential capability using hollow cathode lamps in the flame mode of operation, where all the elements (as mounted in the lamp holder) in a sample can be analysed in a single aspiration. • The instrument should have fully sealed quartz quoted optics with a good quality of Monochromator with focal length of at least 250 mm having Holographic blazed diffraction grating, wavelength range: 185 – 900nm. Computer controlled adjustments of spectral bandwidth in steps. • The instruments should have P.M.T Detector It should have automatic gas control system. Sensitivity of the instrument for flame operation should not be less than 0.85 A of 5ppm Cu in 5-seconds integration time. • AC Zeeman background correction is required over the wave length range form 185-900 nm . The system should be provided with water cooling devices. Temperature Should be programmable from 40º to 3000ºC. Auto Sampler for Zeeman graphite furnace should have capacity of holding at least 50 samples at a time in 2ml vials should be quoted. Graphite furnace should have built in camera for monitoring real time analysis. • The software should be windows based multitasking with a provision of calibration, recalibration, data storage, data manipulation, reslope, post data run, display of recommended condition, graphs, curves, absorption peaks, background correction inter elemental correction including fault / error finding diagnostic features, statistical parameters and all necessary features. • The accessories required: • 1) Coded Single Element Hollow Cathode Lamps for the elements As, Al, Fe, Ni • 2) Fully PC controlled Hydride Generation Assembly for analysis of hydride forming elements . • 3) 15 KVA Voltage stabilizer • 4) Air Compressor, Gas cylinders with regulators, PC/Printer and Fume hood should include. II Air Conditioner 1.5 tonnes capacity with 3 star rating ---- -----01 set III Work table and Chair ---------- 01 set IV Cabin----- 01 set