Chaudhary Devi Lal University - Haryana

31744879 supplying installation testing commissioning of evolution one plus spectrophotometer double beam uv visible spectrophotometer cdlu sirsa supplying installation testing commissioning of evolution one plus spectrophotometer double beam uv visible spectrophotometer cdlu sirsa , evolution one plus spectrophotometer double beam uv visible spectrophotometer • microprocessor based uv vis with variable bandwidth for challenging double beam geometry for precision measurements. • precision monochromator should be there for fast scanning data collection and wavelength accuracy. system must also have feature for application focused beam geometry option for microcell or fiber optic probe or better. • wide accessory selection should be available with various temperature control options, sample changers, sippers and solid sampling devices complete our analysis should be available with uv vis spectrophotometer. • spectral bandwidth: variable at least two selection available. • light source: xenon flash lamp with minimum 5 years of lamp life. • detector: dual silicon photodiodes / pmt or better. • scan ordinate modes: =absorbance, % transmittance, % reflectance. • range: 190 to 1100 nm or better • wavelength accuracy: ± 0.5 nm or better and wavelength precision of 0.05 nm / min or better. • scanning speed: < 1 to 6000 nm / min, variable or better and slew speed of atleast 30000 nm / min or better. • data intervals: 10, 5, 2, 1.0, 0.5, 0.2, 0.1 nm or better. • photometric range: > 3.5 a or better • photometric accuracy 1a: ±0.004 a, 2a: ±0.08 a or better. • noise: < 0.00015a or better. • stray light kcl, 198 nm: =1% t, nai, 220 nm: =0.05% t, nano2, 340 nm:<0.05%t. • quartz cell – 10mm – 2 pair. • baseline flatness of 0.001 a or better. • optional system should have an option with peltier controlled at least seven cell changer for temp studies, kinetics etc. should operate from at least 5 to 100 c with 0.5 to 10 degree c ramp rate. • system should have option to upgrade with solid sampling accessory, integrating sphere with minimum of 60 mm sphere, • system must be quoted with film holder to holder film or thin samples. • training & installation at our site should be done free of cost. • warranty at least 2 years or more. • system should be ce & iso certified installation accessories like branded pc, compatible ) , 1 kva ups with 30 mins back up along with latest windows based os s / w should be offered....