二手 PERKIN ELMER Lambda 750 #9266168 待售

Double beam UV / VIS / NIR spectrometer Double monochromator Spectral range: 190 nm - 3300 nm With computer LENOVO Monitor, 23" Optical unit includes: Pre-aligned halogen tungsten Protected reflection optical system (SiO2 Coating) Deuterium lamps (With lifetime counter) With automatic source change Holographic grating monochromator: 1440 Lines / mm UV / Blazed screw at 240 nm and 360 lines / mm NIR blazed at 1100 nm Mounting type littrow Chopper: 46+ Hz Cycle: Black / Sample / Black / Reference Chopper Segment Signal Correction (CSSC) Detector optics with sample thickness compensation R955 Photomultiplier detector with high energy efficiency in UV / VIS spectral range Pelt thermostatted PbS detector for NIR spectral range Variable spectral bandwidths: 0.17 nm to 5.00 nm UV / VIS 0.20 nm to 20.00 nm NIR in 0.01 nm Increments Large sample compartment and detectors With interchangeable modules Technical specifications: Stray light at 220, 340 and 370 nm: <0.0001% T Stray light at 1420 nm: <0.0004% T Stray light at 1690 nm: <0.0015% T Stray light at 2365 nm: <0.002% T Accuracy in wavelength: ± 0.15 nm in UV / Visible ± 0.5 nm in NIR Reproducibility in wavelength: <0.06 nm in UV / Visible <0.1 nm in NIR Photometric accuracy: ± 0.0012 A at 1 A (Double aperture method) ± 0.0006 A at 0.3 A (Double aperture method) ± 0.003 A at 1 A using NIST 930D filter ± 0.003 A at 2 A using NIST 1930D filter ± 0.002 A at 0.5 A using NIST 930D filter Photometric reproducibility: <0.0008 A Photometric range: 6A Photometric stability: <0.0002 A / Hour.