UV/Vis/NIR-Spectroscopy

UV / VIS spectroscopy uses electromagnetic waves from ultraviolet (UV) and visible (VIS) light. In addition, short-wave IR radiation (NIR) can be used. During a measurement, the light absorption of the sample, which is caused by electron transitions between different states in the molecule, is recorded as a spectrum. This can then be evaluated and interpreted.

UV/Vis/NIR-Spectroscope

Perkin Elmer UV/VIS/NIR Spektrometer Lambda 900

Equipment:Perkin Elmer UV/Vis/NIR Spektrometer Lambda 900

Double-beam, double monochromator, ratio recording spectrometer for the UV/Vis/NIR ranges, with PC control

Analytical characteristcs:

Samples: homogeneous fine powder, liquids, surfaces on substrates (max. size approx. 25 x 25 mm²)

Radiation sources: Pre-aligned deuterium and halogen lamps

Grating (monochromator): holographic grating with 1440 lines/mm UV/Vis, 360 lines/mm NIR

Detector: photomultiplier for UV/Vis range, Pletier-cooled PbS for NIR range

Wavelength range: 185 – 3300 nm UV/Vis/NIR, 900 nm UV/Vis

Wellenlength accuracy: 0.08 nm UV/Vis, 0.32 nm NIR

Spectral bandwidth: 0.05 – 5 nm in 0.01 nm UV/Vis, 0.2-20 nm in 0.04 nm NIR

Quantitativ: Ulbricht-spherel