Characterizations
UV-Vis Spectrometer
Main features of the Perkin-Elmer Lambda 9 spectrometer
- range of the instrument: 185-3200 nm (54054-3125 cm-1)
- able to acquire transmittance and reflectance spectra
Sources
- UV range: prealigned deuterium lamp
- Vis and NIR range: prealigned tungsten-halogen lamp
- automatic changing source during monochromator slewing
Optical system
- all-reflecting, double-beam, double-monochromator
- two monochromators in series in Littrow configuration
- each monochromator has two gratings with automatic grating changing during monochromator slewing
- UV-VIS range: 1440 lines/mm
- NIR range: 360 lines/mm
Detectors
- UV-VIS range: side window photomultiplier
- NIR range: PbS detector
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