Thermo Scientific Dionex ICS Series Operator's Manual page 22

Dionex VWD Operator's Manual
the flow cell (12) to the detector (13), where the absorbance of the analyte is
measured and processed.
No. Component
1 Tungsten lamp
2 Mirror (Vis)
3 Deuterium lamp
4 Mirror
5 Filter paddle
14
Figure 2-4. Dionex VWD Optical System
Description
Light source for the visible and near-infrared wavelengths
(345 to 900 nm).
Focuses the light from the tungsten lamp to the through hole
(aperture) of the deuterium lamp.
Light source for the UV wavelengths (190 to 670 nm).
Focuses the combined light of both lamps to the entrance
slit.
Fitted with optical filters to suppress higher-order radiation
and a holmium oxide filter for verification of wavelength
accuracy.
Doc. 065377-01 1/12