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Alliance iS HPLC Systems User Guide
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Alliance iS HPLC Systems User Guide
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PDA detector optics

PDA optics assembly light path

PDA optics assembly light path
Topic LCI-USG-0219, Last Updated 11/07/2024

The detector employs an extremely efficient design for exceptionally high light throughput.

The detector operates as follows:

  1. The light emitted by the deuterium lamp is refocused by an elliptical mirror into the flow cell.
  2. The light beam then expands to fill the grating, which separates the beam into its component wavelengths and then refocuses those onto the PDA sensor.

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