Variable slit width

Topic LCI-USG-0212, 最近更新 11/22/2024

Variable slit width allows the user to balance resolution and throughput to best fit their analysis.

This Alliance iS PDA detector features an actuator-controlled variable slit. The slit width sizes are:

35 µm
50 µm (default)
100 µm
150 µm

Figure 1: Alliance iS PDA variable slits

A small slit provides the sharpest spectral peak resolution while a large slit provides the best signal with respect to noise for improved sensitivity.

Figure 2: Impact of slit width on resolution of benzene

The slits are designed to deliver energy levels proportional to their areas.

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Variable slit width