Print Print
Alliance iS HPLC Systems User Guide
Contents Contents
Alliance iS HPLC Systems User Guide
Download PDF Download PDF
PDA detector features

Variable slit width

Variable slit width
Topic LCI-USG-0212, Last Updated 11/07/2024

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.

Need Help? Connect with a Waters expert. 

Create Support Request

To avoid risk of personal injury and to prevent damage to laboratory equipment, always operate your Waters products in accordance with the applicable operational and safety information, your organization’s standard operating procedures, and local regulations.

Refer to the English version of this page for the latest information.

Back To Top Back To Top