Why is there sensitivity loss in my AB Sciex QTRAP 4500 LC/MS/MS system?
- BbgrantAug 2, 2025
Sensitivity loss in your AB Sciex Laboratory Equipment can occur due to several reasons. It might be caused by a dirty curtain plate or a dirty orifice plate. Clean the curtain plate as described on page 124 of the manual. Also, clean the front of the orifice plate as described on page 124 of the manual. If the QJet® ion guide, Q0 or IQ0 is dirty, contact an FSE or the local Qualified Maintenance Person. Another possible reason is that the instrument or ion source requires tuning and optimizing. For more information, refer to the Operating Instructions — Tune and Calibrate on page 49, Ion source Operator Guide, and the Analyst® software Help system.