- %RSD of peak area high.
- %RSD of peak height high.
- Response falling over time.
- Sample syringe leak test fails.
- ACQUITY UPLC Sample Manager - Flow Through Needle PLUS (SM-FTN PLUS)
- ACQUITY UPLC H-Class
Extension loop configured in system volume settings, but no extension loop attached to system.
FIX or WORKAROUND
- Open instrument console.
- Navigate to Sample Manager FTN in the system tree.
- Select Configure from the drop-down menus along the top of the window.
- Select Volumes... from the drop-down menu.
- In the new window, set the extension loop volume to 0.
- Click OK to close the window and accept changes.
- Run sample syringe leak test again to ensure that it passes.