Poor %RSD for ACQUITY UPLC, though it passes sample syringe leak test - WKB123188
Article number: 123188
SYMPTOMS
- Poor peak area %RSD for ACQUITY UPLC (0.5%-1.0%)
- Passes sample syringe leak test
- Passes characterize needle and loop volume three times, with 0 μL difference
ENVIRONMENT
- ACQUITY UPLC
- ACQUITY UPLC Sample Manager
CAUSE
Syringe developed an uneven spot, below where it stops to run the leak test.
FIX or WORKAROUND
Replace the sample syringe.
ADDITIONAL INFORMATION
id123188, UPBINARY