With ACQUITY Arc, baseline ripples during gradient - WKB108324
Article number: 108324
SYMPTOMS
- The baseline ripples during the gradient
- Leak test successful
- No pressure abnormalities seen during run
ENVIRONMENT
- ACQUITY Arc
- 2998 Photodiode Array Detector
- 2489 UV/Vis Detector
CAUSE
The pump stroke volume is high.
FIX or WORKAROUND
- When using the Path 1 flow path, set the stroke volume to 132 μL (default).
- When using the Path 2 flow path, set the stroke volume to 66 μL.
ADDITIONAL INFORMATION
id108324, 2489, 2489B, 2489SFC, 2998, 2998B, 2998SFC, A-10PDA, A-10UV, baseline noise, UPAQSM, UPARBQSM, UPARBSMFTN, UPARCH30, UPARHQSM, UPARQSM, UPARSMFTN, UPPDAARCB