- RSD is about 3%, but the customer's spec is 2%
- Injection volumes are accurate
- Alliance 2695 Separations Module
Dirty system or inadequate purging injector
FIX or WORKAROUND
- Prime and purge solvent lines and injector several cycles.
- Perform compression check, verify it passed.
- (Optional) Perform weight injection accuracy check, verify it passed.
- Perform 10 large-volume injections of methanol, followed by 10 large-volume injections of water.
- Rerun standards to retest the %RSD.