Inconsistent area counts when injecting standards using ACQUITY UPLC system - WKB2781
Article number: 2781
SYMPTOMS
- Replicate 5-µL PLUNO injections of standards
- Preslit septa on vials with inserts
- Syringes primed
- Leak tests pass
ENVIRONMENT
- ACQUITY UPLC system
- Quattro Premier XE
- MassLynx 4.1
CAUSE
Air bubble at the bottom of the vial insert
FIX or WORKAROUND
Add the standard solution slowly to the vial to prevent an air bubble from forming at the bottom.
ADDITIONAL INFORMATION
id2781, MLYNX, MLYNXV41, QUATPREMXE, QUPREMIER, SUPMM, UPBINARY