Carryover for protein samples - SM-FTN - WKB91428
Article number: 91428
SYMPTOMS
- Carryover when injecting large proteins.
- No carryover for smaller peptides.
ENVIRONMENT
- ACQUITY UPLC H-Class Bio
- ACQUITY UPLC H-Class PLUS Bio
- ACQUITY UPLC I-Class Bio
CAUSE
Sample interacts with MP35N needle surface.
FIX or WORKAROUND
Replace needle and vespel seal. Use stainless steel Sample Needle Kit, 15µL Textured (PLUS) (# 700011628) if MP35N Sample Needle Kit, 15µL Textured (Bio PLUS) (# 700011658) gives carryover.
ADDITIONAL INFORMATION
id91428, A-30SM, UPISMFTN, UPPFTN, UPSMFTN, UPSMFTN+