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Waters

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+

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