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Waters

Peak area and heights are decreasing and it appears that the H-Class FTN sample manager is not aspirating the correct amount of sample - WKB29757

Article number: 29757

SYMPTOMS

  • Response is decreasing.
  • Injection accuracy is poor.
  • Leak test for sample manager passes.
  • Needle Seal Readiness Test passes.

ENVIRONMENT

AQUITY H-Class UPLC system

CAUSE

Possible air in the system.

FIX or WORKAROUND

Prime the wash solvent for 60 seconds and then purge solvent for 20 cycles.

ADDITIONAL INFORMATION

 

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