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Waters

Baseline noise in 2414 - WKB26125

Article number: 26125

SYMPTOMS

  • High baseline noise in 2414
  • Sample and reference flow cell thoroughly purged
  • Temperature set on the column and on the detector
  • Very low pump pressure ripple

ENVIRONMENT

  • 2414 RID
  • 2695 Pump

CAUSE

The mobile phase is mixed by the 2695 pump, generating slight turbulence that you can see in the 2414 chromatogram baseline.

FIX or WORKAROUND

Pre-mix the mobile phase in a bottle.

ADDITIONAL INFORMATION

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