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Empower GPC calibration curve has less points than expected - WKB86053

Article number: 86053

SYMPTOMS

  • GPC Calibration curve does not have the correct amount of calibration points expected
  • Processing method worked previously
  • Inhibit integration event is present in the processing method
  • Flow rate was recently adjusted so the peaks have shifted slightly, including a negative water peak after the peaks of interest

ENVIRONMENT

  • Empower 3
  • GPC

CAUSE

The chromatogram had a large negative peak after the final peak. The inhibit integration function did not begin until after the negative peak, resulting in the integration to be incorrect affecting the amount of peaks integrated, therefore reducing the amount of points

FIX or WORKAROUND

  1. Adjust inhibit integration parameter to begin before the negative peak.
  2. Save processing method.
  3. Reprocess the data.

ADDITIONAL INFORMATION

 

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