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Unstable baseline affects 2695 RI results - WKB246285

Article number: 246285

SYMPTOMS

  • Unstable baseline cause results to shift slightly with each injection

ENVIRONMENT

  • Alliance 2695
  • 2414 Refractive Index Detector
  • GPC
  • THF

CAUSE

Unstabilized THF was poured from new bottle into mobile phase reservoir bottle, causing peroxides to form.

FIX or WORKAROUND

  1. Use THF in its original container as the reservoir bottle.
  2. If unable to use the original container, clean the reservoir bottle between fillings.

ADDITIONAL INFORMATION

 

id246285, 2414, 2414B, 2690, 2690D, 2690DUPGD, 2690UP, 2695, 2695D, 2695DE, 2695DEB, 2695DUP, 2695E, 2695EB, 2695INERT, 2695UP, A-10RI, A-10SSM, A-30RI, ALLCOLCLR, ALLCOLHTR, ALLCOLHTRB, eluent, EMPGPC, GPCV2K, UPRI, UPRIARC

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