Possible cause

Solution

Incorrect or contaminated eluent

Remake the eluent, using concentrated eluent and ASTM filtered, Type I (18.2 megohm-cm) deionized water that meets the specifications listed in Deionized water requirements for IC.

Contaminated or degraded sample

Take appropriate precautions when preparing and storing samples to prevent contamination and degradation (see Preparing samples).

Contaminated column

Procedure

  1. Clean the column as instructed in the column manual.
  2. If the problem persists, replace the column.