Suppressor

A suppressor is a device used in ion chromatography to reduce the background signal from the eluent while increasing the analyte response when using a conductivity detector. Ion chromatography requires eluents that contain electrolytes, which can interfere with the detection of the ionic analytes of interest. The suppressor uses a combination of ion exchange and chemical or electrolytic regeneration to neutralize or suppress the electrolytes in the eluent. The analyte, on the other hand, generally is converted to a more conductive acid or base form.

Dionex offers suppressor products based on several patented suppression technologies. These products include the Atlas Electrolytic Suppressor, the Self-Regenerating Suppressor, and the MicroMembrane Suppressor. For more information, refer to the appropriate product manual.

For more information, refer to Practical Tips for Device Control:

  Controlling a Suppressor

 Setting Atlas Suppressor Currents

 Setting SRS Suppressor Currents

 Setting SRS-MPIC Suppressor Currents

 Controlling an MMS Suppressor