Ion chromatography IC

The ion chromatography (IC or HPIC) is a method of liquid chromatography. Here the mechanism is based on a separation by ionic interactions. The stationary phase of the column is a material that contains ion exchange functional groups. Strongly acidic ion exchanger, e. g. based on sulfonic acid residues interact with cations and basic ion exchanger are based on quaternary ammonium salts and exchange anions. Both methods of ion chromatography are offered. Thus, ion chromatography is suitable for qualitative and quantitative analysis of mixtures of ionic compounds.

An IC instrument consists typically on an isocratic pump, an injection system (automatic or manual), a high-resolution ion exchange column, a suppressor, and a detector for electric conductance.
(in cooperation with the University of Applied Sciences Merseburg)

Sample Preparation

  • Required sample amount: minimum 2 ml
  • Sample solution will be filtered (0.2 µm syringe filter) and in injected into the IC 

Testing Conditions

  • Dionex DX 120 / Dionex ICS-1500
  • Electric conductance detector
  • Measurement at room temperature
  • Only dissolved samples can be investigated


Prof. Dr. Valentin Cepus
Telefon: +49 (0)3461 30889-51



  • Quantitative and qualitative analysis of mixtures of ionic compounds