ET130  IC/HPLC C4D Detector Headstage

ET130 IC/HPLC C4D Detector Headstage
ET130 IC/HPLC C4D Detector Headstage
  • Conductivity detector for IC, HPLC and FIA
  • Conductivity range: 150 µS/cm to 15 mS/cm
  • Excellent peak resolution


The ET130 is contactless conductivity detector for ion chromatography, HPLC and flow injection analysis. It must be connected to either the ER225, ER815 or ER825 hardware units.

It has a large conductivity range of 150 µS/cm to 15 mS/cm. The C4D electrodes spacing is set to a minimum to resolve analyte peaks.

Detection is contactless: the sample doesn't come into contact with the detector electrodes, so it is easy to analyse hazardous, corrosive or radioactive liquids. There is no electrode deterioration or polarization. It can be used with many tubing materials, including PEEK and PTFE (Teflon). The tubing from the IC/HPLC instrument can either be slid directly into the headstage (it designed for tubing with 125 µm ID and 1600 µm OD) or it can be connected to the tubing provided inside the headstage.

The ET130 is in the same family as the:

  • ET125 General Purpose C4D Monitor Headstage.
  • ET131 Configurable C4D Detector/Monitor Headstage.

Research Areas

Application Notes


  • Quantitative Characterisation of Conductive Fibers by Capacitive Coupling.  Andres Ruland, Rouhollah Jalili, Attila J. Mozer, and Gordon G. Wallace.  Analyst, 2017.  DOI: 10.1039/C7AN00442G
  • Suspension Catalysis in Slug Flow Microreactor – Experimental and Numerical Investigation of Mass Transfer.  Frederik Scheiff, Frank Neemann, Sylwia J. Tomasiak, Prof. David W. Agar.  Chemie Ingenieur Technik, 86, 4, 504–518, 2014.  DOI: 10.1002/cite.201300131
  • Exploring the possibilities of capacitively coupled contactless conductivity detection in combination with liquid chromatography for the analysis of polar compounds using aminoglycosides as test case. Péter Jankovicsa, Shruti Chopraa, Mohamed N. El-Attuga, Deirdre Cabootera, Kris Wolfsa, Béla Noszálb, Ann Van Schepdaela, Erwin Adams.  Journal of Pharmaceutical and Biomedical Analysis.  2014. DOI: 10.1016/j.jpba.2014.12.015
  • Contactless Conductivity: An HPLC Method to Analyze Degree of Methylation of Pectin.  Gary A. Luzio, and Randall Cameron. Proceedings of the Florida State Horticultural Society, 123, 213–216. 2010.


Photos[ click on the thumbnails below to view large images ]

ET125-130-131 no cable ET125-130-131 with ruler length ET125-130-131 with ruler width ET125-130-131 no cable


A procedure for C4D analysis in PowerChrom software
The C4D Profiler in PowerChrom software to optimise C4D settings

View more related videos on the Screencast Training Videos Wiki

  • Conductivity range: 150 µS/cm to 15 mS/cm
  • Electrode ID: 1.6mm
  • Electrode Gap: 4mm