Detector Control
Performing Cyclic Voltammetry

The ICS-3000 ED or ICS-5000 ED can be used for Cyclic Voltammetry (CV) detection. This mode is available only by issuing commands from a Control Panel. Cyclic voltammetry commands cannot be programmed into a PGM File.

 Note:  

A 3D data license is required to acquire and process cyclic voltammetry data.

Before you begin:

Data from a CV run is stored in the manual sequence in the timebase. In order to ensure all data is saved and data from one cyclic voltammetry run does not overwrite the data from a previous run, make sure the datasource does not have multiple sample status enabled. To do this:

  1. On the Browser, right-click the datasource name and select Properties from the context menu.

  2. On the General tab page, clear the Enable Sample Status Multiple check box, if it is selected.

  3. In the manual sequence, select Single for the Sample Status of the manual sample. Press Enter.

  4. Select Save on the File menu to save the sequence change.

Setting up and starting the CV run:

  1. On the panel tabset, click the EC Detector tab, or on the Browser, open the ED control panel and connect to the Timebase in which the ED is configured; see How to: Controlling Devices from the Control Panel  Opening a Control Panel.

  2. Enter the following CV parameters:

CV Cycle Time

Enter the time in seconds for one CV cycle; ( this is the time it takes to go from the CV Low Voltage to the CV High Voltage and then back to the CV Low Voltage. This creates a triangle Waveform.

CV Low Voltage

Enter the lowest voltage to be applied during the CV cycle. This voltage begins and ends the cycle.

CV High Voltage

Enter the highest voltage to be applied during the CV cycle. This is the peak of the triangle waveform.

CV Cycles

Enter the number of times (2 or more) to repeat the CV cycle

  1. To start the CV run, click Start CV. The Mode automatically switches to CV.

  2. The run continues until all of the specified CV Cycles are completed. At the end of the run, the mode, waveform, and voltage settings that were in effect before the start of the CV run are restored.

  3. After the run is complete, view the data in the CV view window (see  Viewing Cyclic Voltammetry Data).