Controlling the Eluent Generator ConcentrationIC Control
Controlling the Eluent Generator Concentration
The eluent concentration generated by the Eluent Generator can be set manually or controlled via a Program. The allowable eluent concentration depends on several factors, including the flow rate, suppressor type, eluent generator cartridge type, and cartridge configuration (in systems that support dual-cartridge configurations). See How to: IC Control 
Maximum Concentration Ranges for Eluent Generators for details.
To determine the eluent concentration required for your application, refer to the column manual. Dionex column manuals are included on the Dionex Reference Library CD-ROM.
Manually Setting the Eluent Generator Concentration
Open the control panel for the Timebase; see How to: Controlling Devices from the Control Panel Opening a Control Panel.
Enter the value into the Concentration edit field. Note: On some control panels, the field is labeled Target Concentration.
Alternatively, select Command on the Control menu to open the Commands dialog box. Under EluentGenerator, select the Concentration command, and enter the value.
The Applied Concentration field on the control panel displays the concentration of eluent currently being generated. When the eluent generator is on, the Applied Concentration and the Target Concentration are typically equal, except in these situations:
During a gradient run, the Applied Concentration indicates the currently generated (instantaneous) concentration, which changes as the ramp progresses. The Target Concentration is the concentration to be achieved at the end of the ramp.
For carbonate/bicarbonate eluent, the Applied Concentration for the K2CO3 cartridge is equal to the total of the target concentrations from both cartridges.
For carbonate/bicarbonate eluent:
Applied Concentration K2CO3 = Target Concentration K2CO3 + Target Concentration Electrolytic pH Modifier
Programming the Eluent Generator Concentration
Commands for setting the eluent concentration can be added to a program (see Control The Control Program).
You can use the Program Wizard to enter the concentration command(s). With the wizard, you can enter a single concentration value for the entire analysis or program a ramp or multi-step gradient in which the generated concentration of eluent changes over time. When completing the wizard, click the Help button on the EluentGenerator Options tab page to display details about the eluent generator and gradient options.
Note:
The ICS-2000/ICS-2100 Gradient Generation license is required in order to create eluent gradients with either the ICS-2000 or ICS-2100.