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ChromeGate 3.3.2 Software Manual - KNAUER Advanced Scientific ...

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246 ChromGate® Preparative Option<br />

created and the parameter window for this line is opened. The time, level,<br />

and slope values are automatically inserted. Complete the parameter<br />

settings as necessary close the parameter window. Repeat this as often<br />

as different events has to be programmed. For all lines, added in this<br />

way, as a comment “DC operation” will be displayed.<br />

Fig. 351 Programming the fraction table<br />

In Fig. 352 an example for the fraction program of the above<br />

chromatogram is shown.<br />

Fig. 352 Example for a fraction table<br />

The colored squares below the graph are to indicate the status in running<br />

methods and for fraction tracing. However, those aspects will be<br />

described later in the chapter instrument status of a (running) control<br />

method (page 137).<br />

Pretreatment<br />

The pretreatment option is only shown, if a recycling valve has been<br />

selected in the fraction collector configuration dialog. If you enable the<br />

pretreatment check box, the button Setup… is accessible. If you click on<br />

the button, the pretreatment configuration window will open. Here you<br />

can select the position of the recycling valve, if any other device runs a<br />

pretreatment. The choices are Waste and Slv. Recycling.

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