Instrument Type:

Autosampler

Related Commands:

Inject

Draw

Description:

The Dispense command causes the autosampler to dispense a specific quantity (volume) from the sample loop or reservoir into a specified sample vial.

When the operation is completed, the autosampler communicates a signal (Sampler.Ready for the ASI-100 Autosampler; Sucked for the GINA 50/GINA 160 Autosamplers) to Chromeleon. The time interval between the Dispense command and the Sampler.Ready response signal can vary, depending on the instrument.

For the AS and AS50 autosamplers, the Dispense command is available only if the autosampler is equipped with the sample preparation option.

Parameters (GINA50 only):

 Position

Sample Position

 Volume

Sample Volume

 Duration

Indicates the minimum time required by the autosampler for the respective operation (also see Duration).

 Tips:

For highly viscous liquids, more time must be allowed for the autosampler to dispense the exact volume.

In manual operation, the commands are selected via the control pull-down of the unit window. When entering the commands for a Program, the three parameters need not be specified. During execution of a PGM File, the missing parameters are replaced by the current sample position, the current inject volume, and by the value 0 (if there is no duration), respectively.