The AS-3000 module enables the LH-3000 to be used as a preparative autosampler. The instrument size is determined by the customer's application, whereby the number of samples is limited by the XY movement of 2800 mm x 670 mm. The sample volume is virtually unlimited, ranging from 1 ml to several liters. As the Z-axis moves up to 400 mm, large sample vessels can be used. The sample and appropriate diluting agent are sucked into a sampling loop. A cleaning station with double cleaning function ensures the sample needle is absolutely clean to prevent carry-over effects.