SAMPLING DEVICE

摘要

The invention relates to a sampler for providing a sample for high-performance liquid chromatography, in which a volume of liquid to be taken up into a cylinder can be aspirated by means of a first drive and can be compressed to a high pressure level by means of a second drive independent of the first drive or can be decompressed from this level in a controlled manner.

主权项

1. A sampling device for collecting and dispensing a sample volume for liquid chromatography, the sampling device comprising:
a) a piston in a cylinder, b) the piston configured to be movable along a cylinder axis to collect the sample volume in the cylinder, c) two drives configured to generate different piston forces on the piston, in which the two drives are independent of each other, each drive is configured to be coupled to and uncoupled from the piston independently of a respective other drive.