Device and method for freezing a measurement sample as well as freezing point osmometer and method for the osmometric determination of a measurement sample

摘要

The invention relates to a device and a method for freezing a measurement sample (1). The device has the following: a sample container (2) which is set up to receive a measurement sample (1) of a liquid to be determined; a cooling device (5) which is set up to cool the measurement sample (1) in the sample container (2) without freezing; an electrode (12) in which a first end section (14) is immersed in the measurement sample (1); a counter electrode (13) which has a second end section (18) assigned to the first end section (14); and a voltage device (11) which is connected to the electrode (12) and the counter electrode (13) and is set up to provide voltages of opposite polarity to the electrode (12) and the counter electrode (13), the voltage device (11) for triggering a Freezing process in the freeze-free cooled sample (1) can be switched by means of an arc to form the arc between the first end section (14) of the electrode (12) and the second end section (18) of the counter electrode (13). Furthermore, a freezing point osmometer and a method for the osmometric determination of a measurement sample are created