Patent ID: 11965806
Assignee: EVONIK OXENO GMBH & CO. KG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 15:
16. The method according to claim 15, wherein the liquid sample is taken by altering the default position according to the following sequence:
1) the at least one valve of the inert gas portions is opened;
2) the middle port of the third multiport valve is switched to the port that leads to the at least one sample vessel, in order to purge the at least one sample vessel with inert gas, and, if present, a port of the fourth multiport valve that comes from the at least one sample vessel is optionally switched to the middle port of the fourth multiport valve toward the residue outlet;
3) the at least one valve of the inert gas portions is closed;
4) the second multiport valve is set to setting II, wherein the two ports is that are connected to the reservoir vessel are linked to one another, such that the solvent is routed with the aid of the pump from the reservoir vessel directly back to the reservoir vessel without passing through the solvent loop, and the two ports connected to the solvent loop are each linked to one of two ports of the second multiport valve connected to the plurality of conduits of the inert gas portions, such that the solvent present in the solvent loop can be routed via the inert gas portions to the first multiport valve;
5) The first multiport valve is set to setting II, wherein the two ports that are connected via the two interfaces to the sample circuit vessel are linked to one another, such that the solution is routed directly back to the sample circuit vessel without passing through the sample loop, and the two ports that are connected to the sample loop are each linked to one of two ports of the first multiport valve connected to the plurality of conduits, such that the liquid sample present in tile sample loop can be routed via the inert gas portions to the sample distribution unit and then to the at least one sample vessel;
6) tile at least one valve of the inert gas portions is opened;
7) the middle port of the third multiport valve is switched to the port that leads to the residue outlet or, if present, to the fourth multiport valve, wherein when the middle port of the third multiport valve leads to the fourth multiport valve, a port of the fourth multiport valve is switched to the port that leads to the residue outlet; and
8) the at least one valve of the inert gas portions, and the first multiport valve, tile second multiport valve, the third multiport valve, the fifth multiport valve, and, if present, the fourth multiport valve, go back to the default position.