Patent ID: 11862449
Assignee: UT-BATTELLE, LLC
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 11:
12. A system for sampling a sample liquid, comprising:
a sample fluid conduit comprising a sample fluid flow channel, the sample fluid conduit comprising a membrane comprising pores, the membrane preventing the passage of the sample liquid through the pores at a first pressure of the sample liquid in the sample fluid flow channel of the sample fluid conduit;
a solvent conduit for flowing a solvent to contact the membrane;
a pressure control system for establishing a second pressure within the solvent in contact with the membrane through the solvent conduit, the second pressure being lower than the first pressure of the solvent, and wherein at the first pressure the solvent conduit supplies solvent to the membrane and at the second pressure the solvent conduit removes solvent from the membrane, thereby drawing sample liquid through the pores of the membrane by the pressure differential of the first pressure of the sample fluid and the second pressure of the solvent, wherein the extracted sample liquid is combined with the flowing solvent composition and flows into an open end of the solvent conduit and removes the combined extracted sample liquid and solvent composition.