# US 12,007,034 B2 · Injection valve for an analysis apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,007,034 B2 - Document ID: US12007034B2 - Status: Granted - Kind: B2 - Application number: 17/424,861 - Filed: 2019-01-22 - Published: 2022-03-24 - Granted: 2024-06-11 - Earliest claimed: 2019-01-22 - Assignees: TotalEnergies Onetech (previously TotalEnergies One Tech) - Applicants: Total SE - Inventors: Gilles Couchou-Meillot - Web page: https://patentgrep.com/patent/US12007034B2 ## CPC - F16K 11/0743: {with both the supply and the discharge passages being on one side of the closure plates} - F16K 27/045: {with pivotal obturating members} - G01N 30/20: using a sampling valve - G01N 2030/202: {rotary valves} - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) ## Abstract The present invention relates to an injection valve for an analysis apparatus comprising an analysis column, the injection valve comprising a rotative body compressed against a base by a compressive element, the rotative body comprising a lower surface in contact with the base and at least one recess on the lower surface configured to receive a fluid sample, wherein the base comprises a vaporization chamber which comprises an injection conduit having an upper end and a lower end, the vaporization chamber further comprising a carrier phase inlet in fluid communication with the injection conduit, wherein the injection conduit is configured for being in fluid communication with the analysis column of the analysis apparatus via the lower end when the injection valve is mounted on the analysis apparatus, and wherein, in an injection configuration of the rotative body, the recess is in fluid communication only with the injection conduit, via the upper end thereof. The present invention further relates to an analysis set comprising said injection valve and to a method of analyzing a fluid in said analysis set. ## Claims ### Claim 1 An injection valve for an analysis apparatus comprising an analysis column, the injection valve comprising a rotative body compressed against a base by a compressive element, the rotative body comprising a lower surface in contact with the base and at least one recess on the lower surface configured to receive a fluid sample, wherein the base comprises a vaporization chamber which comprises an injection conduit having an upper end and a lower end, the vaporization chamber further comprising a carrier phase inlet in fluid communication with the injection conduit, wherein the injection conduit is configured for being in fluid communication with the analysis column of the analysis apparatus via the lower end when the injection valve is mounted on the analysis apparatus, and wherein, in an injection configuration of the rotative body, the recess is in fluid communication only with the injection conduit, via the upper end thereof. ### Claim 2 (depends on 1) The injection valve according to claim 1, wherein the recess has a diameter parallel to the lower surface of the rotative body which is equal to or lower than 1 mm and/or wherein the recess has a depth perpendicular to the lower surface of the rotative body which is from 0.1 to 1 mm. ### Claim 3 (depends on 1) The injection valve according to claim 1, wherein the recess is configured to accommodate a volume of fluid sample from 0.05 to 0.5 μL. ### Claim 4 (depends on 1) The injection valve according to claim 1, wherein the rotative body comprises more than one recesses, wherein, each recess is in fluid communication only with the injection conduit via the upper end thereof, in various respective injection configurations of the rotative body. ### Claim 5 (depends on 4) The injection valve according to claim 4, wherein the more than one recesses have the same diameter parallel to the lower surface of the rotative body and different depths perpendicular to the lower surface of the rotative body. ### Claim 6 (depends on 4) The injection valve according to claim 4, wherein the more than one recesses are configured to receive different volumes of fluid sample. ### Claim 7 (depends on 1) The injection valve according to claim 1, wherein the compressive element comprises a plurality of washers, at least one piston and at least one rotation element. ### Claim 8 (depends on 1) The injection valve according to claim 1, wherein, in the injection configuration, the totality of the recess faces the upper end of the injection conduit. ### Claim 9 (depends on 1) The injection valve according to claim 1, wherein the carrier phase inlet is connected to the injection conduit adjacent to the upper end thereof. ### Claim 10 (depends on 1) The injection valve according to claim 1, wherein the base comprises at least one sample inlet channel and at least one sample outlet channel, and wherein the recess is in fluid communication with the sample inlet channel and the sample outlet channel in a sampling configuration of the rotative body. ### Claim 11 (depends on 1) The injection valve according to claim 1, wherein the base comprises at least one solvent inlet channel and at least one fluid solvent outlet channel, and wherein the recess is in fluid communication with the solvent inlet channel and the solvent outlet channel in a washing configuration of the rotative body. ### Claim 12 (depends on 1) An analysis set comprising an analysis apparatus comprising an analysis column, and the injection valve of claim 1 mounted thereon. ### Claim 13 (depends on 12) The analysis set according to claim 12, wherein the analysis apparatus is a gas chromatography apparatus. ### Claim 14 (depends on 12) A method of analyzing a fluid in the analysis set of claim 12, wherein: a fluid sample is loaded into the recess when the rotative body is in the sampling configuration; the injection conduit is continuously swept by a carrier phase; the rotative body is rotated to the injection configuration; the fluid sample is transferred to the analysis column via the injection conduit owing to the carrier phase. ### Claim 15 (depends on 14) The method according to claim 14, wherein the carrier phase is a carrier gas. ### Claim 16 (depends on 14) The method according to claim 14, wherein the injection conduit is at a temperature from 15 to 300° C., and/or wherein the injection conduit is heated and/or the carrier phase is preheated prior to sweeping the injection conduit. ### Claim 17 (depends on 14) The method according to claim 14, wherein the fluid sample is at a pressure from 1 to 800 bar, when it is loaded. ### Claim 18 (depends on 14) The method according to claim 14, wherein the pressure within the injection conduit is from 0.5 to 2.0 bar. ### Claim 19 (depends on 14) The method according to claim 14, wherein the fluid is a hydrocarbon fluid. ### Claim 20 (depends on 14) The method according to claim 14, which is implemented inside a well drilled in a subterranean formation, the fluid being a hydrocarbon fluid collected from the subterranean formation.