公开(公告)号：US20240319162A1

公开(公告)日：2024-09-26

申请号：US18698885

申请日：2022-10-05

Applicant: Schlumberger Technology Corporation

Inventor： Tyler Stenstrom ,  Farshid Mostowfi ,  Christopher Harrison ,  Graham Drummond ,  Matthew Sullivan

IPC: G01N33/28 ,  G01N21/25 ,  G01N30/20 ,  G01N30/34

CPC classification number: G01N33/2835 ,  G01N21/25 ,  G01N30/20 ,  G01N30/34 ,  G01N33/2823

Abstract: Embodiments presented provide for a method and apparatus for testing a sample fluid for asphaltene deposition. The apparatus provides two testing cylinders and a transfer pump to transfer fluid from the first cylinder to the second cylinder and back again while pressure is varied on the testing fluid, while a spectrometer evaluates the fluid during the pressure variation.

公开(公告)号：US12085584B2

公开(公告)日：2024-09-10

申请号：US16939530

申请日：2020-07-27

Applicant: Waters Technologies Corporation

Inventor： Jeffrey Musacchio

IPC: G01N35/10 ,  G01N35/00 ,  G01N30/20

CPC classification number: G01N35/10 ,  G01N35/0099 ,  G01N30/20 ,  G01N2035/1027 ,  G01N2035/1051

Abstract: Described is a method for loading a sample-vial carrier into a sample manager of a liquid chromatography system. The method includes placing a sample-vial carrier onto a transfer drawer having first and second drawer magnets. The transfer drawer is transported into a sample tray of a sample manager using a drawer drive system of a transfer drawer receiving apparatus. The drawer drive system has a drive magnet that is engaged with the first drawer magnet during transport. The transport of the transfer drawer is terminated when the second drawer magnet is engaged with a sample tray magnet on the sample tray. The sample tray is rotated about an axis substantially perpendicular to a direction of transport of the transfer drawer to provide a shear force to disengage the first drawer magnet from the drive magnet.

公开(公告)号：US12078619B2

公开(公告)日：2024-09-03

申请号：US17288478

申请日：2018-10-26

Applicant: Agilent Technologies, Inc.

Inventor： Thomas Ortmann

IPC: G01N30/20 ,  B01D15/18 ,  G01N30/22 ,  G01N30/46 ,  G01N30/60

CPC classification number: G01N30/20 ,  B01D15/1885 ,  G01N30/22 ,  G01N30/466 ,  G01N30/6043 ,  G01N2030/202 ,  G01N2030/207

Abstract: An injector, for injecting a fluidic sample in at least one selected one of a first sample separation apparatus and a second sample separation apparatus, includes a valve arrangement fluidically connectable to the first sample separation apparatus and the second sample separation apparatus, a sample accommodation volume for accommodating the fluidic sample, and a control unit configured for controlling the valve arrangement so that fluidic sample in the sample accommodation volume is selectively injectable into the selected first sample separation apparatus and/or second sample separation apparatus.

公开(公告)号：US12025593B2

公开(公告)日：2024-07-02

申请号：US17095280

申请日：2020-11-11

Applicant: Waters Technologies Corporation

Inventor： Jason F. Hill ,  Sylvain Gilles Cormier ,  Martin Gilar

IPC: G01N30/20 ,  G01N30/10 ,  G01N30/30 ,  G01N30/34 ,  G01N30/02

CPC classification number: G01N30/20 ,  G01N30/10 ,  G01N30/34 ,  G01N2030/027 ,  G01N2030/201 ,  G01N2030/202

Abstract: Described herein are a selectable flow restriction device and a fluidic network for chromatographic sample dilution during injection. A selectable flow restriction device is used in combination with a splitter to define an adjustable splitter for separating a high-pressure solvent flow into two separate solvent flows having the same solvent composition. The first solvent flow passes to a sample manager where a sample is injected as a discrete fluidic plug at an injection valve into a flow comprising at least one solvent. The second solvent flow is merged downstream from the location of injection with the first solvent carrying the sample fluidic plug. The second solvent flow dilutes the sample plug during the mixture of the two solvent flows.

公开(公告)号：US20240175858A1

公开(公告)日：2024-05-30

申请号：US18070046

申请日：2022-11-28

Applicant: Halliburton Energy Services, Inc.

Inventor： Mathew Dennis Rowe ,  Jhanvi Manishkumar Kevadiya

IPC: G01N33/24 ,  G01N30/20 ,  G01N30/60 ,  G01N30/86

CPC classification number: G01N33/24 ,  G01N30/20 ,  G01N30/6043 ,  G01N30/8679 ,  G01N2030/025

Abstract: Embodiments of multi-column gas chromatography for analysis of a formation sample are disclosed. In one embodiment, an apparatus comprises a gas chromatography instrument and a controller. The gas chromatography instrument comprises a sample injector; a primary column to separate out a hydrocarbon subset; a secondary column valve coupled to the primary column; a primary detector configured to analyze the hydrocarbons of the subset; a heart cutting unit coupled to the secondary column valve and configured to cut, from the subset, at least one isomer having a weight greater than a threshold; a secondary column coupled to an output of the heart cutting unit configured to separate out the at least one isomer; and a secondary detector configured to analyze the at least one isomer. The controller controls the secondary column valve to output the hydrocarbons to the heart cutting unit in response to at least one trigger event.

公开(公告)号：US20240159717A1

公开(公告)日：2024-05-16

申请号：US18384843

申请日：2023-10-28

Applicant: SHIMADZU CORPORATION

Inventor： Masanori FUJIWARA ,  Takafumi NAKAMURA ,  Yuki IIJIMA ,  Kosuke WADA

IPC: G01N30/32 ,  G01N30/20

CPC classification number: G01N30/32 ,  G01N30/20 ,  G01N2030/027

Abstract: A pump unit for a chromatograph includes a plunger pump and an upstream check valve. The plunger pump has a pump head and pumps a mobile phase. The upstream check valve is provided upstream of the pump head. The upstream check valve includes a flow-path portion and a temperature regulator. The flow-path portion guides the mobile phase to the plunger pump. The temperature regulator regulates a temperature of the mobile phase passing through the flow-path portion.

公开(公告)号：US11953472B2

公开(公告)日：2024-04-09

申请号：US17667139

申请日：2022-02-08

Applicant: DIONEX SOFTRON GMBH

Inventor： Thomas Wachinger ,  Christoph Hollnagel

IPC: G01N30/20 ,  B01D15/22 ,  G01N30/02 ,  G01N30/08 ,  G01N30/24 ,  G01N30/46 ,  G01N30/60

CPC classification number: G01N30/20 ,  B01D15/22 ,  G01N30/60 ,  G01N2030/027 ,  G01N2030/085 ,  G01N2030/207 ,  G01N30/24 ,  G01N30/468

Abstract: A system for component interconnection for use in liquid chromatography includes a first switching valve and a second switching valve. A first connecting line fluidly connects the first switching valve to the second switching valve. A second connecting line fluidly connects the first switching valve to the second switching valve. A metering device is located in the first connecting line.

公开(公告)号：US11946913B2

公开(公告)日：2024-04-02

申请号：US17730553

申请日：2022-04-27

Applicant: Agilent Technologies, Inc.

Inventor： Thomas Ortmann ,  Martin Seifried ,  Sam Wouters ,  Irina Spuling

IPC: G01N30/20 ,  G01N30/14 ,  G01N30/32 ,  G01N30/02

CPC classification number: G01N30/20 ,  G01N30/14 ,  G01N30/32 ,  G01N2030/027 ,  G01N2030/326

Abstract: An injector is configured for injecting a fluidic sample from an injector path into a mobile phase in a separation path between a fluid drive and a sample separation unit of a sample separation device. The injector includes a control unit configured for generating a first overpressure in a blocked first partial path of the injector path by a first pressure source, for generating a second overpressure in a blocked second partial path of the injector path by a second pressure source, for subsequently fluidically coupling the first partial path with the second partial path for generating an expansion stroke for releasing a gas bubble in the injector path, and for rinsing the released gas bubble from the injector path.

公开(公告)号：US11940424B2

公开(公告)日：2024-03-26

申请号：US17104772

申请日：2020-11-25

Applicant: Waters Technologies Corporation

Inventor： Timothy M. Raymond ,  Christopher Walden ,  Sean Anderson

IPC: G01N30/32 ,  B01D15/16 ,  G01N30/20 ,  G01N30/34 ,  G01N30/02

CPC classification number: G01N30/32 ,  B01D15/163 ,  B01D15/166 ,  G01N30/20 ,  G01N30/34 ,  G01N2030/027 ,  G01N2030/205 ,  G01N2030/322 ,  G01N2030/328 ,  G01N2030/347

Abstract: Disclosed is a gradient proportioning valve for liquid chromatography that includes a plurality of inlet ports configured to receive a plurality of fluids, a manifold connected to each of the plurality of inlet ports configured to mix the plurality of fluids in a controlled manner to provide a fluid composition, the manifold including a plurality of conduits internal to the manifold, each of the plurality of conduits receiving fluid through a respective one of the plurality of inlet ports, an actuation mechanism having a piston located within a bored structure surrounding the piston, the actuation mechanism configured to open and close at least one of the plurality of conduits in a controlled manner where the piston and the bored structure have a tight tolerance configured to create a fluid tight seal, and a common outlet port configured to receive the fluid composition.

公开(公告)号：US11852616B2

公开(公告)日：2023-12-26

申请号：US17143618

申请日：2021-01-07

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Hana Matouq ,  Mohammed Sajjad Ali

IPC: G01N30/06 ,  G01N30/20 ,  G01N30/88 ,  G01N33/28 ,  G01N25/12 ,  G01N30/02 ,  G01N30/52 ,  B01D3/06 ,  E21B49/08

CPC classification number: G01N30/06 ,  G01N25/12 ,  G01N30/20 ,  G01N30/88 ,  G01N33/2823 ,  B01D3/06 ,  E21B49/088 ,  G01N2030/025 ,  G01N2030/065 ,  G01N2030/201 ,  G01N2030/522 ,  G01N2030/8854

Abstract: A system includes a phase behavior analysis unit having a housing, a heating system connected to the housing and arranged to heat an interior of the housing, a pressure cell positioned in the interior of the housing, and a three-way valve with one inlet fluidly connected to a chamber in the pressure cell and two outlets. The system also includes a gas chromatograph that is fluidly coupled to the chamber in the pressure cell via the three-way valve.