公开(公告)号：US12092620B2

公开(公告)日：2024-09-17

申请号：US17623482

申请日：2019-07-03

申请人： Omniscent Inc.

发明人： Yutao Qin ,  Yogesh B. Gianchandani

IPC分类号： G01N30/60 ,  G01N30/30 ,  G01N30/40 ,  G01N30/54 ,  G01N30/02

CPC分类号： G01N30/6095 ,  G01N30/30 ,  G01N30/40 ,  G01N30/54 ,  G01N2030/025 ,  G01N2030/303 ,  G01N2030/3061

摘要： An improved gas chromatography system is presented. The system comprises: an enclosure having an inlet and an outlet, such that the ventilation flow is from the inlet to the outlet; a chamber disposed in the enclosure; a monolithic gas analyzer disposed in the chamber and a temperature control unit disposed in physical contact with the chamber. The monolithic gas analyzer operates to separate and detect molecules from a gas; whereas, the temperature control unit is configured to control temperature inside the chamber.

公开(公告)号：US12050210B2

公开(公告)日：2024-07-30

申请号：US17433119

申请日：2020-02-27

申请人： Hitachi High-Tech Corporation

发明人： Makoto Nogami ,  Yusuke Shimizu ,  Daisuke Akieda ,  Kenichiro Nishiki

IPC分类号： G01N30/54 ,  B01D15/16 ,  G01N30/30 ,  G01N30/60

CPC分类号： G01N30/54 ,  G01N30/30 ,  G01N30/6047 ,  G01N30/6091 ,  B01D15/161 ,  G01N2030/3084

摘要： An analysis apparatus column oven equipped with a plurality of columns is capable of efficiently performing heat conduction on column basis, recognizing a column cartridge that holds a column, and being easily exchanged on column basis. The column change mechanism includes a ferrule, a movable ferrule connector, a pipe, a fastener pull, a fastener fitting, a column cartridge presser, a slide guide, an RFID reader, a fixed wall, a column changer heat insulating member, a fixed bottom plate, a receiver, and a fixed fitting. A plurality of column cartridges can be installed in the heat block, and are in contact with the column heat block to control the temperature in the column cartridges. The column cartridge is fixed between left and right column change mechanisms, and when the fixed column cartridge is opened, the column change mechanism on the left side is moved leftward and opened.

公开(公告)号：US12000813B2

公开(公告)日：2024-06-04

申请号：US17781593

申请日：2020-02-28

申请人： SHIMADZU CORPORATION

发明人： Masashi Yamane ,  Kiyonori Koga

IPC分类号： G01N30/32 ,  G01N30/54 ,  G01N30/86

CPC分类号： G01N30/8658 ,  G01N30/32 ,  G01N30/54 ,  G01N2030/324

摘要： A gas chromatograph is provided with: a sample gas generator; a separation column; a detector; a plurality of gas supply sources; a switching unit; a regulator; and an out-of-gas determination unit. After the out of gas determination unit has determined that the out of gas has occurred in the gas supply source supplying the carrier gas to the sample gas generator, it is configured to perform a column protection operation for changing the gas supply source fluidly connected to the sample gas generator by the switching unit.

公开(公告)号：US11567041B2

公开(公告)日：2023-01-31

申请号：US15636362

申请日：2017-06-28

申请人： PERKINELMER HEALTH SCIENCES, INC.

发明人： Edgar D. Lee ,  Nathan L. Porter ,  Anthony D. Rands ,  Randall W. Waite

IPC分类号： G01N30/30 ,  G01N30/54 ,  G01N30/00 ,  G01N30/72

摘要： A system and method for performing field-portable GC/MS measurements for the rapid sampling and measurement of high temperature boiling semi-volatile organic compounds in environmental samples, wherein other column bundles have cold spots that may prevent high temperature boiling semi-volatile components from eluting the GC column, this new design may eliminate those cold spots on the GC column.

公开(公告)号：US20210404999A1

公开(公告)日：2021-12-30

申请号：US17294451

申请日：2019-09-06

申请人： SHIMADZU CORPORATION

发明人： Masaru KOZAKURA ,  Hiroki KAJI

IPC分类号： G01N30/54 ,  G01N30/30

摘要： The gas chromatograph system 10 has the gas chromatograph 1, and a detector 2. The detector 2 has the redox unit 14. The redox unit 14 has the reaction tube 142, the oxidation zone 146 and the reduction zone 147. The reduction zone 147 is disposed on the downstream side of the oxidation zone 146. The reduction zone 147 is disposed out of a position perpendicular direction above the oxidation zone 146. Hence, even if the air heated around the oxidation zone 146 moved upward by convection, the reduction zone 147 is prevented from being exposed to such hot air.

公开(公告)号：US11073503B2

公开(公告)日：2021-07-27

申请号：US16040657

申请日：2018-07-20

申请人： Molex, LLC

发明人： Wenfeng Peng ,  Alexander S. Chernyshov

IPC分类号： G01N30/54 ,  G01N33/00 ,  B01D53/04 ,  G01N30/02 ,  B01D53/30

摘要： An area monitoring device is placed in a location to monitor volatile organic compounds emissions. The device includes a gas sensor capable of detecting VOCs, a sorbent material capable of absorbing VOC molecules, and a heating element positioned in close relation to, or in direct contact with, the sorbent material. After a period of time during which the sorbent material absorbs VOC molecules, the sorbent material is heated to cause the sorbent material to release a gas containing VOC molecules. The amount of released VOC molecules is sensed and calculated. Data is compiled and analyzed. This is accomplished without removing the device from the location. A pump may be provided to force ambient air through the device.

公开(公告)号：US11022350B2

公开(公告)日：2021-06-01

申请号：US16384117

申请日：2019-04-15

申请人： Supercritical Fluid Technologies, Inc.

发明人： Kenneth Joseph James ,  Brian Jeffrey Waibel ,  Kenneth Richard Krewson ,  Chinedu David Chikwem ,  Daniel Alan Brisach ,  Kim Ferrera ,  Curtis Ebersold

IPC分类号： F25B25/00 ,  F25B9/00 ,  F25B49/02 ,  G01N30/30 ,  G01N30/54 ,  F25B7/00 ,  B01D15/16 ,  B01D15/40 ,  B04C5/081 ,  B04C5/085 ,  B04C9/00 ,  C07C45/79 ,  C07C51/47 ,  C07C67/56 ,  C07C231/24 ,  C09K5/04 ,  F25B9/10 ,  G01N30/20

摘要： Provided is a chiller and system that may be utilized in a supercritical fluid chromatography method, wherein a non-polar solvent may replace a portion or all of a polar solvent for the purpose of separating or extracting desired sample molecules from a combined sample/solvent stream. The system may reduce the amount of polar solvent necessary for chromatographic separation and/or extraction of desired samples. The system may incorporate a supercritical fluid chiller, a supercritical fluid pressure-equalizing vessel and a supercritical fluid cyclonic separator. The supercritical fluid chiller allows for efficient and consistent pumping of liquid-phase gases employing off-the-shelf HPLC pumps. The pressure equalizing vessel allows the use of off-the-shelf HPLC column cartridges. The system may further incorporate the use of one or more disposable cartridges containing silica gel or other suitable medium. The system may also utilize an open loop cooling circuit using fluids with a positive Joule-Thompson coefficient.

公开(公告)号：US20210116430A1

公开(公告)日：2021-04-22

申请号：US17072714

申请日：2020-10-16

申请人： MRIGlobal

发明人： Eric Peters ,  Louis Anderson ,  Charmel Grisham ,  Sara Paalhar ,  Sylvanna Couch

IPC分类号： G01N30/74 ,  G01N30/54 ,  G01N30/06

摘要： A gas chromatography instrument is provided that is capable of analyzing samples both quickly and accurately. The detector includes a first unit and a second unit that alternate between collection mode and desorption mode. This allows one unit to collect the sample, while the other unit desorbs another sample before the units switch operations. The alternating collection and desorption modes allows the detector to generate a data point approximately every thirty seconds, with each alternating unit.

公开(公告)号：US20210025856A1

公开(公告)日：2021-01-28

申请号：US16968855

申请日：2018-09-13

申请人： SHIMADZU CORPORATION

发明人： Michiaki OWA

IPC分类号： G01N30/54 ,  B01D11/02

摘要： A supercritical fluid separation apparatus performs feedback control of output of a heater so that a separation part temperature becomes a set temperature, based on both output of a first temperature sensor that measures a heating block temperature and output of a second temperature sensor that measures the separation part temperature. When a difference between the separation part temperature and the set temperature is large (equal to or more than a predetermined value), output of the heater is adjusted based on the heating block temperature. When a difference between the separation part temperature and the set temperature becomes small (less than a predetermined value), the output of the heater is adjusted based on the difference.

公开(公告)号：US20200041466A1

公开(公告)日：2020-02-06

申请号：US16441603

申请日：2017-12-13

申请人： LECO Corporation

发明人： Mark Firmer Merrick

IPC分类号： G01N30/30 ,  G01N30/46 ,  G01N30/54 ,  G01N30/12

摘要： A chromatography system includes a modulator, a chromatograph, a cooler, and a detector. The chromatograph is connected to the modulator by a first heated transfer line. The detector is connected to the modulator by a second heated transfer line. The cooler is connected to the modulator. The modulator is arranged outside of the chromatograph.