专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明申请

US20210199628A1 LIQUID CHROMATOGRAPHY SYSTEM, METHOD AND USE 有权
公开(公告)号：US20210199628A1
公开(公告)日：2021-07-01
申请号：US17199812
申请日：2021-03-12
申请人： DIONEX SOFTRON GMBH
发明人： Christoph HOLLNAGEL , Remco SWART , Hermann HOCHGRAEBER
IPC分类号： G01N30/32 , G01N30/20 , G01N30/24 , G01N30/22
摘要： A method performed in a liquid chromatography system includes a metering device pushing a sample into a trap column. The metering device sucks in the sample from a sample reservoir, wherein the sucking in the sample from a sample reservoir precedes the step of pushing the sample into the trap column. The liquid chromatography system also includes a trap column and a metering device, wherein the system is adapted to assume a configuration allowing the metering device to push a sample into the trap column and wherein the metering device is adapted to push the sample into the trap column in this configuration, wherein the system is adapted to assume a configuration allowing the sample to be sucked into the system by means of the metering device. Furthermore, the invention relates to a use of the liquid chromatography system for liquid chromatography, in particular of high-pressure liquid chromatography.

12. 发明授权

US10900983B2 Method for operating a dosing device 有权
公开(公告)号：US10900983B2
公开(公告)日：2021-01-26
申请号：US15472777
申请日：2017-03-29
申请人： CTC Analytics AG
发明人： Lucas Luethy , Beat Luethy
IPC分类号： G01N1/12 , G01N35/10 , G01F23/292 , G01N30/24 , B01L3/00
摘要： A method for operating a dosing device comprising a control unit, a dosing unit with a cannula of a first volume, and a sampling container connected to the cannula. The method comprises moving the dosing unit in a first direction along an axis to move the cannula into a vessel containing a liquid; constantly aspirating fluid through the cannula with a predetermined volumetric flow; measuring at least one optical parameter of the aspirated fluid; when a change of the optical parameter is detected, storing a first position of the dosing unit on the axis and interrupting the movement of the dosing unit; and calculating a second position of the dosing unit on the axis at which the tip of the cannula has penetrated a first phase boundary upon immersion into the liquid. The calculation is performed on the basis of the first position, the predetermined speed, the first volume and the predetermined volumetric flow.

13. 发明授权

US10859541B2 Textured needle for improved piercing performance in liquid chromatography applications 有权
公开(公告)号：US10859541B2
公开(公告)日：2020-12-08
申请号：US16292857
申请日：2019-03-05
申请人： Waters Technologies Corporation
发明人： Scott Kelley , Peter Osswald , Rose Solow , John M. Auclair
IPC分类号： G01N30/18 , G01N30/20 , B01D15/14 , B29C65/00 , B23K26/282 , B23K26/00 , B23K26/352 , G01N30/24 , B23K101/20 , B23K101/06
摘要： A needle for aspirating a sample from a sample source and injecting the sample into a liquid chromatography system, the needle including a needle body having a rough textured surface finish for at least a portion of the needle body, wherein the rough textured surface finish reduces a coefficient of friction of the needle body, is provided. Furthermore, an associated method is also provided.

14. 发明申请

US20200371072A1 ANALYSIS APPARATUS PROVIDED WITH A PLURALITY OF CHROMATOGRAPHS 审中-公开
公开(公告)号：US20200371072A1
公开(公告)日：2020-11-26
申请号：US16961344
申请日：2018-11-30
申请人： HITACHI HIGH-TECH CORPORATION
发明人： Daisuke AKIEDA , Takayuki SUGIME , Izumi OGATA , Makoto NOGAMI
IPC分类号： G01N30/60 , G01N30/24 , G01N30/34 , G01N30/72
摘要： The analysis apparatus includes a standby section which is provided between a dispensing operation of an analysis item B′ prior to an analysis item C and the sample analysis channel introduction. The sample analysis channel introduction is arranged prior to a data collection section of an analysis item A. The operation is started earlier but after a sample dispensing operation section of the analysis item A. A sample dispensing operation section of the analysis item C can be started earlier and the analysis time of the analysis item C can be moved to immediately after a sample analysis operation section of the analysis item B′. The analysis item A in a second cycle can be started earlier by the early start time of the analysis item C in a first cycle. A total processing time Tc can be shorter than a total processing time Tb.

15. 发明授权

US10739199B1 Chromatographic offline sample preparation and storage for sample analysis 有权
公开(公告)号：US10739199B1
公开(公告)日：2020-08-11
申请号：US15956482
申请日：2018-04-18
申请人： Elemental Scientific, Inc.
发明人： Daniel R. Wiederin , Michael Paul Field
IPC分类号： G01J3/443 , G01N30/24 , G01J3/28 , G01N30/04
摘要： A system includes a sample selector device, a chromatographic column selectively connectable to the sample selector device, and a spectrometry analysis device selectively connectable to the sample selector device. The sample selector device is configured to supply multiple individual samples to the chromatographic column to separate components of the individual samples. The sample selector device is also configured to store the separated components of the individual samples. The sample selector device is further configured to supply the separated components of the individual samples to the spectrometry analysis device. In embodiments of the disclosure, the components of the individual samples can be chromatographically separated while the spectrometry analysis device is offline.

16. 发明申请

US20200240960A1 METHODS FOR LIQUID CHROMATOGRAPHY FLUIDIC MONITORING 审中-公开
公开(公告)号：US20200240960A1
公开(公告)日：2020-07-30
申请号：US16851013
申请日：2020-04-16
申请人： Thermo Finnigan LLC
发明人： Tao SONG , John E. BRANN , Joseph John TAKAREWSKI, JR. , Eric A. FRANCE
IPC分类号： G01N30/32 , B01D15/16 , G01N30/24 , G01N30/20 , G01M3/28 , G01M3/32 , B01D15/14 , B01D15/42 , B01D35/143 , G01N30/88
摘要： A liquid chromatography monitoring system comprises a computer or electronic controller comprising computer-readable instructions operable to: (a) draw a fluid into a syringe pump; (b) configure a valve so as to fluidically couple the pump to either a fluidic pathway through a fluidic system or to a plug that prevents fluid flow; (c) cause the syringe pump to progressively compress the fluid therein or expel the fluid to the fluidic pathway, while measuring a pressure of the fluid; (d) determine a profile of the variation of the measured pressure; (e) compare the determined profile to an expected profile that depends upon the fluid; and (f) provide a notification of a sub-optimal operating condition or malfunction if the determined profile varies from the expected profile by greater than a predetermined tolerance.

17. 发明申请

US20200096486A1 PREPROCESSING DEVICE AND ANALYSIS SYSTEM PROVIDED WITH SAME 审中-公开
公开(公告)号：US20200096486A1
公开(公告)日：2020-03-26
申请号：US16691927
申请日：2019-11-22
申请人： SHIMADZU CORPORATION
发明人： Nobuhiro HANAFUSA , Kazuhiro SUZUKI
IPC分类号： G01N30/24 , G01N35/02 , G01N30/88 , G01N35/00 , G01N1/10 , G01N35/04 , G01N27/62 , G01N30/36
摘要： The present invention provides a processing device with a high degree of flexibility in setting of preprocessing and which is capable of increasing the preprocessing efficiency, and an analysis system provided with the same. Setting receiving means (84d) receives, for each sample, setting of a plurality of types of preprocessing and a parameter for each preprocessing. A preprocessing execution section (84e) controls a plurality of preprocessing sections and a transport arm (24) so that a plurality of types of preprocessing set for each of different samples is performed simultaneously in parallel. The preprocessing execution section (84e) performs control in such a way that preprocessing is not to be performed on different samples at the same preprocessing section at the same.

18. 发明授权

US10551400B2 Device for solid-phase microextraction 有权
公开(公告)号：US10551400B2
公开(公告)日：2020-02-04
申请号：US15832964
申请日：2017-12-06
申请人： GERSTEL Systemtechnik GmbH & Co. KG
发明人： Ralf Bremer , Bernhard Rose
IPC分类号： G01N35/10 , G01N30/06 , G01N30/24 , B01D53/02 , G01N1/40 , G01N30/00 , G01N35/00 , B01L3/00 , B01L9/06
摘要： Device for solid-phase microextraction and analysis of substances to be analyzed, in particular in a gas chromatograph, with at least one collector, which is made of sorbent and/or adsorbent material and is placed on a rod-like support, and with at least one sample container, which is sealed with a pierceable partition wall and into which the collector is introduced piercing the partition wall for a sampling time, wherein the sealing of the sample container is assembled from the pierceable partition wall and a clamping ring, which can be mounted on the sample container and presses the partition wall together with a sealing element onto an upper rim of the sample container, and which comprises a socket in which a fitting of a transport adapter which is attached to a handling end of the rod-like support can be anchored detachably and with sealing surface pressure after the collector is inserted into the sample container following piercing the partition wall.

19. 发明授权

US10359405B2 Analyzing-device controller 有权
公开(公告)号：US10359405B2
公开(公告)日：2019-07-23
申请号：US15317542
申请日：2014-06-12
申请人： SHIMADZU CORPORATION
发明人： Kiriko Matsuo
IPC分类号： G01N30/88 , G01N30/24 , G01N30/86 , G01N35/00 , G01N30/72
摘要： A specimen information storage section (361) holds specimen information showing the relationship between a number of specimens to be analyzed and compounds whose quantities need to be determined. An analysis method storage section (362) holds the files of analysis methods created by an administrator. When an operator selects and indicates analysis methods to be used in an analysis, a method information creation processor (32) extracts compound information from the selected analysis methods and creates method information showing the correspondence between the analysis methods and the compounds to be analyzed. When the operator registers the specimen numbers of the analysis targets, a used-method automatic determiner (34) refers to the specimen information and method information to identify a suitable analysis method for each compound in the registered specimens. An analysis schedule creator (35) creates a schedule table in which the specimens and analysis methods are described in order of the analysis. This schedule includes no useless analysis performed using an analysis method which is unsuitable for the analysis concerned. Consequently, the efficiency of the analysis is improved.

20. 发明申请

US20190145943A1 Chromatographic Data System Processing Apparatus 审中-公开
公开(公告)号：US20190145943A1
公开(公告)日：2019-05-16
申请号：US16191962
申请日：2018-11-15
申请人： Hitachi High-Tech Science Corporation
发明人： Masahito Ito , Katsutoshi Shimizu
IPC分类号： G01N30/86 , G01N30/74 , G01N30/24
摘要： A chromatographic data system processing apparatus includes a liquid feeder, a sample injector, a column that separates samples, a detector, a controller that processes a detected result of the detector, and a data processor that examines and sets operations of the liquid feeder, the column and the detector, and a measurement condition. The data processor generates a three-dimensional graph having three axes related to a pressure, a time, and a number of theoretical plates based on data or variables indicating a relationship between the number of theoretical plates and a flow rate, and data or variables indicating a relationship between the pressure and the flow rate. The chromatographic data system processing apparatus can easily obtain a separation condition for obtaining performance from a three-dimensional graph including a pressure drop, a hold-up time and a number of theoretical plates.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式