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1. 发明授权

US11913917B2 Chromatograph and sample injection apparatus 有权
公开(公告)号：US11913917B2
公开(公告)日：2024-02-27
申请号：US17125050
申请日：2020-12-17
申请人： SHIMADZU CORPORATION
发明人： Satoru Watanabe , Takashi Inoue
IPC分类号： G01N30/24 , G01N30/36 , G01N30/02 , G01N30/38
CPC分类号： G01N30/24 , G01N30/36 , G01N2030/027 , G01N2030/385
摘要： An autosampler includes a retention path for injecting a sample into a mobile phase that flows through an analysis path to a column, the retention path including a needle at a downstream end and holding the sample, an injection path including a port at an upstream end for injecting into the analysis path, the sample injected from the needle into the port, a low-pressure path having an upstream end connected to a pump, and a valve that can switch between a first state in which an upstream analysis path and a downstream analysis path are connected and a downstream end of the low-pressure path and an upstream end of the retention path are connected and a second state in which the upstream analysis path and the upstream end of the retention path are connected and the downstream end of the injection path and the downstream analysis path are connected.

2. 发明申请

US20180238841A1 PREPARATIVE SEPARATION AND PURIFICATION DEVICE AND PREPARATIVE SEPARATION AND PURIFICATION METHOD 审中-公开
公开(公告)号：US20180238841A1
公开(公告)日：2018-08-23
申请号：US15750856
申请日：2016-05-23
申请人： Shimadzu Corporation
发明人： Tomoyuki YAMAZAKI
IPC分类号： G01N30/38 , G01N30/80 , G01N30/32 , B01D15/24 , B01D15/14 , B01D15/16
CPC分类号： G01N30/38 , B01D15/14 , B01D15/161 , B01D15/163 , B01D15/247 , G01N30/32 , G01N30/80 , G01N30/84 , G01N2030/085 , G01N2030/328 , G01N2030/385
摘要： A target component is collected using a preparative separation and purification device having a holder for holding a trap column in which the target component has been captured, a liquid feeder for feeding a first solvent having compatibility with the water remaining in the trap column and a second solvent having low compatibility with water and high compatibility with the first solvent into the trap column, a flow-path switch for connecting the exit end of the trap column to a waste liquid flow path and a collection flow path, and a control unit for controlling the flow-path switch so that solution including water flows into the waste liquid flow path.

3. 发明申请

US20180128792A1 Method and device for sample loading 审中-公开
公开(公告)号：US20180128792A1
公开(公告)日：2018-05-10
申请号：US15809239
申请日：2017-11-10
申请人： DIONEX SOFTRON GMBH
发明人： Thomas WACHINGER , Christoph HOLLNAGEL
IPC分类号： G01N30/60 , G01N30/14
CPC分类号： G01N30/6034 , G01N30/14 , G01N30/20 , G01N30/24 , G01N2030/027 , G01N2030/201 , G01N2030/202 , G01N2030/385
摘要： A liquid chromatography system includes a separation column, a trap column, and a first switching valve. The first switching valve is adapted to assume a first switching position for bringing a sample into the trap column in a first flow direction. The switching valve is also adapted to assume a second switching position for fluidly connecting the trap column with the separation column and providing a flow from the trap column to the separation column in a second flow direction. The second flow direction is opposite to the first flow direction. The first switching valve is adapted to assume a third switching position for fluidly connecting the trap column, with the separation column and providing a flow from the trap column to the separation column in the first flow direction.

4. 发明授权

US09933398B2 Device and method for extracting compounds contained in a liquid sample with a view to analysing them 有权
公开(公告)号：US09933398B2
公开(公告)日：2018-04-03
申请号：US14389051
申请日：2013-03-28
申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALT
发明人： Florence Ricoul
IPC分类号： G01N30/14 , G01N1/40 , G01N30/08 , G01N30/12 , G01N30/38 , G01N30/60 , B01D15/08 , G01N30/00 , G01N30/02
CPC分类号： G01N30/14 , B01D15/08 , G01N1/405 , G01N30/08 , G01N30/12 , G01N30/38 , G01N30/6095 , G01N2030/009 , G01N2030/025 , G01N2030/085 , G01N2030/385
摘要： A device for extraction of at least one analyte contained in a liquid sample, including an extraction and desorption zone of the analyte with a stationary phase as the extraction zone, a liquid supply inlet to the extraction zone, a gas supply inlet to the extraction zone, an evacuation outlet from the extraction zone that will be connected to either a collection tank, or a device for analysis of the analytes, a valve configured to connect the extraction zone to one of the supply inlets, a valve configured to connect the extraction zone to one of the evacuation outlets, a mechanism heating the valve zone such that when the extraction zone is supplied with liquid, evacuation from the extraction zone takes place to the collection tank.

5. 发明授权

US09435774B2 Gas chromatograph apparatus 有权
标题翻译：气相色谱仪
公开(公告)号：US09435774B2
公开(公告)日：2016-09-06
申请号：US13905652
申请日：2013-05-30
申请人： SHIMADZU CORPORATION
发明人： Shuichi Kawana
IPC分类号： G01N30/02 , G01N30/16 , G01N30/38 , G01N30/32
CPC分类号： G01N30/38 , G01N2030/324 , G01N2030/385
摘要： A gas chromatograph having a column which separates respective components contained in a gas sample introduced via a carrier gas over time, wherein an analysis mode and a standby mode can be switched and executed. The gas chromatograph apparatus comprises: a carrier gas flow path, a column protection gas flow path, a flow path switching part provided between the carrier gas flow path and the column protection gas flow path and a column so that only one of the carrier gas or a column protection gas is introduced into the column, and a flow path control part for controlling the flow switching part so as to introduce the carrier gas into the column at the time of the analysis mode and introduce the column protection gas into the column at the time of the standby mode.
摘要翻译：一种气相色谱仪，其具有分离随着时间经由载气引入的气体样品中所含的各成分的柱，其中可以切换并执行分析模式和待机模式。气相色谱装置包括：载气流路，柱保护气流路径，设置在载气流路和柱保护气流路之间的流路切换部，以及列，仅使一个载气或柱保护气体被引入塔中，流路控制部分用于控制流动切换部分，以便在分析模式时将载气引入塔中，并将柱保护气体引入塔中待机模式的时间。

6. 发明申请

US20130000485A1 Flow Control System, Device and Method for Thermal Desorption 审中-公开
标题翻译：流量控制系统，热解析装置和方法
公开(公告)号：US20130000485A1
公开(公告)日：2013-01-03
申请号：US13172263
申请日：2011-06-29
申请人： Andrew Tipler , Greg Johnson , David J. Scott
发明人： Andrew Tipler , Greg Johnson , David J. Scott
IPC分类号： B01D53/04
CPC分类号： G01N30/08 , G01N30/12 , G01N30/38 , G01N2030/085 , G01N2030/128 , G01N2030/385
摘要： A flow control system, method and device for performing thermal desorption is provided. In one embodiment, the system includes a first flow path in which gas flows from a first carrier gas inlet, through a first vessel in a first direction at a first flow rate to adsorb analytes on an adsorbent of said first vessel; a second flow path in which gas flows from a second carrier gas inlet, through said first vessel in the first direction at a second flow rate to further adsorb the analytes on the adsorbent of said first vessel; a third flow path in which a carrier gas flows through said first vessel in a second direction to carry desorbed analytes out of said first vessel; and wherein the second flow rate of carrier gas through said first vessel is greater than the first flow rate of carrier gas through said first vessel.
摘要翻译：提供了一种用于进行热解吸的流量控制系统，方法和装置。在一个实施例中，系统包括第一流动路径，气体从第一载气入口以第一流量沿第一方向流过第一容器，以将分析物吸附在所述第一容器的吸附剂上; 第二流路，其中气体从第二载气入口流过所述第一容器，以第二流量在第一方向上，以进一步将分析物吸附在所述第一容器的吸附剂上; 第三流动路径，其中载气在第二方向上流过所述第一容器，以将解吸附的分析物运送出所述第一容器; 并且其中通过所述第一容器的载气的第二流量大于通过所述第一容器的载气的第一流量。

7. 发明授权

US5652398A Fixed-volume injector with backflush capability 失效
标题翻译：具有反吹能力的固定量注射器
公开(公告)号：US5652398A
公开(公告)日：1997-07-29
申请号：US609223
申请日：1996-03-01
申请人： Paul H. Johnson
发明人： Paul H. Johnson
IPC分类号： G01N30/02 , G01N30/08 , G01N30/16 , G01N30/20 , G01N30/38 , G01N30/40 , G01N30/60 , G01N30/00
CPC分类号： G01N30/60 , G01N30/16 , G01N30/20 , G01N30/40 , G01N2030/025 , G01N2030/085 , G01N2030/205 , G01N2030/385 , G01N2030/402 , G01N30/6095
摘要： A fixed-volume injector assembly having backflush capability is useful for injecting a sample into a gas chromatograph. The injector assembly has a sampling mode of operation, an injection mode of operation and a backflush mode of operation. In the sampling mode, sample is drawn into sampling chamber (11). In the injection mode, sample is injected into an injection channel which conducts the sample to a destination stream. In the backflush mode, carrier fluid flows through the injector assembly in the opposite direction. The injector assembly is designed to connect to precolumn (28) and analytical column (20) so that, in the backflush mode, precolumn (28) is backflushed. Advantages of the injector assembly include the ability to pressurize the sample before injection and to use a single carrier fluid source. In addition, the flow channels of the injector assembly are readily miniaturized.
摘要翻译：具有反吹能力的固定量的注射器组件可用于将样品注入气相色谱仪中。喷射器组件具有采样操作模式，喷射操作模式和反吹操作模式。在取样模式下，将样品吸入取样室（11）。在注射模式中，将样品注入到将样品传导到目标流的注入通道中。在反吹模式下，载体流体沿相反方向流过喷射器组件。喷射器组件被设计成连接到预柱（28）和分析柱（20），使得在反冲模式中，预柱（28）被反冲洗。注射器组件的优点包括在注射之前对样品加压并使用单载体流体源的能力。此外，喷射器组件的流动通道容易地小型化。

8. 发明授权

US5281256A Gas chromatography system with column bifurcation and tunable selectivity 失效
标题翻译：具有柱分叉和可调选择性的气相色谱系统
公开(公告)号：US5281256A
公开(公告)日：1994-01-25
申请号：US975289
申请日：1992-11-12
申请人： Richard D. Sacks , Michael L. Akard
发明人： Richard D. Sacks , Michael L. Akard
IPC分类号： G01N30/26 , G01N1/00 , G01N1/22 , G01N1/26 , G01N30/02 , G01N30/12 , G01N30/20 , G01N30/24 , G01N30/30 , G01N30/32 , G01N30/38 , G01N30/40 , G01N30/46 , G01N30/62 , G01N30/68 , G01N30/78 , G01N30/86 , B01D15/08
CPC分类号： G01N30/468 , G01N1/26 , G01N30/12 , G01N30/20 , G01N30/38 , G01N30/40 , G01N1/2214 , G01N2030/025 , G01N2030/121 , G01N2030/122 , G01N2030/201 , G01N2030/202 , G01N2030/204 , G01N2030/3046 , G01N2030/383 , G01N2030/385 , G01N2030/402 , G01N2030/405 , G01N2030/407 , G01N2030/623 , G01N2030/628 , G01N30/24 , G01N30/32 , G01N30/461 , G01N30/466 , G01N30/68 , G01N30/78 , G01N30/8651 , G01N35/1097
摘要： A gas chromatography system featuring column bifurcation and pressure tuning. The system of this invention incorporates a bifurcated system in which samples eluting from a first separation column are directed selectively through one of two or more additional separation columns. Flow directing is achieved through the use of valves which switch carrier gas which are outside of the path of the analyte mixture. Effective tuning of the system is provided by adjusting the intermediate pressure which controls the effective lengths of the initial separation column and the additional final separation columns.
摘要翻译：具有柱分岔和压力调节的气相色谱系统。本发明的系统包含分叉系统，其中从第一分离柱洗脱的样品选择性地通过两个或更多个附加分离柱之一。通过使用在分析物混合物的路径之外切换载气的阀来实现流动引导。通过调节控制初始分离柱和附加最终分离柱的有效长度的中间压力来提供系统的有效调节。

9. 发明授权

US4872334A Variable flow capillary gas chromatography method 失效
标题翻译：可变流量毛细管气相色谱法
公开(公告)号：US4872334A
公开(公告)日：1989-10-10
申请号：US287692
申请日：1988-12-20
申请人： Chuichi Watanabe
发明人： Chuichi Watanabe
IPC分类号： B01D15/08 , G01N30/02 , G01N30/16 , G01N30/32 , G01N30/38 , G01N30/54
CPC分类号： G01N30/32 , G01N2030/385 , G01N30/16
摘要： A method for temperature programmed capillary column gas chromatography characterized in that carrier gas is flowed in an amount greater than that under normal separation conditions for a term starting from before injection of a sample or immediately after the injection and ending at any time point from immediately after a solvent in the sample commences to enter into a column to the solvent finishing passing through the column. The invention is also apparatus for the above method characterized in that the apparatus has two flow paths for carrier gas which, for example, join to one flow path before a sample injection device, and one of the flow paths has a valve which can rapidly stop or decrease the flow of the carrier gas in that flow path.
摘要翻译：一种用于温度程序化毛细管柱气相色谱法的方法，其特征在于，载体气体的流量大于在正常分离条件下的量，用于从注射样品之前或在注射后立即开始并在从紧随其后的任何时间点结束样品中的溶剂开始进入通过柱的溶剂整理剂的塔中。本发明也是上述方法的装置，其特征在于，该装置具有用于载气的两个流路，例如在样品注入装置之前连接到一个流路，并且其中一个流路具有可快速停止的阀或减少该流路中的载气的流动。

10. 发明公开

US20240192180A1 AUTOMATIC ANALYZER INCLUDING HPLC AND CONTROL METHOD FOR THE SAME 审中-公开
公开(公告)号：US20240192180A1
公开(公告)日：2024-06-13
申请号：US18554237
申请日：2022-02-04
申请人： HITACHI HIGH-TECH CORPORATION
发明人： Midori Tobita , Daisuke Akieda , Makoto Nogami , Yuichiro Hashimoto
IPC分类号： G01N30/32 , G01N30/02 , G01N30/38 , G01N30/46 , G01N30/88
CPC分类号： G01N30/32 , G01N30/468 , G01N2030/027 , G01N2030/324 , G01N2030/328 , G01N2030/385 , G01N2030/8804
摘要： An automatic analyzer includes a liquid feed unit including a liquid feed unit and a liquid feed flow passage and feeding a mobile phase, a sample introduction unit introducing a sample to the mobile phase, a separation column separating the sample into plural components, a detector detecting the component, and a control unit. A pressure sensor detecting pressure of the liquid feed flow passage is provided, and the control unit calculates a pressure rise rate of the time immediately after starting liquid feeding of the mobile phase based on the pressure detected by the pressure sensor and a compression pressure variation amount and a pressure average after continuing liquid feeding of the mobile phase for a certain time, and determines completion of equilibration of the separation column.

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