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公开(公告)号：US10948462B1
公开(公告)日：2021-03-16
申请号：US16391993
申请日：2019-04-23
摘要： The present disclosure is directed to systems and methods for automated column sparging of preconcentration columns for analytic testing. A system embodiment includes, but is not limited to, a selection valve fluidically coupled with a gas source and with an eluent source, the selection valve including a mixing portion to mix gas from the gas source and eluent from the eluent source to provide a bubbled eluent stream; and a preconcentration column in fluid communication with the selection valve, the preconcentration column configured to receive the bubbled eluent stream from the selection valve and direct the bubbled eluent stream into an interior of the preconcentration column.
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公开(公告)号：US10379132B1
公开(公告)日：2019-08-13
申请号：US15664390
申请日：2017-07-31
摘要： The present disclosure is directed to an auto-sampling system with syringe, valve configurations, and control logic that allow automatic, inline preparation of concentrated sulfuric acid and concentrated phosphoric acid for analytic analyzes. In implementations, the auto-sampling system includes independent syringe pumps connected to a valve system to dynamically introduce carrier, diluent, buffer, and eluent flows according to one or more modes of operation.
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公开(公告)号：US09934953B1
公开(公告)日：2018-04-03
申请号：US15194917
申请日：2016-06-28
CPC分类号： H01J49/105 , B05B14/45 , H01J49/0031 , H01J49/0077 , H01J49/045 , H01J49/145
摘要： A system for determining an analyte by inductively coupled plasma mass spectrometry (ICPMS) includes a sample introduction device having a heated cyclonic spray chamber. The system is configured to introduce sample that includes a metal and/or a metalloid having an organic interferent. The system also includes an inductively coupled plasma mass spectrometry device with a collision/reaction cell configured to receive a mixture of gases including both ammonia and hydrogen. A method includes introducing a sample to plasma to produce a characteristic spectrum associated with an elemental composition of the sample. The method also includes introducing both ammonia and hydrogen to a collision/reaction cell to remove carbon-based interferences to detection of the sample prior to determining the elemental composition of the sample.
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公开(公告)号：US11067182B1
公开(公告)日：2021-07-20
申请号：US16532403
申请日：2019-08-05
IPC分类号： F16K11/074 , G01N35/10 , H01J49/04 , G01N30/20 , G01N30/00
摘要： Valve assemblies are described that provide segmented shuttle of liquid into sample vessels and automatic mixing via bubbles in the segmented liquid. A valve assembly includes a first valve member having ports configured to receive a pressurized gas, a first fluid, and a second fluid. The valve assembly also includes a second valve member coupled adjacent to the first valve member. The second valve member comprises a plurality of channels configured to interface with the first valve member. In a first configuration, the first fluid is loaded into an external loop. In the second configuration, the second fluid is eluted from the column into a vial in a segmented stream via bubbles of pressurized gas. Bubbles of gas automatically mix the eluted sample fluid.
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公开(公告)号：US10060541B1
公开(公告)日：2018-08-28
申请号：US15400654
申请日：2017-01-06
IPC分类号： F16K11/085 , F16K11/10 , G01N30/20 , F16K11/074
CPC分类号： F16K11/0743 , F16K11/0853 , F16K11/10 , G01N30/20 , G01N2030/202
摘要： A rotor, a valve assembly, and a method for using the rotor and valve assembly are described that provide a reversed flow path. In an implementation, a rotor that employs example techniques in accordance with the present disclosure includes a plurality of channels formed in a surface of the rotor, the surface configured to be adjacent to and interface with a stator having a plurality of ports, where at least one channel fluidically connects at least three of the plurality of ports.
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公开(公告)号：US11204306B2
公开(公告)日：2021-12-21
申请号：US16536893
申请日：2019-08-09
发明人： Nathan Saetveit
摘要： Systems and methods for automatic preconcentration of fluid samples using alternating dual holding loops are described. A system embodiment includes, but is not limited to, a first sample loop and a second sample loop alternately fluidically coupled with a sample source; a first valve to alternately introduce fluid from the sample source to the first sample loop and the second sample loop; a second valve to alternately receive fluid from the first sample loop and the second sample loop and to alternately provide access to the preconcentration column to fluid received from the first sample loop and the second sample loop; and a pump system configured to alternately introduce sample held in the first sample loop and sample held in the second sample loop to the preconcentration column via the first valve and the second valve.
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公开(公告)号：US11156629B1
公开(公告)日：2021-10-26
申请号：US16539438
申请日：2019-08-13
摘要： The present disclosure is directed to an auto-sampling system with syringe, valve configurations, and control logic that allow automatic, inline preparation of concentrated sulfuric acid and concentrated phosphoric acid for analytic analyses. In implementations, the auto-sampling system includes independent syringe pumps connected to a valve system to dynamically introduce carrier, diluent, buffer, and eluent flows according to one or more modes of operation.
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公开(公告)号：US10371273B1
公开(公告)日：2019-08-06
申请号：US15665813
申请日：2017-08-01
IPC分类号： F16K11/074 , H01J49/04 , G01N35/10
摘要： Valve assemblies are described that provide segmented shuttle of liquid into sample vessels and automatic mixing via bubbles in the segmented liquid. A valve assembly includes a first valve member having ports configured to receive a pressurized gas, a first fluid, and a second fluid. The valve assembly also includes a second valve member coupled adjacent to the first valve member. The second valve member comprises a plurality of channels configured to interface with the first valve member. In a first configuration, the first fluid is loaded into an external loop. In the second configuration, the second fluid is eluted from the column into a vial in a segmented stream via bubbles of pressurized gas. Bubbles of gas automatically mix the eluted sample fluid.
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公开(公告)号：US09752691B1
公开(公告)日：2017-09-05
申请号：US14791336
申请日：2015-07-03
IPC分类号： F16K11/074 , H01J49/04 , G01N35/10
CPC分类号： F16K11/0743 , G01N30/00 , G01N30/20 , G01N35/1097
摘要： Valve assemblies are described that provide segmented shuttle of liquid into sample vessels and automatic mixing via bubbles in the segmented liquid. A valve assembly includes a first valve member having ports configured to receive a pressurized gas, a first fluid, and a second fluid. The valve assembly also includes a second valve member coupled adjacent to the first valve member. The second valve member comprises a plurality of channels configured to interface with the first valve member. In a first configuration, the first fluid is loaded into an external loop. In the second configuration, the second fluid is eluted from the column into a vial in a segmented stream via bubbles of pressurized gas. Bubbles of gas automatically mix the eluted sample fluid.
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公开(公告)号：US09541207B1
公开(公告)日：2017-01-10
申请号：US14612494
申请日：2015-02-03
IPC分类号： F16K11/085 , F16K11/10 , G01N30/20 , F16K11/074
CPC分类号： F16K11/0743 , F16K11/0853 , F16K11/10 , G01N30/20 , G01N2030/202
摘要： A rotor, a valve assembly, and a method for using the rotor and valve assembly are described that provide a reversed flow path. In an implementation, a rotor that employs example techniques in accordance with the present disclosure includes a plurality of channels formed in a surface of the rotor, the surface configured to be adjacent to and interface with a stator having a plurality of ports, where at least one channel fluidically connects at least three of the plurality of ports.
摘要翻译： 描述了转子，阀组件和用于使用转子和阀组件的方法，其提供反向流动路径。 在一个实施方案中，采用根据本公开的示例技术的转子包括形成在转子的表面中的多个通道，所述多个通道被配置为与具有多个端口的定子相邻并与其相接触，其中至少 一个通道流体地连接多个端口中的至少三个端口。
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