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公开(公告)号：US06634244B2
公开(公告)日：2003-10-21
申请号：US10012874
申请日：2001-11-12
IPC分类号： G01N140
CPC分类号： G01N15/0618 , G01N1/2813 , G01N1/40 , G01N1/4077 , Y10T436/107497 , Y10T436/25375
摘要： Instruments and processes according to the invention provide for the preparation of a fluid sample that has a substantially known concentration of a select particulate matter. In one aspect, the invention is understood as laboratory instruments for sample preparation. These instruments can include a filter that is submersible within a fluid suspension of particulate matter. To collect particulate matter from the fluid suspension, the instruments can cause a fluid flow that pulls fluid across the filter to trap particulate matter against one surface of the filter. The instruments can then remove the filter from the fluid suspension and dispose the filter above a collection vessel such that the side of the filter that is carrying particulate matter is positioned above the opening of the collection vessel. The laboratory instruments can then send a collection fluid through the filter in a direction opposite to the original fluid flow, thereby washing the particulate matter off the filter and into the collection vessel. The laboratory instruments according to the invention can provide samples having a known concentration by passing a known volume of collection fluid through the filter, thereby trapping the collected particulate matter within a known volume of collection fluid.
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2.发明授权Systems for collecting fluid samples having select concentrations of particles 有权用于收集具有选择浓度的颗粒的流体样品的系统公开(公告)号：US06318190B1
公开(公告)日：2001-11-20
申请号：US09372146
申请日：1999-08-20
IPC分类号： G01N114
CPC分类号： G01N15/0618 , G01N1/2813 , G01N1/40 , G01N1/4077 , Y10T436/107497 , Y10T436/25375
摘要： Instruments and processes according to the invention provide for the preparation of a fluid sample that has a substantially known concentration of a select particulate matter. In one aspect, the invention is understood as laboratory instruments for sample preparation. These instruments can include a filter that is submersible within a fluid suspension of particulate matter. To collect particulate matter from the fluid suspension, the instruments can cause a fluid flow that pulls fluid across the filter to trap particulate matter against one surface of the filter. The instruments can then remove the filter from the fluid suspension and dispose the filter above a collection vessel such that the side of the filter that is carrying particulate matter is positioned above the opening of the collection vessel. The laboratory instruments can then send a collection fluid through the filter in a direction opposite to the original fluid flow, thereby washing the particulate matter off the filter and into the collection vessel. The laboratory instruments according to the invention can provide samples having a known concentration by passing a known volume of collection fluid through the filter, thereby trapping the collected particulate matter within a known volume of collection fluid.
摘要翻译： 根据本发明的仪器和方法提供了具有基本已知浓度的选择颗粒物质的流体样品的制备。 一方面，本发明被理解为用于样品制备的实验室仪器。 这些仪器可以包括可以在颗粒物质的流体悬浮液中潜水的过滤器。 为了从流体悬浮液收集颗粒物质，仪器可引起流体流过过滤器以将颗粒物质吸收到过滤器的一个表面上。 然后，仪器可以从流体悬浮液中除去过滤器，并将过滤器置于收集容器上方，使得携带颗粒物质的过滤器的侧面位于收集容器开口的上方。 然后，实验室仪器可以以与原始流体流相反的方向将收集流体通过过滤器，从而将颗粒物质从过滤器上洗涤并进入收集容器。 根据本发明的实验室仪器可以通过使已知体积的收集流体通过过滤器来提供具有已知浓度的样品，从而将收集的颗粒物质捕集在已知体积的收集流体中。
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3.发明授权Systems and methods for collecting fluid samples having select concentrations of particles 失效用于收集具有选择浓度的颗粒的流体样品的系统和方法
公开(公告)号：US5942700A
公开(公告)日：1999-08-24
申请号：US742647
申请日：1996-11-01
CPC分类号： G01N15/0618 , G01N1/40 , G01N1/2813 , G01N1/4077 , Y10T436/107497 , Y10T436/25375
摘要： Instruments and processes according to the invention provide for the preparation of a fluid sample that has a substantially known concentration of a select particulate matter. In one aspect, the invention is understood as laboratory instruments for sample preparation. These instruments can include a filter that is submersible within a fluid suspension of particulate matter. To collect particulate matter from the fluid suspension, the instruments can cause a fluid flow that pulls fluid across the filter to trap particulate matter against one surface of the filter. The instruments can then remove the filter from the fluid suspension and dispose the filter above a collection vessel such that the side of the filter that is carrying particulate matter is positioned above the opening of the collection vessel. The laboratory instruments can then send a collection fluid through the filter in a direction opposite to the original fluid flow, thereby washing the particulate matter off the filter and into the collection vessel. The laboratory instruments according to the invention can provide samples having a known concentration by passing a known volume of collection fluid through the filter, thereby trapping the collected particulate matter within a known volume of collection fluid.
摘要翻译： 根据本发明的仪器和方法提供了具有基本已知浓度的选择颗粒物质的流体样品的制备。 一方面，本发明被理解为用于样品制备的实验室仪器。 这些仪器可以包括可以在颗粒物质的流体悬浮液中潜水的过滤器。 为了从流体悬浮液中收集颗粒物质，仪器可能导致流体流过过滤器，以将颗粒物质捕获到过滤器的一个表面上。 然后，仪器可以从流体悬浮液中除去过滤器，并将过滤器置于收集容器上方，使得携带颗粒物质的过滤器的侧面位于收集容器的开口的上方。 然后，实验室仪器可以以与原始流体流相反的方向将收集流体通过过滤器，从而将颗粒物质从过滤器上洗涤并进入收集容器。 根据本发明的实验室仪器可以通过使已知体积的收集流体通过过滤器来提供具有已知浓度的样品，从而将收集的颗粒物质捕集在已知体积的收集流体中。
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