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公开(公告)号：US3915829A
公开(公告)日：1975-10-28
申请号：US29624472
申请日：1972-10-10
发明人： KREBS WILLIAM M
IPC分类号： G01N27/401 , G01N27/40
CPC分类号： G01N27/40
摘要： An electrochemical system includes a first electrode for sensing a fluid sample to be analyzed and a reference electrode. The reference electrode is disposed in electrolyte and a membrane separates the electrolyte from the fluid sample. The membrane has a multiplicity of parallel passages, the width of each passage being less than one-half micron, such that the passages provide a multiplicity of similar ionic junctions between the electrolyte and the fluid sample.
摘要翻译： 电化学系统包括用于感测待分析的流体样品的第一电极和参考电极。 参考电极设置在电解质中，并且膜将电解质与流体样品分离。 膜具有多个平行通道，每个通道的宽度小于半微米，使得通道在电解质和流体样品之间提供多个类似的离子结。
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12.发明授权Spectroscopic analysis apparatus utilizing a tubular heating element and a passive sample holder 失效利用管状加热元件和被动样品架的光谱分析装置
公开(公告)号：US3895873A
公开(公告)日：1975-07-22
申请号：US45779874
申请日：1974-04-04
CPC分类号： H05B3/0014 , G01N21/74
摘要： Spectroscopic analysis apparatus utilizes a tubular electrothermal heating element and a passive sample holder. The sample holder is insertable through an access opening in the heating element to rest in intimate heat transfer contact with an interior surface, and includes a portion which restricts vapor flow through the access opening.
摘要翻译： 光谱分析装置利用管状电热加热元件和被动样品架。 样品保持器可通过加热元件中的进入开口插入，以与内表面进行紧密的热传递接触，并且包括限制蒸气通过进入开口的部分。
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公开(公告)号：US3664178A
公开(公告)日：1972-05-23
申请号：US3664178D
申请日：1970-04-07
发明人： SPERGEL PHILIP , GAINES STANLEY L
IPC分类号： A61B5/00 , A61B5/08 , A61B5/083 , A61B5/145 , B01L7/00 , G01N1/00 , G01N21/05 , G01N33/483 , G01N35/00 , G01N7/10
CPC分类号： A61B5/145 , A61B5/02042 , A61B5/083 , A61B5/0833 , B01L7/00
摘要： Fluid analysis apparatus includes a sample chamber that has a constituent sensor in it and an inlet conduit connected to the sample chamber. A heater assembly surrounds the inlet conduit. The heater assembly includes a preheater stage, a final heater stage, and a heat supply stage disposed between the preheater and final stages. Tempering fluid is flowed sequentially through the preheater stage, the heat supply stage and final stage and around the sample chamber for maintaining the sample chamber and the constituent sensor at a stable temperature and heating the sample to that same temperature as it flows through the inlet conduit.
摘要翻译： 流体分析装置包括在其中具有构成传感器的样品室和连接到样品室的入口导管。 加热器组件围绕入口导管。 加热器组件包括预热器级，最终加热器级和设置在预热器和最终级之间的供热级。 回火流体顺序地流过预热器阶段，供热阶段和最后阶段以及样品室周围，用于将样品室和组分传感器保持在稳定的温度，并将样品加热至与流入入口管道相同的温度 。
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14.发明授权Compensated dc amplifier input stage employing junction field effect transistors 失效补偿直流放大器输入级采用连接场效应晶体管
公开(公告)号：US3517325A
公开(公告)日：1970-06-23
申请号：US3517325D
申请日：1967-03-09
发明人： BLACKMER DAVID E
CPC分类号： H03F1/306 , H03F3/3455
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公开(公告)号：US4466878A
公开(公告)日：1984-08-21
申请号：US457509
申请日：1983-01-12
IPC分类号： G01N27/404 , G01N27/49 , G01N27/54
CPC分类号： G01N27/404
摘要： A replaceable cartridge assembly for use with electrochemical analysis apparatus includes a housing of electrically insulating material that defines an annular electrolyte chamber with coupling structure at one end of the housing and a chamber port at the other end of the housing. A selectively permeable membrane extends across the port in sealing relation thereto. An elongated guide channel within the housing is surrounded by the electrolyte chamber and receives a cooperating connector stem that carries a socket-temperature sensor assembly. A cathode electrode projects coaxially upwardly from the end wall of the guide channel into the stem socket and the lower portion of the cathode electrode extends through the guide channel end wall such that its tip is exposed to the membrane. An anode electrode is disposed in the electrolyte chamber with an external contact surface adjacent the coupling structure. Electrolyte in the annular chamber extends through the chamber port into the region between the membrane and the tip of the cathode electrode to provide an electrically conductive path between the anode and cathode electrodes.
摘要翻译： 用于电化学分析装置的可替换的盒组件包括电绝缘材料的壳体，其限定了在壳体的一端处具有耦合结构的环形电解质室和在壳体的另一端处的腔室端口。 选择性渗透膜以密封关系延伸穿过端口。 壳体内的细长引导通道被电解质室包围，并且接收携带插座温度传感器组件的配合的连接器杆。 阴极电极从引导通道的端壁同轴地突出到杆插座中，并且阴极电极的下部延伸穿过引导通道端壁，使得其尖端暴露于膜。 阳极电极设置在电解质室中，外部接触表面邻近联接结构。 环形室中的电解质通过腔室端口延伸到膜和阴极电极的尖端之间的区域中，以在阳极和阴极之间提供导电路径。
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公开(公告)号：US4398333A
公开(公告)日：1983-08-16
申请号：US309033
申请日：1981-10-06
申请人： Philip D. Iantosca
发明人： Philip D. Iantosca
CPC分类号： B23P19/02 , Y10T29/49822 , Y10T29/53478 , Y10T29/53657
摘要： A storage and manipulating tool for replacement plunger heads includes a set of storage cavities in which replacement plunger heads (syringe tips) are stored. Each plunger head has an annular flange, and a socket for receiving the end of a cooperating plunger shaft and is stored in its cavity with its socket facing the open end of the storage cavity. The tool also includes elongated passage defining structure for receiving a related plunger shaft. The cross-sectional dimension of the elongated passage is uniform along its length and is less than the annular flange portion of a replacement plunger head stored in a cavity such that axial movement of a plunger shaft in the elongated passage is effective to remove the attached plunger head. The exposed attachment end of the plunger shaft is then inserted into a storage cavity to attach a replacement plunger head for removal from the storage cavity without handling the sealing surfaces of the plunger head.
摘要翻译： 用于更换柱塞头的存储和操纵工具包括一组存储空间，其中存储替换柱塞头（注射器尖端）。 每个柱塞头具有环形凸缘和用于接收配合的柱塞轴的端部的插座，并且其插座面向储存腔的开口端存储在其空腔中。 该工具还包括用于接收相关柱塞轴的细长通道限定结构。 细长通道的横截面尺寸沿其长度是均匀的，并且小于存储在腔中的置换柱塞头的环形凸缘部分，使得柱塞轴在细长通道中的轴向运动有效地移除附接的柱塞 头。 然后将柱塞轴的暴露的附接端插入存储空腔中，以安装用于从存储空间移除的替换柱塞头，而不处理柱塞头的密封表面。
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公开(公告)号：US4373812A
公开(公告)日：1983-02-15
申请号：US247351
申请日：1981-03-25
申请人： Bernard Stein , Hamid Keramaty , Romas A. Brickus
发明人： Bernard Stein , Hamid Keramaty , Romas A. Brickus
IPC分类号： G01N21/07
CPC分类号： G01N21/07
摘要： An improved analytical cuvette assembly includes structure defining a first chamber region that has a loading port through which a first reaction component is introduced for storage, structure defining a second chamber region having a loading port through which a second reaction component is introduced for storage, and barrier structure between the first and second chamber regions that has a crest portion that defines the lower edge of a transfer passage between the two chamber regions. The second chamber region includes an analysis region where the reaction product resulting from mixture of the two reaction components is subjected to analysis. Each chamber region is defined by opposed planar side wall surfaces and a planar base wall surface, and capillary flow inhibiting structure extends from the crest of the barrier structure along the intersection between a planar surface portion of the barrier structure and the side wall surface and along at least a portion of the intersection of the side wall surfaces and the base surface.
摘要翻译： 改进的分析反应杯组件包括限定第一室区域的结构，所述第一室区域具有装载端口，通过所述装载端口引入第一反应组分用于储存，结构限定具有加载端口的第二室区域，第二反应组分通过该装载端口被引入以供存储; 所述第一和第二室区域之间的阻挡结构具有限定两个室区域之间的传送通道的下边缘的波峰部分。 第二室区域包括其中由两个反应组分的混合物产生的反应产物进行分析的分析区域。 每个室区域由相对的平面侧壁表面和平面底壁表面限定，并且毛细管阻流结构沿着屏障结构的平坦表面部分和侧壁表面之间的交叉部分从阻挡结构的顶部延伸 所述侧壁面与所述基面的交点的至少一部分。
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公开(公告)号：US4361401A
公开(公告)日：1982-11-30
申请号：US161879
申请日：1980-06-23
摘要： Method and apparatus for automatically depositing predetermined reproducible amounts of nebulized samples into a furnace atomizer of an atomic absorption spectrophotometer, the atomizer being provided with an aperture, wherein a plurality of sample containers containing samples to be analyzed are arranged and successively transported on a sample supporting device, with the sample containers being open at their upper ends. The samples are aspirated from the containers via a suitable means and into a nebulizer-mixing chamber device wherein they are nebulized and mixed until such time that the nebulized sample achieves full equilibrium therein. A means is provided for depositing the nebulized and now equilibrated sample from the chamber device through the aperture into the furnace atomizer. The deposition of predetermined and reproducible amounts of nebulized samples is controlled by a means which, in a preferred embodiment, comprises a vacuum source in valved communication with the means for depositing the nebulized sample in a way that aerosol deposition is effected only during the time period when the vacuum source is shut off from the means for depositing the aerosol sample by shutting off the valve.In another preferred embodiment, the means for controlling the amount of aerosol sample being deposited comprises a fluidic switch in communication with the nebulizer-mixing chamber device on the one hand and with the means for depositing the sample on the other. Hence, sample deposition takes place only during the time period when such communication from the chamber device to the deposition means is effected by the fluidic switch.
摘要翻译： 用于将预定的可再现量的雾化样品自动沉积到原子吸收分光光度计的炉式雾化器中的方法和装置，雾化器设有孔，其中将包含待分析样品的多个样品容器布置并依次在样品支持 装置，样品容器在其上端打开。 样品通过合适的方式从容器中吸出并进入雾化器 - 混合室装置，其中它们被雾化和混合，直到雾化样品在其中达到完全平衡的时间为止。 提供了一种装置，用于将来自室装置的雾化和现在平衡的样品通过孔进入炉雾化器。 预定和可重复数量的雾化样品的沉积通过一种方式来控制，在一个优选实施例中，这种装置包括与用于沉积雾化样品的装置进行阀门连通的真空源，其方式是仅在该时间段内进行气溶胶沉积 当通过关闭阀门将真空源与用于沉积气溶胶样品的装置切断时。 在另一个优选实施例中，用于控制被沉积的气溶胶样品量的装置包括一方面与雾化器 - 混合室装置连通的流体开关，以及用于将样品沉积在另一个上的装置。 因此，样品沉积仅在从腔室装置到沉积装置的这种连通通过流体开关实现的时间段内进行。
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公开(公告)号：US4361253A
公开(公告)日：1982-11-30
申请号：US175068
申请日：1980-08-04
CPC分类号： A61J1/20 , B05B11/00 , B05B11/0008
摘要： A device for dispensing liquid from an ampul or the like has a body that defines a cavity with an open entrance end for receiving an ampul. An annular seal in the cavity is in sealing engagement with an ampul as the ampul is telescopically inserted into the cavity, and an inlet tube secured in the cavity has an inlet end adjacent the open end of the cavity and an outlet end in fluid communication with a dispensing passage, so that when an ampul is in sealing engagement with the annular seal and the inlet end of the tube is submerged in liquid in the ampul, further axial movement of the ampul into the cavity creates a piston action which compresses air trapped in the cavity and forces liquid from the ampul through the inlet tube and the dispensing passage in a dispensing action.
摘要翻译： 用于从安瓿等分配液体的装置具有限定具有用于接收安瓿的开放入口端的空腔的主体。 空腔中的环形密封件与安瓿密封接合，因为安瓿伸缩地插入空腔中，并且固定在空腔中的入口管具有邻近空腔的开口端的入口端和与空腔的开口端流体连通的出口端 分配通道，使得当安瓿与环形密封件密封接合并且管的入口端浸没在安瓿内的液体中时，安瓿进一步轴向运动到空腔中形成活塞作用，其压缩被捕获的空气 空腔并且通过分配动作迫使来自安瓿的液体通过入口管和分配通道。
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公开(公告)号：US4338280A
公开(公告)日：1982-07-06
申请号：US250438
申请日：1981-04-02
申请人： Paul J. Ambers , R. Barry Stevens
发明人： Paul J. Ambers , R. Barry Stevens
CPC分类号： G01N35/1097
摘要： A liquid sample analyzer has an analysis chamber adapted to receive sample material to be analyzed, sensor means coupled to the analysis chamber for providing an output signal related to a constituent of the sample material, and sampler apparatus that includes structure defining a sample intake flow path that has an inlet port and is connected to the analysis chamber, and rinse apparatus in communication with a waste system. A wiper member slides along the intake tube for wiping sample residue from the outer surface of the intake tube. A drive moves the sample inlet port between a sample intake position in which the inlet port is exposed to the operator and a reset position in which the inlet port is aligned with and the wiper is seated on the rinse apparatus. When the sample inlet port is in the sample intake position sample material is flowed into the sample intake flow path and when the sample inlet port is in reset position cleaning fluid is flowed through the sample flow path and against a surface of the wiper member for removing sample residue from the wiper member.
摘要翻译： 液体样品分析器具有适于接收待分析的样品材料的分析室，耦合到分析室的传感器装置，用于提供与样品材料的组成成分相关的输出信号;以及采样器装置，其包括限定采样进气流路 其具有入口并连接到分析室，以及与废物系统连通的冲洗装置。 擦拭器构件沿着进气管滑动以从进气管的外表面擦拭样品残留物。 驱动器将样品进样口移动到入口端口暴露于操作者的样品进样位置和入口端口对准的复位位置，并且擦拭器位于冲洗装置上。 当样品入口位于样品进样位置时，样品材料流入样品进样流动路径，当样品入口处于复位位置时，清洁流体流过样品流动路径并流过擦拭器构件的表面以除去 来自擦拭器构件的样品残留物。
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