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公开(公告)号：US6148659A
公开(公告)日：2000-11-21
申请号：US168819
申请日：1998-10-08
申请人： John E. Traina
发明人： John E. Traina
CPC分类号： G01N33/0016 , G01N33/0011
摘要： A gas concentration monitor has a pneumatic bridge having two parallel flowpaths containing a first conduit leg and a second conduit leg connected to an input line. Each leg has an entry orifice and an exit orifice through which a portion of the gas sample flows. Orifices need not be of equal size and or kept at the same temperature. A pump is connected to both legs for drawing the sample through the bridge. A condenser or absorber which removes the gas whose concentration is being determined is connected to the first leg between the entry orifice and the exit orifice. A differential pressure gauge measures the differential pressure between the first leg and the second leg which differential pressure changes due to removal of the target gas of measurement interest from the other gas fraction passing through the bridge towards discharge from the bridge. From that measurement one can calculate the concentration in the sample of the gas that was removed by the condenser or absorber.
摘要翻译： 气体浓度监测器具有气动桥，其具有两个平行的流路，其包含连接到输入线的第一管道腿和第二管道腿。 每个支腿具有入口孔和出口孔，气体样品的一部分通过该出口孔流动。 孔不需要相同的尺寸或保持在相同的温度。 泵连接到两条腿，用于通过桥将样品拉出。 去除其浓度被确定的气体的冷凝器或吸收器连接到入口孔口和出口孔口之间的第一腿部。 差压表测量第一腿部和第二腿部之间的压力差，由于通过桥梁的其他气体部分去除了从桥梁排出的测量值的目标气体而使压差发生变化。 从该测量可以计算通过冷凝器或吸收器去除的气体样品中的浓度。
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2.发明授权System and method for preconcentrating, identifying, and quantifying chemical and biological substances 失效预浓缩，鉴定和定量化学和生物物质的系统和方法
公开(公告)号：US6134944A
公开(公告)日：2000-10-24
申请号：US302047
申请日：1999-04-29
申请人： Conrad M. Yu , Jackson C. Koo
发明人： Conrad M. Yu , Jackson C. Koo
CPC分类号： G01N29/022 , G01N30/12 , G01N1/40 , G01N2030/121 , G01N2291/02466 , G01N2291/0256 , G01N2291/0423 , G01N2291/0426
摘要： A system and method for preconcentrating, identifying, and quantifying chemical and biological substances is disclosed. An input valve directs a first volume of a sample gas to a surface acoustic wave (SAW) device. The SAW device preconcentrates and detects a mass of a substance within the sample gas. An output valve receives a second volume of the sample gas containing the preconcentrated substance from the SAW device and directs the second volume to a gas chromatograph (GC). The GC identifies the preconcentrated substance within the sample gas. A shunt valve exhausts a volume of the sample gas equal to the first volume minus the second volume away from the SAW device and the GC. The method of the present invention includes the steps of opening an input valve for passing a first volume of a sample gas to a SAW device; preconcentrating and detecting a mass of a substance within the sample gas using the SAW device; opening an output valve for passing a second volume of the sample gas containing the preconcentrated substance to a gas chromatograph (GC); and then identifying the preconcentrated substance within the sample gas using the GC.
摘要翻译： 公开了一种用于预浓缩，鉴定和定量化学和生物物质的系统和方法。 输入阀将第一体积的样品气体引导到表面声波（SAW）装置。 SAW器件预浓缩并检测样品气体中物质的质量。 输出阀从SAW装置接收含有预浓缩物质的样品气体的第二体积，并将第二体积引导至气相色谱仪（GC）。 GC识别样品气体中的预浓缩物质。 分流阀排出等于第一容积的样品气体的体积减去远离SAW器件和GC的第二体积。 本发明的方法包括以下步骤：打开用于将第一体积样品气体传递到SAW器件的输入阀; 使用SAW器件预浓缩和检测样品气体内的物质的质量; 打开输出阀，用于将含有预浓缩物质的第二体积的样品气体通入气相色谱仪（GC）; 然后使用GC鉴定样品气体中的预浓缩物质。
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公开(公告)号：US5861757A
公开(公告)日：1999-01-19
申请号：US758123
申请日：1996-11-25
CPC分类号： G01N27/226 , G01N27/221 , G01N33/44
摘要： An instrument for measuring the dielectric constant of samples with complex or uncertain geometries that can include unusually shaped single sample pieces or collections of differently shaped sample pieces such as powders. The premise of the measurement technique is that a reference capacitor plate and a sample capacitor plate are exposed to a dynamically-changing solvent mixture. When the capacitance of these two fixtures become equal at the point at which a particular solvent mixture is reached, the dielectric constant of the sample is then known.
摘要翻译： 用于测量具有复杂或不确定几何形状的样品的介电常数的仪器，其可以包括异常形状的单个样品片或不同形状的样品片（例如粉末）的集合。 测量技术的前提是参考电容器板和样品电容器板暴露于动态变化的溶剂混合物。 当这两种固定装置的电容在达到特定溶剂混合物的点变得相等时，样品的介电常数就是已知的。
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4.发明授权
公开(公告)号：US5659126A
公开(公告)日：1997-08-19
申请号：US635367
申请日：1996-04-19
申请人： Milton Farber
发明人： Milton Farber
IPC分类号： G01N1/22 , G01N1/26 , G01N7/14 , G01N30/02 , G01N30/88 , G01N33/28 , G01N7/00 , B01D57/00 , G01N31/06
CPC分类号： G01N30/88 , G01N1/26 , G01N33/2841 , G01N7/14 , G01N2001/2229 , G01N2030/025 , G01N2030/8886
摘要： A gas chromatograph measures the gas concentration levels of fault gases contained in the gas within a headspace above the electrical insulating oil supply contained in a power transformer. An on-line fault detection system involves gas samples taken from transformers at a utility site in sequence with automatically controlled timer valves which open to draw a gas sample from each transformer headspace and then transfer the gas directly to a single gas chromatograph. The gas chromatograph includes an integrator which calculates the concentration level of each fault gas in the gas sample. The resulting fault gas data are fed to a computer programmed with a partition function based on Henry's Law to convert the headspace fault gas data to fault gas concentration levels within the transformer oil. This produces gas fault analysis data which are used to provide an early warning of specific transformer problems correlated to, indicative of and detected by excessive dissolved fault gas concentration levels in the oil identified with particular transformer faults. The invention avoids costly and time consuming prior art analysis techniques of extracting fault gases from the oil sample in an independent operation before the concentration levels can be measured.
摘要翻译： 气相色谱仪测量包含在电力变压器中的电气绝缘油源上方的顶部空间内气体中所含的气体浓度水平。 在线故障检测系统包括从公用事业现场的变压器采集的气体样品，其中自动控制的定时阀打开以从每个变压器顶部空间抽取气体样品，然后将气体直接传送到单个气相色谱仪。 气相色谱仪包括一个积分器，用于计算气体样品中每个故障气体的浓度水平。 所产生的故障气体数据被馈送到基于亨利定律的用分区功能编程的计算机，以将顶空故障气体数据转换为变压器油内的故障气体浓度水平。 这产生气体故障分析数据，用于提供特定变压器问题的早期警告，这些问题与特定变压器故障识别的油中过度溶解的故障气体浓度水平相关，指示和检测。 本发明避免了在可以测量浓度水平之前在独立操作中从石油样品中提取故障气体的昂贵且耗时的现有技术分析技术。
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5.发明授权Method for the removal of interfering substances, including caffeine, in theophylline assays 失效在茶碱测定中去除干扰物质（包括咖啡因）的方法
公开(公告)号：US4460695A
公开(公告)日：1984-07-17
申请号：US334165
申请日：1981-12-24
CPC分类号： G01N33/94 , Y10S436/815 , Y10S436/825 , Y10T436/145555 , Y10T436/147777 , Y10T436/25125 , Y10T436/255
摘要： A method for the separation of theophylline and caffeine contained in body fluids is provided. A macroreticular styrene-divinylbenzene copolymer resin activated by a protic solvent is utilized. The body fluid is eluted with water in an isocratic manner to afford a theophylline sample uncontaminated with caffeine. Such samples are useful in immunoassay procedures for the measurement of theophylline.
摘要翻译： 提供了分离体液中所含的茶碱和咖啡因的方法。 使用由质子溶剂活化的大网状苯乙烯 - 二乙烯基苯共聚物树脂。 体液以等度方式用水洗脱，得到不含咖啡因的茶碱样品。 这些样品可用于测定茶碱的免疫测定方法。
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公开(公告)号：US4374089A
公开(公告)日：1983-02-15
申请号：US341396
申请日：1982-01-21
申请人： Kumiy R. Iwao , James V. Lovie
发明人： Kumiy R. Iwao , James V. Lovie
CPC分类号： G01N30/18
摘要： A nut assembly for use on an injection switch for a chromatograph has a nut surrounded by a moveable member which is disposed to travel co-linearly with respect to the axis of the nut. The moveable member is biased so that its upper end extends above the nut to engage the body of a sample syringe. Upon engagement with the sample syringe the moveable member moves downwardly against the bias means. The bias means then triggers the microswitch. Upon withdrawal of the needle of the sample syringe the moveable member returns to its original position.
摘要翻译： 在用于色谱仪的注射开关上使用的螺母组件具有被可移动构件包围的螺母，该可移动构件设置成相对于螺母的轴线共线运动。 可移动构件被偏压，使得其上端在螺母上方延伸以接合样品注射器的主体。 在与样品注射器接合时，可移动构件相对于偏压装置向下移动。 偏置装置然后触发微动开关。 在取样样本注射器的针头后，可移动部件返回其初始位置。
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公开(公告)号：US4346584A
公开(公告)日：1982-08-31
申请号：US199110
申请日：1980-10-20
申请人： John R. Boehringer
发明人： John R. Boehringer
IPC分类号： A61B5/083 , A61B5/087 , G01N33/497 , G01N31/06
CPC分类号： G01N33/4972 , A61B5/0836 , A61B5/0876 , G01N33/497
摘要： Apparatus for automatically analyzing a gas sample to determine the concentration of an absorbable gas therein, such as carbon dioxide in a patient's out breath. In the preferred embodiment, the end tidal volume of the patient's out breath is automatically sampled, drawn into a sample cylinder, circulated through an absorber, and the volumetric reduction effected by the absorption of the absorbable gas measured by a pressure indicator, all of which is cycled by the normal respiration cycle of the patient through an end of breath detector mechanism. The end of breath detector mechanism may also be used as a gas flow meter generally.
摘要翻译： 用于自动分析气体样品以确定其中可吸收气体的浓度的装置，例如患者呼出的二氧化碳。 在优选实施例中，患者出呼吸的终端潮气量被自动采样，被抽吸到样品气瓶中，通过吸收器循环，并且通过由压力指示器测量的可吸收气体的吸收而实现的容积减小，全部 由患者的正常呼吸循环通过呼气末检测器机构循环。 呼气检测器机构也可以通常用作气体流量计。
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公开(公告)号：US4345463A
公开(公告)日：1982-08-24
申请号：US142670
申请日：1980-04-22
申请人： Wayne Wilson , George Rosko , James R. Patmore
发明人： Wayne Wilson , George Rosko , James R. Patmore
CPC分类号： G01N33/0027 , G01N30/8658 , G01N30/8665 , G01N2030/042 , G01N2030/8886
摘要： A system for measuring on-line the energy content and flow of a gas mixture within a pipeline. The system includes a gas chromatograph for producing a time varying signal related to the component composition of the gas mixture. The pressure and temperature of the gas mixture is measured and these signals as well as the time varying signal from the chromatograph are converted to digital form. These signals are applied to control means which produces energy and flow rate signals of the gas mixture in the pipeline based on the on-line pressure, temperature and component composition. These signals are corrected by supercompressibility factor signals as a function of component composition.
摘要翻译： 用于在线测量管道内的气体混合物的能量含量和流量的系统。 该系统包括用于产生与气体混合物的组分组成相关的时变信号的气相色谱仪。 测量气体混合物的压力和温度，并将这些信号以及来自色谱仪的时变信号转换为数字形式。 这些信号被施加到控制装置，其基于在线压力，温度和组分组成产生管道中的气体混合物的能量和流速信号。 这些信号由作为组分组成的函数的超压缩因子信号校正。
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公开(公告)号：US4317810A
公开(公告)日：1982-03-02
申请号：US126525
申请日：1980-03-02
申请人： Seymour P. Halbert , Milton Anken
发明人： Seymour P. Halbert , Milton Anken
IPC分类号： G01N33/545 , G01N31/06 , G01N33/48 , G01N33/52 , G01N33/54
CPC分类号： G01N33/545 , Y10S436/809 , Y10S530/816
摘要： A disc-shaped insoluble matrix is formed of a polymeric material having a layer of reactive groups which react with proteins binding them covalently and uniformly to its surface. An antibody adapted for use in immunoassay of antigens associated with hepatitis is covalently bonded to the reactive groups. The matrix is provided with irregular, e.g., waffle-like, surfaces designed to increase the amount of antibody that will be in contact with a test solution such as serum.
摘要翻译： 盘状不溶性基质由具有反应性基团的聚合物材料形成，所述反应性基团与与其表面共价均匀结合的蛋白质反应。 适用于免疫测定与肝炎相关的抗原的抗体与反应性基团共价键合。 该基质具有不规则的，例如华夫饼样的表面，其设计用于增加将与诸如血清的测试溶液接触的抗体的量。
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公开(公告)号：US4289620A
公开(公告)日：1981-09-15
申请号：US92980
申请日：1979-11-09
申请人： Shoji Hara
发明人： Shoji Hara
CPC分类号： B01D15/22 , G01N30/6026 , G01N30/6004 , G01N30/6039 , G01N30/6082
摘要： An improved high pressure glass column for high performance liquid chromatography which comprises, both ends of the high pressure glass column on which flanges made of the same glass material are arranged, two column end fitting plugs which are made of a fluorine-contained resin and have a small bore for the effluent flow bored in their center, a piston part of a fitting plug inserted in the bore syringe part of the column end and a flange arranged to attach to the flange of the glass column tube, where the inside of the end of the piston part is formed with a conic shape and one or more narrow circled hollows are formed around the outlet of the piston part, two filters made of the fluorine-contained resin placed in between the both ends of the piston part of the fitting plug and the solvent material packed into the column, and two clips fitting and holding the two flanges of the column and the plugs.
摘要翻译： 一种用于高效液相色谱的改进的高压玻璃柱，包括由相同玻璃材料制成的凸缘布置的高压玻璃柱的两端，两个由含氟树脂制成的柱端配件塞，并且具有 用于在其中心钻出的流出物流的小孔，插入柱端的孔注射器部分中的配件塞的活塞部分和布置成附接到玻璃柱管的凸缘的凸缘，其中端部的内部 活塞部件形成为圆锥形状，并且在活塞部分的出口周围形成一个或多个窄圆形的中空部分，两个由含氟树脂制成的过滤器放置在配件塞的活塞部分的两端之间 并将溶剂材料装入柱中，并将两个夹子装配并保持柱子和插头的两个凸缘。
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