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    • 41. 发明授权
    • L/C detector cell assembly
    • L / C检测器电池组件
    • US4192614A
    • 1980-03-11
    • US928928
    • 1978-07-28
    • Charles F. deMey, IICharles C. Helms
    • Charles F. deMey, IICharles C. Helms
    • G01N21/05G01N30/74G01N21/02
    • G01N21/05G01N2030/746
    • A spectrophotometer detector cell assembly having improved sensitivity, has a cell defined by a bore through a body and closed at the ends by radiation transparent windows with inlet and outlet passages through the body to the bore, so that radiation passed through the sample fluid flowing through the bore is detected by a photodetector. The body, which is made of a thermally conductive material, is a large thermal mass is relation to the volume of the cell and a tubular inlet conduit, also made of a thermally conductive material, wraps around the body and connects to the inlet passage so that fluid flowing into the bore will tend to reach a stable temperature due to the heat sink effect of the body and conduit thereby stabilizing the refractive index of the fluid in the bore and enhancing the sensitivity of the photodetection. Sensitivity is further enhanced by focussing the radiant energy entering the bore and by concentrating the exiting radiation in a planar area in which the diameter of the bundle of exiting energy rays does not change with changes in the refractive index of fluid in the cell, and by having the latter area substantially coincide with the photodetector surface.
    • 具有改进的灵敏度的分光光度计检测器单元组件具有由孔穿过主体限定的单元,并且在端部处由辐射透明窗口封闭,入口和出口通道穿过主体到孔,使得穿过样品流体的辐射流过 孔由光电检测器检测。 由导热材料制成的主体是与电池体积相关的大的热质量,也由导热材料制成的管状入口导管围绕主体包裹并连接到入口通道,因此 流入孔中的流体将由于体和导管的散热效应而趋向于达到稳定的温度,从而稳定了孔中的流体的折射率并提高了光电检测的灵敏度。 通过聚焦进入膛孔的辐射能量和通过将出射辐射集中在其中出射能量束束的直径不随电池中流体的折射率的变化而改变的平面区域以及由 后者区域与光电检测器表面基本一致。
    • 42. 发明授权
    • Determination of cells in blood
    • 测定血液中的细胞
    • US4097237A
    • 1978-06-27
    • US774560
    • 1977-03-04
    • Bruce J. OberhardtJack Olich
    • Bruce J. OberhardtJack Olich
    • G01N33/49A61B5/145G01N33/487G01N21/02G01N31/02G01N31/22G01N33/16
    • G01N33/80G01N15/06G01N33/52G01N33/86G01N2015/0668
    • A method for determining a volume of red cells in a blood sample. The method includes the steps of flowing along a conduit a predetermined volume of the sample, introducing an agglutinating reagent and a predetermined volume of a dye into the conduit to mix with the sample and agglutinate the red cells, the dye being of known concentration on the introduction thereof, decanting the agglutinated red cells from the conduit, and colorimetrically measuring the concentration of the dye in the conduit, the agglutinating reagent being characterized by a relatively high positive electrical charge and the dye being water soluble and characterized by not penetrating said cells and not forming a precipitate with the agglutinating reagent or with the soluble components of the sample and not lysing the cells or altering the volume of the cells.
    • 一种用于测定血液样品中红细胞体积的方法。 该方法包括以下步骤:沿着导管流动预定体积的样品,将凝集试剂和预定体积的染料引入导管中以与样品混合,并将红细胞凝集,将已知浓度的染料溶于 引入它,从导管中倾倒凝集的红细胞,并通过比色测量导管中染料的浓度,凝集试剂的特征在于相对高的正电荷,染料是水溶性的,其特征在于不渗透所述细胞, 不与凝集试剂或样品的可溶组分形成沉淀物,而不会裂解细胞或改变细胞的体积。
    • 44. 发明授权
    • Method and apparatus for continuously determining total copper in an aqueous stream
    • 用于连续测定含水流中总铜的方法和装置
    • US3898042A
    • 1975-08-05
    • US43030774
    • 1974-01-02
    • DOW CHEMICAL CO
    • WEBB BENTON PBULLARD GORDON R
    • G01N21/75G01N31/16G01N33/18G01N21/02G01N29/00
    • G01N21/75G01N31/166G01N33/1813Y10T436/117497
    • A method for continuously determining the total copper content of an aqueous analysis stream containing at least about one part per billion total copper in at least one of ionic, particulate, and complexed forms which comprises: (a) providing a stream analysis instrument having a flow-through type cell and adapted for continuous measurement of light absorbance at about 435 nm; (b) contacting and intimately admixing the analysis stream with a continuous flow of hydrofluoric acid; (c) continuously filtering the acid-treated stream prior to introduction of said stream into the cell of the stream analysis instrument; (d) continuously adding to and mixing with the analysis stream an aqueous solution of a chelant-buffer reagent selected from the group consisting of ammonium and alkali metal citrates and one of the ammonium and alkali metal salts of nitrogen-containing chelates having from 1 to 5 carboxyl groups, or a mixture thereof, the quantity of the reagent being sufficient to adjust the pH of the stream to from about 6 to about 7; (e) continuously adding to and mixing with the analysis stream an aqueous solution of a water soluble dithiocarbamate reagent whereby a complex thereof is formed with the copper present in the buffered stream; (f) quantitatively detecting said complex by measuring, by means of the stream analysis instrument, the light absorbance of the treated stream at 435 nm; and (g) comparing the absorbance of the treated stream to that of similarly treated standard solutions of known copper content. An apparatus adapted to accomplishing this method is also described.
    • 一种用于连续地确定含有至少约十分之一十亿的总离子铜,至少一种离子,微粒和络合物形式的含水分析流的铜含量的方法,其包括:(a)提供具有流动性的流分析仪器 通过型细胞并适于连续测量约435nm处的吸光度; (b)使分析流与连续的氢氟酸流接触并密切混合; (c)在将所述物流引入流分析仪器的细胞之前,连续过滤酸处理的物流; (d)向所述分析流中连续添加和混合选自铵和碱金属柠檬酸盐的螯合缓冲剂的水溶液和含氮螯合物的铵和碱金属盐之一,其具有1至 5个羧基或其混合物,试剂的量足以将流的pH调节至约6至约7; (e)连续地向分析流中加入水溶性二硫代氨基甲酸盐试剂的水溶液,由此形成其中存在于缓冲流中的铜的络合物; (f)通过流式分析仪器测量处理过的物流在435nm处的光吸收值来定量检测所述复合物; 和(g)将经处理的流的吸光度与已知铜含量的类似处理的标准溶液的吸光度进行比较。 还描述了适于实现该方法的装置。
    • 45. 发明授权
    • Sample processing container
    • 样品加工容器
    • US3647386A
    • 1972-03-07
    • US3647386D
    • 1969-09-26
    • GILFORD INSTR LABOR INC
    • GILFORD SAUL R
    • B01L3/00G01N1/38G01N1/10G01N21/02
    • B01L3/505G01N1/38Y10T436/25625
    • A sample processing container, especially for use with samples of some fluid such as blood or blood serum contained in a short length of capillary tubing. The container comprises a flexible plastic bag having its lower end closed and having its upper end sealed to a relatively rigid header. The length of capillary tubing is arranged to be inserted into an elongate cavity or chamber that is formed in the center of the header along its length by way of an entrance at one end of the header. The opposite end of the cavity or chamber communicates with the interior of the bag so that when the length of capillary tubing is disposed in the cavity or chamber, a nozzle may be inserted into the entrance and diluent of a given amount forced through the length of tubing into the bag. This washes the length of tubing clean and provides the proper dilution for a mixture that is to be sampled. The entrance is plugged or, in the alternative, there is a valve in the connection between the header cavity or chamber and the bag that prevents reverse flow out of the bag. The bag can be shaken or kneaded manually or mechanically to assure homogeneity of the sample. A normally blocked entrance to the bag through the top of the header enables sample to be removed by a hollow needle or snorkle for testing as desired. In the alternative, an independent lateral passageway is provided in the header for withdrawing a sample by a dip tube. A second valve is provided at the lower end of the independent passageway at the bottom of the header to prevent reverse flow out of the bag. The header may have a slot, either open or closed for insertion of an identifying label that will be carried with the container. The header may be constructed for mounting on a suitable carrier, so that a plurality may be handled, stored, and viewed together.
    • 一个样品处理容器,特别适用于一些流体样品,如血液或血清中含有的毛细管。 容器包括柔性塑料袋,其下端封闭并且其上端密封到相对刚性的集管。 毛细管的长度被布置成插入细长的空腔或室中,细长的空腔或腔室通过其头部的一端处的入口沿其长度形成在集管的中心。 空腔或室的相对端与袋的内部连通,使得当毛细管的长度设置在空腔或腔室中时,喷嘴可以插入入口,并且给定量的稀释剂被迫穿过长度的 管子进入袋子。 这清洗了管道的长度,并为要采样的混合物提供了适当的稀释。 入口被堵塞,或者替代地,在头部空腔或腔室与袋之间的连接处存在防止从袋中反向流出的阀。 可以手动或机械地摇动或捏合袋子,以确保样品的均匀性。