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557 条记录 (耗时 0.014 秒)

    Auto-analytical apparatus and analytical methods
    81.
    发明授权
    Auto-analytical apparatus and analytical methods 失效
    自动分析仪器和分析方法

    公开(公告)号：US3865549A

    公开(公告)日：1975-02-11

    申请号：US29388972

    申请日：1972-10-02

    申请人： WELLCOME FOUND

    发明人： RILEY CLIFFORD

    IPC分类号： G01N35/00 ,  B01L3/00 ,  G01N1/38 ,  G01N31/00 ,  G01N31/14 ,  G01N31/16

    CPC分类号： B01L3/569 ,  G01N1/38 ,  Y10T436/11 ,  Y10T436/116664

    摘要： An auto-analytical machine for the analysis of liquid samples comprises, in combination, a reaction chamber, a sample reservoir for holding the sample to be analysed, connecting tubing having one end directed into the reaction chamber and the other end being arranged to be able to dip into a sample in the sample reservoir. A pressure controlled sample measuring device is adapted to move a predetermined quantity of sample into the connecting tubing, and a pressure control mechanism is arranged to move the predetermined quantity of sample into the reaction chamber. The measuring device and the control mechanism are adapted to move the sample by a change of fluid pressure in the connecting tubing. Reagents can be added to the reaction chamber in predetermined quantities, and a titration apparatus can supply a titration reagent at a slow rate until an end point is reached. A method of analysis of a liquid sample can be performed by using the above apparatus to draw a predetermined quantity of the sample into the reaction chamber by changes of fluid pressure so that an analytical reaction may be carried out in the reaction chamber upon the sample.

    摘要翻译： 用于分析液体样品的自动分析机组合包括反应室，用于保持要分析的样品的样品储存器，将一端引导到反应室中的连接管，并且另一端被布置成能够 浸入样品池中的样品。 压力控制样品测量装置适于将预定量的样品移动到连接管中，并且设置压力控制机构以将预定量的样品移动到反应室中。 测量装置和控制机构适于通过连接管道中的流体压力的变化来移动样品。 可以将试剂以预定量添加到反应室中，并且滴定装置可以以缓慢的速率供应滴定试剂，直到达到终点。 可以通过使用上述装置来进行液体样品的分析方法，以通过流体压力的变化将预定量的样品吸入反应室，从而可以在样品上在反应室中进行分析反应。

    Serial dilution apparatus
    82.
    发明授权
    Serial dilution apparatus 失效
    串联稀释装置

    公开(公告)号：US3776700A

    公开(公告)日：1973-12-04

    申请号：US3776700D

    申请日：1971-12-08

    申请人： LINBRO CHEM CO INC

    发明人： GALLANT R

    IPC分类号： G01N1/38 ,  G01N35/04 ,  G01N35/10 ,  G01N31/00 ,  G01N31/16 ,  G01N33/16

    CPC分类号： G01N35/04 ,  G01N1/38 ,  G01N35/026 ,  G01N35/028 ,  G01N35/1065

    摘要： Apparatus for making serial dilutions in longitudinal titration trays having equally spaced transverse rows of cups, providing an elevator vertically movable into upper and lower positions, a carriage for removably supporting and locating a tray thereon and being supported and guided on the elevator for horizontal movement lengthwise of a located tray, fixed oscillatory loops above the carriage and arranged for their alignment with the cups in any row in a located tray on movement of the carriage on the elevator in its lower position, and for their reach into the aligned cups on movement of the elevator into its upper position, and operating mechanism, including controls, performing in a presettable number of cycles in each of which the elevator is raised to its upper position, the loops are oscillated, the elevator is moved to its lower position, and the carriage is indexed to bring a next cup row in a tray thereon into alignment with the loops.

    摘要翻译： 用于在纵向滴定盘中进行连续稀释的装置，其具有等间隔的横排杯，提供可垂直移动到上部和下部位置的电梯，用于可拆卸地支撑和定位托盘的托架，并且在电梯上被支撑和引导以水平运动 定位的托盘上的固定的振荡环，并且布置成在托架在其较低位置的电梯上的运动时在与定位的托盘中的任何行中的杯对齐，并且在托架的运动中它们到达对准的杯子 电梯进入其上部位置，以及包括控制器的操作机构，以电梯升高到其上部位置的可预置的循环次数执行，环路振动，电梯移动到其下部位置，并且 托架被索引以将下一个杯子排放置在其中的托盘中，使其与环圈对齐。

    Method and apparatus for titrating liquids
    83.
    发明授权
    Method and apparatus for titrating liquids 失效
    用于滴定液体的方法和装置

    公开(公告)号：US3713774A

    公开(公告)日：1973-01-30

    申请号：US3713774D

    申请日：1970-02-04

    申请人： SOUTHWICK S

    发明人： SOUTHWICK S

    IPC分类号： G01N31/16 ,  B67D5/26 ,  G01N1/14

    CPC分类号： G01N31/16

    摘要： Apparatus for dosing from a titrant reservoir and transferring or metering discrete quantities of the titrant to an unknown sample. An electric analog signal is generated in response to liquid transference representative of the amount of liquid transferred. Calibration circuits weight the analog signal to reflect titrant concentration and sample volume and thereby provide direct readout on a display means, such as a digital voltmeter for example, of a titrated sample concentration. The calibration circuits also furnish analog subtraction of the analog signal to establish direct readout of the concentration of a back-titrated sample.

    摘要翻译： 用于从滴定剂储存器计量并将离散量的滴定剂转移或计量到未知样品的装置。 响应于代表传送液体量的液体转移而产生电模拟信号。 校准电路对模拟信号进行加权以反映滴定剂浓度和样品体积，从而在诸如滴定样品浓度的数字电压表的显示装置上提供直接读数。 校准电路还提供模拟信号的模拟减法，以建立直接读出反滴定样品的浓度。

    Apparatus for determination of alcohol titer in alcoholic liquids
    84.
    发明授权
    Apparatus for determination of alcohol titer in alcoholic liquids 失效
    用于测定酒精液体中酒精含量的装置

    公开(公告)号：US3705015A

    公开(公告)日：1972-12-05

    申请号：US3705015D

    申请日：1970-08-05

    申请人： ASS OUVRIERS INSTR PRECISION

    发明人： BONO DAVID ,  HON LUCIEN PRUD

    IPC分类号： G01N27/416 ,  G01N31/16 ,  G01N33/14

    CPC分类号： G01N33/146

    摘要： AN APPARATUS FOR THE DETERMINATION OF THE ALCOHOL CONTENT OF AN ALCOHOLIC LIQUID, ESPECIALLY ALCOHOLIC BEVERAGES OF THE FERMENTATION OR DISTILLATION TYPES. A SMALL KNOWN QUANTITY OF THE ALCOHOLIC BEVERAGE IS HEATED TO DISTILL THE ALCOHOL THEREOF INTO A PREDETERMINED QUANTITY OF A MINERAL OXIDIZING AGENT OF KNOWN CONCENTRATION AND PRESENT IN EXCESS. THE ALCOHOL IS CONVERTED TO ACETIC ACID AND THE UNREACTED OXIDIZING AGENT IS TITRATED WITH A REDUCING AGENT OF KNOWN NORMALITY, THE ENDPOINT BEING DETECTED BY MONITORING THE REDOX POTENTIAL. INCREMENTS OF ADDITION OF THE REDUCING AGENT ARE COUNTED WHEREBY THE ALCOHOL TITER IS READ OUT DIRECTLY UPON A COUNTER.

    Device for portioning and titrating liquid samples
    86.
    发明授权
    Device for portioning and titrating liquid samples 失效
    用于分选和滴定液体样品的装置

    公开(公告)号：US3652228A

    公开(公告)日：1972-03-28

    申请号：US3652228D

    申请日：1969-07-24

    申请人： CLAUDE BERNARD

    发明人： BERNARD CLAUDE

    IPC分类号： G01N1/18 ,  B01L11/00 ,  G01N31/16

    CPC分类号： G01N1/18 ,  Y10T137/8192 ,  Y10T137/86879

    摘要： The device is intended to portion a liquid sample into several portions of determined volume. It comprises members that are relatively displaceable from a first relative position to a second relative position. One of these members comprises a series of portion-receiving channels defining the above-mentioned volumes. The other member comprises a first series of channels which put the portion-receiving channels in communication with one another and with the exterior so that they can be filled with the liquid, in the first relative position, and a second series of channels communicating with the portion-receiving channels for collecting the portions retained in these latter channels, in the second relative position.

    摘要翻译： 该装置旨在将液体样品分成几个确定体积的部分。 它包括可从第一相对位置相对移位到第二相对位置的构件。 这些构件中的一个包括限定上述体积的一系列部分接收通道。 另一个构件包括第一系列通道，其将部分接收通道彼此连通并且与外部连通，使得它们可以在第一相对位置中被填充液体，并且第二系列通道与第二系列通道 部分接收通道，用于收集在第二相对位置中保留在这些后一通道中的部分。

    Titration automaton
    87.
    发明授权
    Titration automaton 失效
    ATION ATION自动机

    公开(公告)号：US3649205A

    公开(公告)日：1972-03-14

    申请号：US3649205D

    申请日：1970-04-08

    申请人： AJINOMOTO KK

    发明人： SHIRAKAWA TADASHI ,  INAGAKI TOHRU ,  SUZUKI TADAO ,  OGAWA KOJI

    IPC分类号： G01N31/16 ,  B01K3/00 ,  G01N27/56

    CPC分类号： G01N31/16

    摘要： An automatically operated titration system, or titration automaton, is provided for performing neutralization titrations, oxidation or reduction titrations, and for automatically recording the results thereof. Titration takes place in a rough stage followed by one or more progressively slower fine stages. A monitor is included to shut off the apparatus if any of the automated operations exceeds its preset maximum time.

    摘要翻译： 提供自动滴定系统或滴定自动机，用于进行中和滴定，氧化或还原滴定，并自动记录其结果。 滴定发生在粗糙的阶段，然后是一个或多个逐渐变慢的细小阶段。 如果任何自动化操作超过其预设的最大时间，则包括监视器以关闭设备。