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    Colorimeter
    36.
    发明授权
    Colorimeter 失效
    色度计

    公开(公告)号：US2999417A

    公开(公告)日：1961-09-12

    申请号：US66368157

    申请日：1957-06-05

    Applicant: TECHNICON INSTR

    Inventor： JACK ISREELI

    IPC: G01N21/05

    CPC classification number: G01N21/05 ,  G01N2021/054

    Abstract: 846,171. Colorimeters. TECHNICON INTERNATIONAL Ltd. May 5, 1958 [June 5, 1957], No. 14340/58. Class 40(3). [Also in Group XX] In a colorimeter in which light from a source 34 is focused on a portion 152 of a flow cell 78, through which liquid is passed, and then falls on a photo-cell 110, the flow cell 78 is adjustable in position and comprises input and output arms 136, 138 which are connected by U-tubes 148, 162 and straight tubes 168, 164 to an intermediate arm 150 which includes the viewing portion 152; it is mounted in a holder 70 by means of a ball and socket joint l72, 180 wit a liquid outlet 182, a ball 186 and a disengageable socket 192 carried by a toggle 192, 206, and a spring 190 and abutment 188. The holder 70 is guided by pins 132 and slot 134 for adjustment in the direction 130 and the socket member 192 is adjustable laterally by a screwed bolt 198 on which it is pivoted. Light from the source 34 is focused at 68 by concave mirrors 62, 64 provided with central apertures 66, 67. A light filter assembly 92 is provided. The portion 152 of the flow cell may be of flat rectangular or of circular cross-section. Specification 774,711 is referred to.

    Method of sample preparation for sample analysis
    39.
    发明授权
    Method of sample preparation for sample analysis 失效
    样品分析样品制备方法

    公开(公告)号：US3879127A

    公开(公告)日：1975-04-22

    申请号：US27091172

    申请日：1972-07-12

    Applicant: TECHNICON INSTR

    Inventor： STORR KENNETH ,  BONNAFE MARCEL

    IPC: G01N1/34 ,  G01N1/00

    CPC classification number: G01N1/405

    Abstract: In the analysis of liquids, a whole liquid sample is absorbed onto an absorbent and porous sample carrier, such as a filter paper, and is then traversed by an eluting fluid to carry away one or more constituents of interest for analysis. Elution is preferably carried out under pressure. A sample holder comprises a simple plug and socketed body which are adapted to receive in clamping engagement therebetween a rigid plate of porous material, which acts as a support for a sample carrier.

    Abstract translation: 在液体分析中，将整个液体样品吸收到吸收剂和多孔样品载体（例如滤纸）上，然后通过洗脱液穿过以携带一个或多个感兴趣的成分进行分析。 洗脱优选在压力下进行。 样品保持器包括简单的插头和插座体，其适于接合在其间的多孔材料的刚性板，其作为用于样品载体的支撑件。

    Method of direct potentiometric analysis of a liquid sample
    40.
    发明授权
    Method of direct potentiometric analysis of a liquid sample 失效
    液体样品的直接电位分析方法

    公开(公告)号：US3840438A

    公开(公告)日：1974-10-08

    申请号：US24255672

    申请日：1972-04-10

    Applicant: TECHNICON INSTR

    Inventor： RAO K ,  AST T ,  PELAVIN M

    IPC: G01N27/416 ,  G01N33/483 ,  G01N35/08 ,  G01N27/46

    CPC classification number: G01N35/08

    Abstract: 1. A METHOD OF POTENTIOMETRIC ANALYSIS OF A SERIES OF LIQUID SAMPLES FOR A CONSTITUENT OF INTEREST UTILIZING A REFERENCE ELECTRODE AND A SENSING ELECTRODE HAVING AN ION-SELECTIVE SURFACE PORTION, SAID REFERENCE ELECTRODE AND SAID ION-SELECTION SURFACE PORTION OF SAID SENSING ELECTRODE DEFINING, IN PART, A FLOW-THRU CONDUIT, COMPRISING THE STEPS OF: FLOWING THE LIQUID SAMPLES SEQUENTIALLY IN A STREAM ALONG SAID CONDUIT; INTRODUCING GAS TO SEGMENT THE STREAM OF SAMPLE TO FORM GAS SEGMENTS INTERMEDIATE EACH SAMPLE AND ITS NEIGHBORING SAMPLES SO THAT EACH SAMPLE COMPRISES A LIQUID SEGMENT; PASSING SAID FLOWING STREAM ALONG SAID CONDUIT TO CONTACT SAID REFERENCE ELECTRODE AND SAID ION-SELECTIVE SURFACE PORTION OF SAID SENSING ELECTRODE WITH SAID SAMPLE LIQUID AND GAS SEGMENTS IN SAID FLOWING STREAM; LOCATING SAID ELECTRODES WITH RESPECT TO EACH OTHER SUCH THAT EACH SAMPLE LIQUID SEGMENT IN SAID STREAM BRIDGES SAID REFERENCE ELECTRODE AND SAID ION-SELECTIVE SURFACE PORTION OF SAID SENSING ELECTRODE; AND MEASURING THE ELECTRICAL POTENTIAL ACROSS SAID ELECTRODES FOR ANALYSIS OF SAID LIQUID SAMPLE SEGMENTS.

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