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    Electrochemical cell for measuring ionic activity in a solution and its method of use
    4.
    发明公开
    Electrochemical cell for measuring ionic activity in a solution and its method of use 失效
    用于测量溶液中离子活性的电化学细胞及其使用方法

    公开(公告)号：EP0350116A3

    公开(公告)日：1990-07-04

    申请号：EP89201743.5

    申请日：1989-06-29

    Applicant: INSTRUMENTATION LABORATORY S.p.A.

    Inventor： Calzi, Claudio

    IPC: G01N27/28

    CPC classification number: G01N27/403

    Abstract: An electrochemical cell for measuring the activity of one or more ionic species such as pNa, pK, pCa, pNH₄, pCl etc. consisting of two sensors selective to the actual ionic species, one of which is used as the reference electrode and the other as the measurement electrode. The two sensors are chosen preferably identical. The electrode used as the reference electrode is brought into contact with a solution of known ionic activity and an ionic strength which is greater, equal to or substantially greater than that of the unknown solution to be measured. The measurment electrode is brought into contact with the unknown solution to be measured, while a third electrode is used purely for instrumental reasons and does not participate in the measurement.

    Method for the quantitative determination of calcium in biological fluids through direct potentiometry
    6.
    发明公开
    Method for the quantitative determination of calcium in biological fluids through direct potentiometry 失效
    Verfahren zur Mengenbestimmung von Kalzium in biologischenFlüssigkeitendurch direkte Potentiometrie。

    公开(公告)号：EP0153783A2

    公开(公告)日：1985-09-04

    申请号：EP85200206.2

    申请日：1985-02-19

    Applicant: INSTRUMENTATION LABORATORY S.p.A.

    Inventor： Premoli, Pietro ,  Manzoni, Angelo ,  Calzi, Claudio

    IPC: G01N33/487 ,  G01N27/28

    CPC classification number: G01N33/84 ,  H02K19/34 ,  H02K21/48 ,  Y10T436/10 ,  Y10T436/106664

    Abstract: Description of a method for the potentiometric determination of the total calcium (II) content in biological fluids (serum, plasma and urine) based on dilution of the sample.
    The results obtained, when compared to the usual methods in current use, show the validity of the proposed method; furthermore, the pH of the buffer solution used for diluting the sample guarantees optimum operating conditions as well as long working life of the potentiometric sensing elements and maximum reliability when compared to other methods employing acidification of the sample.

    Abstract translation: 描述根据样品的稀释度电位测定生物液体（血清，血浆和尿液）中总钙（II）含量的方法。 ...得到的结果与当前使用的通常方法相比较，显示了所提出方法的有效性; 此外，与使用样品酸化的其他方法相比，用于稀释样品的缓冲溶液的pH保证最佳操作条件以及电位传感元件的长使用寿命和最大可靠性。

    Method for producing a liquid phase calibration substance having a pre-established concentration of CO2 suitable for calibrating analytical instruments such as hemogasanalyzers
    8.
    发明公开
    Method for producing a liquid phase calibration substance having a pre-established concentration of CO2 suitable for calibrating analytical instruments such as hemogasanalyzers 失效
    一种用于在液相中制备Eichungssubstanz，与CO 2预先固定浓度，其适合于分析仪器如血液气体分析装置的校准过程。

    公开(公告)号：EP0530871A1

    公开(公告)日：1993-03-10

    申请号：EP92202343.7

    申请日：1992-07-29

    Applicant: INSTRUMENTATION LABORATORY S.p.A.

    Inventor： Tancredi, Gabrio ,  Calzi, Claudio

    IPC: G01N33/00 ,  G01N27/416 ,  G01N33/49

    CPC classification number: G01N33/4925 ,  G01N27/4163 ,  G01N33/0006 ,  Y10T436/10 ,  Y10T436/100833 ,  Y10T436/102499 ,  Y10T436/106664 ,  Y10T436/108331 ,  Y10T436/109163

    Abstract: A method for producing a liquid phase substance having a pre-established concentration of CO₂ suitable for calibrating analytical instruments such as hemogasanalyzers consists in:

    preparing an aqueous solution of precisely known strength of a water-soluble salt of carbonic acid (bicarbonate or alkaline carbonate),
    then transferring said solution to a flow reactor containing a cation exchange resin in hydrogenionic form,
    passing the aforesaid solution of carbonic acid salt through the aforesaid cation resin,
    thereby achieving the reaction of producing a pre-established quantity of CO₂, and
    transferring the eluate thus obtained directly to the analytical instrument for calibration.

    Abstract translation: 如hemogasanalyzers besteht中：一种制造具有适合用于校准分析仪器CO 2的预先建立的浓度的液体相物质的方法准备wässrige的碳酸的水溶性盐的精确的已知浓度的溶液（碳酸氢盐或碱金属碳酸盐） ，然后转移环所述溶液的流动反应器包含在hydrogenionic形式的阳离子交换树脂，使碳酸盐的上述溶液通过上述阳离子树脂，由此实现生产CO 2的预先建立的量的反应，并传递环的洗脱液 从而直接获得用于校准的分析仪器。 我

    Method, apparatus and solution for calibration of partial pressure value
    9.
    发明公开
    Method, apparatus and solution for calibration of partial pressure value 失效
    Verfahren，Vorrichtung undLösungzur Eichung vonPartialdrücken。

    公开(公告)号：EP0355896A2

    公开(公告)日：1990-02-28

    申请号：EP89202034.8

    申请日：1989-08-03

    Applicant: INSTRUMENTATION LABORATORY S.p.A.

    Inventor： Calabrese, Gary Stephen ,  Calzi, Claudio

    IPC: G01N27/416

    CPC classification number: G01N27/4163

    Abstract: Electrodes for the measurement of pCO2 and/or pO2 are calibrated with an exposed aliquot of a calibration liquid. A constituent such as a ferrioxalate salt in the calibration liquid is converted to the gas in a reproducible concentration by exposure of the aliquot to light. In some instances, the calibration liquid is equilibrated with air prior to exposure. Some mechanisms of light generation of carbon dioxide also consume oxygen, so as to depress the pO2 value by a reproducible amount. The use of two different calibration liquids enables both one-point and two-point calibration of the Clark oxygen electrode and the Severinghaus pCO2 electrode of a blood gas instrument.
    Aqueous acidic ferrioxalate compositions are disclosed for use as calibrants of pCO2 and of pO2 after photodecomposition. Compositions with high iron(III) to oxalate molar ratios (e.g., 5:1 to 100:1 with 0.3 to 15 millimolar oxalate) produce carbon dioxide on exposure without oxygen consumption. Compositions with low iron(III) to oxalate ratios (e.g., 1:1000 to 1:2000) with 0.1 to 5 millimolar iron(III) produce carbon dioxide on exposure with concurrent oxygen consumption. Use of the two types of compositions enables calibration values to be established with varying pCO2 values and with, respectively, high and low pO2 values.

    Abstract translation: 测量pCO2和/或pO2的电极用标准液体的暴露等分试样进行校准。 通过将等分试样暴露于光，将校正液中的草酸盐等成分如可再现的浓度转化为气体。 在某些情况下，在曝光之前用空气平衡校准液。 二氧化碳的光产生的一些机制也消耗氧气，以便将pO2值降低可重复的量。 使用两种不同的校准液体可以对血气仪器的Clark氧电极和Severinghaus pCO2电极进行一点和两点校准。 公开了酸性草酸铁酸酯组合物作为光分解后用作pCO 2和pO2的配位体。 具有高铁（III）至草酸酯摩尔比的组合物（例如，具有0.3至15毫摩尔草酸盐的5:1至100:1）在没有氧消耗的情况下产生二氧化碳。 具有0.1至5毫摩尔铁（III）的低铁（III）至草酸酯比例（例如1：1000至1：2000）的组合物在暴露于同时耗氧的情况下产生二氧化碳。 使用两种类型的组合物可以使用不同的pCO2值和分别为高和低pO2值建立校准值。

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