Sensor element for determining the amount of oxygen dissolved in a sample
    1.
    发明授权
    Sensor element for determining the amount of oxygen dissolved in a sample 失效
    用于确定溶解在样品中的氧的量的传感器元件

    公开(公告)号:US5272090A

    公开(公告)日:1993-12-21

    申请号:US861189

    申请日:1992-03-31

    IPC分类号: G01N21/64 G01N21/77 G01N33/50

    摘要: A method and apparatus are described for an accurate determination of the concentration of a gas, vapor or a gas dissolved in a sample which compensate for variations in temperature and light - source intensity. The apparatus comprises a sensor containing a fluorescent reagent connected to a transfer optic, such as fiber optics prism or glas pipes, and to a reference sensor containing the same fluorescent reagent. The reference sensor is encapsulated in an environment containing air. The light emitted from the first sensor and the reference sensor is determined and recorded automatically, the concentration of the gas being calculated based on the output from said light detectors using calibration data of the fluorescent reagent present in the sensors. The reagent is immobilized in the sensor by a glue, such as a silicon glue.

    摘要翻译: 描述了用于准确测定溶解在样品中的气体,蒸汽或气体的浓度以补偿温度和光源强度的变化的方法和装置。 该装置包括含有荧光试剂的传感器,该荧光试剂连接到诸如光纤棱镜或玻璃管的转移光学元件,以及含有相同荧光试剂的参考传感器。 参考传感器被封装在含有空气的环境中。 从第一传感器和参考传感器发射的光被自动确定并记录,使用存在于传感器中的荧光试剂的校准数据,根据来自所述光检测器的输出计算气体的浓度。 试剂通过胶水例如硅胶固定在传感器中。

    Method for the manufacture of a fluorescent chemical sensor for
determining the concentration of gases, vapors or dissolved gases in a
sample
    2.
    发明授权
    Method for the manufacture of a fluorescent chemical sensor for determining the concentration of gases, vapors or dissolved gases in a sample 失效
    用于制造荧光化学传感器的方法,用于确定样品中气体,蒸汽或溶解气体的浓度

    公开(公告)号:US5237631A

    公开(公告)日:1993-08-17

    申请号:US861130

    申请日:1992-03-31

    IPC分类号: G01N21/64 G01N21/77

    摘要: A method for the manufacture of an improved sensor element for determining the amount of oxygen in a sample, comprises the steps of: (a) mixing a fluorescent reagent with a silicone oil which has a molecular weight of 6,700 to 80,000 and most preferably in the range of between 15,000 and 30,000; (b) heating the mixture at a temperature in the range of between 150.degree. to 350.degree. C. and (c) adding an optical insulating material forming an optical insulating layer onto the fluorescent reagent. Optionally, a crosslinking agent is incorporated. In order to increase the efficiency of fluorescence, an additionally layer of light scattering material is inserted between the fluorescent reagent layer and that of the insulator.

    摘要翻译: 一种用于制造用于确定样品中的氧量的改进的传感器元件的方法,包括以下步骤:(a)将荧光试剂与分子量为6,700至80,000的硅油混合,最优选在 范围在15,000到30,000之间; (b)在150〜350℃的温度范围内加热混合物,(c)在荧光试剂上添加形成光学绝缘层的光学绝缘材料。 任选地,引入交联剂。 为了提高荧光效率,在荧光试剂层和绝缘体的荧光试剂层之间插入另外的光散射材料层。