A sensor for the in situ detection of a target chemical species, comprising a gas permeable membrane having a sampling side and an opposing analytical side, wherein the sampling side of the membrane is capable of receiving a sample and the membrane is permeable to target chemical species present in the sample. A weak acid or a weak base is in contact with the analytical side of the membrane, and a conductivity detector is in contact with the weak acid or weak base. In use, target chemical species present in the sample permeate through the membrane and react with the weak acid or weak base, producing ionic species and changing the conductivity.


    Access

    Download


    Export, share and cite



    Title :

    A SENSOR


    Additional title:

    SENSOR
    DÉTECTEUR


    Contributors:
    ZHAO HUIJUN (author)

    Publication date :

    2021-07-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B01D SEPARATION , Trennen / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS



    SENSOR AND SENSOR SYSTEM

    HATTORI TOMONARI / NISHIO HITOSHI / SUZUKI AKIHIRO et al. | European Patent Office | 2022

    Free access

    SENSOR AND SENSOR ASSEMBLY

    KRAUSE MICHAEL / GIRBEA MARCEL-CORNEL | European Patent Office | 2023

    Free access

    Sensor-Modul für einen Sensor, Sensor mit einem solchen Sensor-Modul und Brennkraftmaschine mit einem solchen Sensor

    WEIDELE HORST / TOTH ARON / HEROLD MATTHIAS et al. | European Patent Office | 2022

    Free access

    ULTRASONIC SENSOR AND SENSOR FIXTURE

    HARADA TAKEHITO / UEDA KEISUKE | European Patent Office | 2021

    Free access

    WIM sensor with sensor package

    PFLUGER KIM | European Patent Office | 2019

    Free access