STP555: Instrumentation for the Measurement of Nitrogen Dioxide

    Stevens, RK
    Chiefchiefresearch chemist, National Environmental Research Center, Research Triangle Park, N. C.

    Clarke, T
    Chiefchiefresearch chemist, National Environmental Research Center, Research Triangle Park, N. C.

    Baumgardner, R
    Chiefchiefresearch chemist, National Environmental Research Center, Research Triangle Park, N. C.

    Hodgeson, JA
    Chief, National Environmental Research Center, Las Vegas, Nev.

    Pages: 8    Published: Jan 1974


    Abstract

    A comparative discussion is given on the operational and response characteristics of colorimetric, chemiluminescent, and electrochemical monitors for ambient nitrogen dioxide (NO2). Recent studies have demonstrated that ozone (O3) is a significant negative interference with the automated colorimetric technique, and details of these studies are given. The latest technology for the conversion of NO2 to nitric oxide (NO) for subsequent chemiluminescent detection is discussed. The mechanism of operation and the chemistry involved with newly developed electrochemical monitors for NO2are described.

    Keywords:

    air, chemiluminescence, colorimetry, electrochemistry, nitrogen dioxide, ozone, evaluation


    Paper ID: STP38965S

    Committee/Subcommittee: D22.01

    DOI: 10.1520/STP38965S


    CrossRef ASTM International is a member of CrossRef.