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  • Determination of epichlorohydrin by sulfite derivatization and ion chromatography : characterization of the sulfite derivatives by chromatography-mass spectrometry
    Bruzzoniti, Maria Concetta ...
    This work is an upgrade of a previously developed method [J. Chromatogr. A 884 (2000) 251] for epichlorohydrin determination by ion chromatography (IC) and conductivity detection. Here, an ion ... chromatography-mass spectrometry (IC-MS) coupling has been employed for the separation and the identification of products of epichlorohydrin when reacted with the nucleophilic agent SO32-.The high capacity column (IonPac AS11-HC) used for separation provided good resolution. This allowed evaluation of the IC behavior and mass spectrometric identification of epichlorohydrin sulfite derivatives. By using atmospheric pressure interfaces (ESI and APCI) the following species were tentatively identifiedČ 2,3-dihydroxy-1-propanesulfonic, 2,3-epoxy-1-propanesulfonic, 1,3-dihydroxy-2-propanesulfonic and 3-oxetanesulfonic acids and 2-hydroxy-1,3-propanedisulfonic acid (or its isomer 3-hydroxy-1,2-propanedisulfonic acid). The study showed that chlorine atoms are displaced from epichlorohydrin during the reaction, while mass spectrometry confirmed that none of the products formed contains chlorine atoms.
    Vir: Journal of chromatography. A. - ISSN 0021-9673 (Vol. A 1034, no. 1/2, 2004, str. 243-247)
    Vrsta gradiva - članek, sestavni del
    Leto - 2004
    Jezik - angleški
    COBISS.SI-ID - 3051802

vir: Journal of chromatography. A. - ISSN 0021-9673 (Vol. A 1034, no. 1/2, 2004, str. 243-247)
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