Methods for sampling aldehyde and ketone using 2,4-dinitrophenylhydrazine (DNPH) are reviewed with emphasis on the type of trapping media, the absorbing solution composition and stability and the sample flowrate. Pre- and post-sampling procedures are discussed as well as collected sample stability, detection range, contamination and interference. Different methods for generating standard atmospheres are discussed as well as collection efficiency and standards recovery. Aldehyde emissions measured using DNPH in engine exhaust are briefly reviewed with an overview of the effects of fuel type, engine concept and operation and exhaust gas aftertreatment. Finally, practices and recommendations are proposed to ensure the integrity of the sampling process and appropriateness to different applications.


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    Titel :

    Method procedures for sampling aldehyde and ketone using 2,4-dinitrophenylhydrazine—a review


    Beteiligte:
    Yacoub, Y (Autor:in)


    Erscheinungsdatum :

    1999-05-01


    Format / Umfang :

    15 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch






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