Volume 19, Issue 4 (October 1974)

    Technique for the Separation of Ink Dyestuffs with Similar RF Values

    (Received 25 January 1974; accepted 4 March 1974)

    Published Online: October

    CODEN: JFSOAD

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    Abstract

    The use of Eastman Kodak Chromagram® sheet for the separation of the various dyestuffs used in the compounding of inks has already been documented [1]. It has developed into one of the more useful techniques for the identification of inks. Both silica gel and cellulose Chromagram® sheets are now commonly used with a variety of eluent systems. Notwithstanding the variety of techniques available to the chromatographer, there are still certain mixtures of dyestuffs which do not yield clear-cut separations. The technique which will be reported here allows better separations to be made when used on these difficult mixtures.


    Author Information:

    Kuranz, RL
    Ink analyst, Janesville, Wis.


    Stock #: JFS10475J

    ISSN: 0022-1198

    DOI: 10.1520/JFS10475J

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    Author
    Title Technique for the Separation of Ink Dyestuffs with Similar RF Values
    Symposium , 0000-00-00
    Committee E30