ISSN: 0022-1198
CODEN: JFSCA
Published Online: 1 October 1974
Page Count: 3

Technique for the Separation of Ink Dyestuffs with Similar RF Values
Kuranz, RL
Ink analyst, Wis.

(Received 25 January 1974; accepted 4 March 1974)

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.

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Paper ID: JFS10475J
DOI: 10.1520/JFS10475J
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