ISSN: 0022-1198
CODEN: JFSCA
Page Count: 6

Some Separations of Black and Red Water-Soluble Fiber-Tip Pen Inks by Capillary Zone Electrophoresis and Thin-Layer Chromatography
Schudel, M
Research worker, Institut de Police Scientifique et de Criminologie,

Fanali, S
Research worker, Istituto di Cromatografia del C. N. R., Area della Ricerca di Roma,

(Received 21 August 1990; accepted 17 December 1990)

Abstract

Capillary zone electrophoresis was tried for analyzing water-soluble fiber-tip pen inks from documents. The separation process for the compounds—most of them move as anions—is usually less than 10 min. Some examples of possible applications, also combined with thin-layer chromatography, are given.

Keywords:
questioned documents, inks, electrophoresis, chromatographic analysis, capillary zone electrophoresis

Paper ID: JFS13135J
DOI: 10.1520/JFS13135J
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