Volume 44, Issue 6 (November 1999)

    Analysis of Ballpoint Pen Inks by Field Desorption Mass Spectrometry

    (Received 11 December 1998; accepted 22 February 1999)

    CODEN: JFSOAD

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    Abstract

    Destructive identification of ballpoint pen ink was performed using field desorption mass spectrometry (FDMS) to determine the basic dyes in ballpoint pen ink. Seven different brands of black, blue, and red ballpoint pen inks (total: 21 samples) were examined in this study. A 1-mm section was cut from an ink line drawn on paper and used as the sample. Extraction was performed with methanol. Analysis of each extract by FDMS showed the molecular ion peak of each dye and the black, blue, and red inks were then classified into 6, 6, and 6 types, respectively, based on the ions detected. The results indicated that it was possible to distinguish between manufacturers of ballpoint pens. This analysis of ballpoint pen inks was found to be effective and the method was applied to the analysis of an actual forensic sample.


    Author Information:

    Komuro, J
    Researcher, Senior Researcher, and Chief of Chemical Section, respectively, Scientific Criminal Investigation Laboratory, Kanagawa Prefectural Police Headquarters, Yokohama,

    Watanabe, K
    Researcher, Senior Researcher, and Chief of Chemical Section, respectively, Scientific Criminal Investigation Laboratory, Kanagawa Prefectural Police Headquarters, Yokohama,

    Sakayanagi, M
    Researcher, Senior Researcher, and Chief of Chemical Section, respectively, Scientific Criminal Investigation Laboratory, Kanagawa Prefectural Police Headquarters, Yokohama,

    Harigaya, Y
    Associate Professor and Professor, School of Pharmaceutical Sciences, Kitasato University, Tokyo,

    Konda, Y
    Associate Professor and Professor, School of Pharmaceutical Sciences, Kitasato University, Tokyo,


    Stock #: JFS14588J

    ISSN: 0022-1198

    DOI: 10.1520/JFS14588J

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    Author
    Title Analysis of Ballpoint Pen Inks by Field Desorption Mass Spectrometry
    Symposium , 0000-00-00
    Committee E30