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Determination of deposition order of blue ballpoint pen lines by MeV Secondary Ion Mass Spectrometry


Malloy, Mason C.; Bogdanović Radović, Ivančica; Siketić, Zdravko; Jakšić, Milko
Determination of deposition order of blue ballpoint pen lines by MeV Secondary Ion Mass Spectrometry // Forensic Chemistry, 7 (2017), 75-80 doi:10.1016/j.forc.2017.10.004 (međunarodna recenzija, članak, znanstveni)


Naslov
Determination of deposition order of blue ballpoint pen lines by MeV Secondary Ion Mass Spectrometry

Autori
Malloy, Mason C. ; Bogdanović Radović, Ivančica ; Siketić, Zdravko ; Jakšić, Milko

Izvornik
Forensic Chemistry (2468-1709) 7 (2017); 75-80

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
MeV-SIMS, forensic document examination, intersecting ink lines, heavy ion microprobe, molecular imaging

Sažetak
Secondary Ion Mass Spectrometry using MeV ion excitation was utilised for the analysis of optically indistinguishable intersecting ballpoint pen lines on paper. It was demonstrated that the technique was able to identify different colorants (dyes and synthetic organic pigments) with high efficiency and in a single measurement. The analysis of ink-ink intersections was performed using the Time-of-Flight mass spectrometer for MeV Secondary Ion Mass Spectrometry. This technique is attached to the heavy ion microprobe at the accelerator facility, and employs focused 8 MeV Si4+ ions for the surface analysis. Molecular imaging allowed for successful identification of sequence deposition order of otherwise optically indistinguishable intersecting lines.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Ustanove
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Web of Science Core Collection (WoSCC)
    • Emerging Sources Citation Index (ESCI)
  • Scopus


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