Autor: |
Causin V; Dipartimento di Scienze Chimiche dell'Università, via Marzolo 1, 35131 Padova, Italy. valerio.causin@unipd.it, Casamassima R, Marega C, Maida P, Schiavone S, Marigo A, Villari A |
Jazyk: |
angličtina |
Zdroj: |
Journal of forensic sciences [J Forensic Sci] 2008 Nov; Vol. 53 (6), pp. 1468-73. Date of Electronic Publication: 2008 Aug 25. |
DOI: |
10.1111/j.1556-4029.2008.00867.x |
Abstrakt: |
The knowledge of the discriminating power of analytical techniques used for the differentiation of writing inks can be useful when interpreting results. Ultraviolet-visible (UV-VIS) spectrophotometry, thin layer chromatography (TLC), and diffuse reflectance Fourier transform infrared spectroscopy (FT-IR) were used to examine a population of 21 black and 12 blue ballpoint writing inks. Based on corroborative results of these methods, the discrimination power for UV-VIS, TLC, and FT-IR was determined to be 100% and 98% for the black and blue inks, respectively. Generally, TLC and UV-VIS can be used to differentiate the colorant components (i.e., dyes and some pigments) found in inks. As FT-IR can be utilized to identify some of the noncolorant components, it was determined to be an excellent complementary technique that can be implemented into an analytical scheme for ink analysis. |
Databáze: |
MEDLINE |
Externí odkaz: |
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