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Title: Determining Intersecting Ball-Point Ink Strokes with Different Aging
Authors: Querol Sabater, Paula
Díaz Santana, Oscar
Vega Moreno, Daura 
UNESCO Clasification: 2301 química analítica
Keywords: Dating
Intersecting Strokes, et al
Issue Date: 2021
Journal: Journal of Analytical Chemistry 
Abstract: The order of laying down homogeneous intersecting strokes of ball-point inks has been assessed using a range of different spectroscopic and analytical techniques for recent inks and for inks with a time difference of 4 years. These techniques are infrared reflectance photography with luminescence, fluorescence micro-spectrophotometry, Fourier transform infrared spectrometry, high resolution liquid chromatography and gas chromatography with mass spectrometry. This paper presents a combined method applicable to forensic cases aimed at resolving homogenous intersecting strokes of ball-point ink to determine whether they were made at the same time or, on the contrary, they were intersecting strokes laid down with an acute time difference, taking four years as an age reference.
ISSN: 1061-9348
DOI: 10.1134/S1061934821050166
Source: Journal of Analytical Chemistry [ISSN 1061-9348], v. 76 (5), p. 660-670, (Mayo 2021)
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