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An Evaluation of Ballpoint Ink Dating Techniques
LUO Yi-wen;XU Che;YANG Xu (Institute of Forensic Science;Shanghai 000;China
2007(4):
33-36.
Over the past several decades, Dating of writing ink entries is an important and controversial issue in forensic document examination. In the paper, techniques for dating of ballpoint inks, such as ink library, ink tagging, solvent extraction, thin layer chromatography, gas chromatography, liquid chromatography, mass spectrometry, microspectrophotometry, infrared spectrometry and Raman spectrometry, were introduced and evaluated.
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