A comparison of the use of visible microspectrometry and high performance thin layer chromatography for the discrimination of aqueous inks used in porous tip and roller ball pens |
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| Authors: | R.N. Totty M.R. Ordidge L.J. Onion |
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| Affiliation: | Home Office Forensic Science Laboratory, Priory House, Gooch Street North, Birmingham B5 6QQ U.K. |
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| Abstract: | Ink lines made by porous tip and roller ball pens have been examined by high performance thin layer chromatography (HPTLC) and by transmission microspectrophotometry (VM) in the visible region. Better discrimination between apparently similar coloured inks was obtained with HPTLC but VM has value as an additional technique for ink examination. |
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| Keywords: | High performance thin layer chromatography Visible microspectrophotometry Aqueous inks Discrimination |
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