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Thin Layer Chromatography (TLC)
Fourier Transform Infrared Spectroscopy
Federal Forensic Associates, Inc.
Examination of Ball Pen Ink by High Pressure Liquid Chromatography
By Albert Lyter.
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From page 1.
High pressure liquid chromatography (HPLC) was used to analyze several samples of ball pen ink. Analytical parameters were developed to analyze the various constituents of ball pen ink, both qualitatively and quantitatively. Different ball pen ink formulations were examined, as were batch samples of a single formulation.
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