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TLC (Thin-Layer Chromatography)

A planar chromatography technique on silica gel plates that separates ink dye mixtures by polarity. ASTM E2285 governs its forensic application. The Rf values and band colours under visible and UV light constitute the ink's chromatographic fingerprint.

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Related terms

ASTM E2285 / E2286Ballpoint inkHPLC-DADIron-gall inkPhenoxyethanolRaman microspectroscopyTonerUSSS International Ink LibraryVSC (Video Spectral Comparator)

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