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Forensic Science - Extortion - Analysis of writing materials - chromatogram

  • Date:2012.07.18

Forensic Science - Extortion - Analysis of writing materials - chromatogram

The chromatogram displays differences in the isolated mixtures of colouring materials used in different ballpoint pen inks. The chromatogram displays differences in the isolated mixtures of colouring materials used in different ballpoint pen inks. Source: BKA

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