Planta Med 1965; 13(3): 291-295
DOI: 10.1055/s-0028-1100123
© Georg Thieme Verlag Stuttgart · New York

A STUDY OF INFRA–RED SPECTRA OF CANNABIS RESIN

Lj. Grlić
Further Information

Publication History

Publication Date:
15 January 2009 (online)

Summary

Various types of cannabis resin exhibit marked and characteristic differences in their infra–red spectra over the region 700–1300 cm–1. The observed absorption characteristics are explained by the differences in the content of cannabidiolic acid, cannabidiol, tetrahydrocannabinols and cannabinol in the samples examined. The absorption curves and particularly the value T890–T1130 offer the possibility to examine the progress of the phytochemical interconversion of cannabinols („ripening” process) as well as to estimate the type and the chemical composition of the resin.

Zusammenfassung

Cannabis–Harze verschiedener Herkunft und verschiedenen „Reifezustandes” zeigen charakteristische Unterschiede in ihren IR–Spektren im Wellenbereich von 700–1300 cm–1. Die Absorptions–Unterschiede werden durch den verschiedenen Gehalt an Gannabidiolsäure, Gannabidiol, Tetrahydrocannabinol und Cannabinol erklärt. Die Absorptionskurven, speziell die Differenz T890–T1130) geben einen Hinweis auf die chemischen Umwandlungen (Reifungsprozeß).

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