Analysis of marijuana samples from different origins by high-resolution gas-liquid chromatography for forensic application

Abstract

components in a mixture is contained in the complete spectra and (b) the ability to maximize the sensitivity for all components by obtaining chromatographic data at the optimum wavelengths from a 3-D chromatogram. An implication of the second advantage is that the selection of optical conditions can compensate for poor chromatographic resolution.

Extraction and analysis of different Cannabis samples by headspace solid‐phase microextraction combined with gas chromatography‐mass spectrometry

“…NIST98 and WILEY spectral libraries, as well as literature MS data [2,3] were used for the identification of cannabinoids.…”

“…Such observations are of great importance for legal purposes and for the tentative control of illicit traffic [2]. In the same way, a qualitative analysis is necessary to determine whether seized samples are from a common batch [3] and to study the pharmacological activities of the plant [4].…”

“…Furthermore, by analysing marijuana patterns by GC on glass capillary columns, Novotny et al [3] suggested that a correlation between chromatographic data and geographical origin must be reconsidered. They postulated that the low resolving power of conventional packed columns used by several authors was responsible for a misinterpretation of chromatographic peaks in the cannabinoids region, which could partly explain conflicting results.…”

Analysis of Cannabis Material by Headspace Solid-Phase Microextraction Combined with Gas Chromatography-Mass Spectrometry

“…The mass spectrometer was operated in electron impact (EI) ionisation mode at 70 eV, in the scan range m/z 30-400. For the identification of cannabinoids, the NIST98 and WILEY spectral libraries were used, as well as literature MS data [14][15].…”

“…It should be noted that cannabinoids are characteristic compounds of Cannabis sativa L. Their occurrence and concentration as potential indicators of the geographical origin of the plant [14][15][16] is under discussion. With respect to possible legalization of the use of cannabis and derivatives in Switzerland, the identification of originlinked indicators can be of great significance.…”