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GC/MS: suitable
solid phase microextraction (SPME): suitable
測試參數
sample/matrix: 0.5 g dried cannabis in 10 mL headspace vial
SPME fiber: Divinylbenzene/Carboxen/Polydimethylsiloxane (DVB/CAR/PDMS), 50/30 μm (57298-U)
extraction: 20 min, headspace, 40 °C
desorption process: 3 min, 270 °C
sample preparation: 30 min equilibration at 40 °C prior to extraction
sample preparation: fiber postbake after extraction, 3 min at 270 °C
column: Equity-1, 60 m x 0.25 mm I.D., 0.25 μm (28047-U)
oven: 60 °C (2 min), 5 °C/min to 275 °C (5 min)
inj. temp.: 270 °C
detector: MSD
MSD interface: 300 °C
carrier gas: helium, 1 mL/min constant flow
liner: 0.75 mm ID, SPME
應用
food and beverages
vitamins, nutraceuticals, and natural products
分析報告
Terpenes are contained in the essential oils derived from plants, and often impart characteristic aromas to the plant and/or oil. Cannabis sativa (cannabis) contains more than 100 different terpenes and terpenoids, including mono, sesqui, di and tri, as well as other misc. compounds of terpenoid orgin. Terpene profile does not necessarily indicate geographic orgin of a cannabis sample, however it can be used in forensic applications to determine the common source of different samples. In addition, different cannabis strains have been developed which have distinct aromas and flavors, a result of the differing amounts of specific terpenes present. In this application, headspace-SPME combined with GC/MS was used to analyze some of the terpenes present in dried cannabis. Sample was obtained courtesy of Dr. Hari H. Singh, Program Director at the Chemistry & Physiological Systems Research Branch of the National Institute on Drug Abuse at the National Institute of Health. The exact strain of the sample was not known. Chromatographic separation was performed on an Equity-1 capillary GC column, and identification was done using retention indices and spectral library match.
法律資訊
分析物
说明
Hexanal
Hexene-1-ol
2-Heptanone
a-Thujene
a-Pinene + unknown
Camphene
6-Methyl-5-hepten-2-one
ß-Pinene
ß-Myrcene
Δ-3-Carene
a-Terpinene
Cymene
d-Limonene
γ-Terpinene
trans-Sabinene hydrate
cis-Linalool oxide
Linalool
d-Fenchyl alcohol
trans-Pinocarveol
Borneol L
1,8-Methandien-4-ol
p-Cymen-8-ol
Terpinene-4-ol
a-Terpineol
Piperitenone
Piperitenone oxide
a-Ylangene
a-Copaene
γ-Caryophyllene
a-Santalene
Caryophyllene
trans-a-Bergamotene + unknown
a-Guaiene
trans-ß-Farnesene
Humulene
Alloaromadendrene
a-Curcumene
ß-Selinene
a-Selinene
ß-Bisobolene
a-Bulnesene
Selina-3,7(11)-diene
Caryophyllene oxide
Humulene oxide
Caryophylla-3,8(13)-dien-5-ol A
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