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- JournalSummary: Includes estimates of cancer incidence and survival rates based on reports from the National Cancer Institute's Surveillance, Epidemiology and End Results (SEER) Program. Cancer mortality statistics are derived from Division of Vital Statistics death data.Digital Access <2007>-Print AccessLocationVersionCall NumberItemsRetired Reference (Downstairs)RC261.A1 A5226
- ArticleSmith RN, Vaughan CG.J Pharm Pharmacol. 1977 May;29(5):286-90.High-pressure liquid chromatography was used to study (a) the relative efficiencies of methanol, chloroform, light petroleum (B.P. 40-60 degrees) and methanol-chloroform (9:1) for extracting neutral and acidic cannabinoids from cannabis resin; (b) the decomposition patterns of the resulting solutions under various storage conditions, and (c) the cannabinoid profile of a cross section through a block of cannabis resin. The results show that (a) methanol is the most effective extracting solvent of those tested; (b) acidic cannabinoids in solution decompose in darkness by varying amounts depending on the temperature, solvent, storage time and particular cannabinoid; (c) neutral cannabinoids in solution are relatively stable in darkness; (d) daylight causes appreciable decomposition of both acidic and neutral cannabinoids in solution, (e) the cannabinoid profile of a resin is complex with lower levels of acidic material in the outer layers.