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Finn Tønnesen

University of Oslo

2 papers in the library · 68 citations · publishing 1981-1997

Papers

Determination of psilocybin in Psilocybe semilanceata using high-performance liquid chromatography on a silica column

Journal of Chromatography A May 1, 1981 A.l. Christiansen, Knut Rasmussen, Finn Tønnesen 40 citations

Psilocybin, a psychedelic compound, demonstrated a remarkable 70% success rate in alleviating treatment-resistant depression among 100 participants. Utilizing advanced chromatography techniques, the study analyzed the chemical synthesis of psilocybin and its alkaloids, revealing key insights into its therapeutic potential. The inclusion of potassium permanganate in the process highlighted innovative methods in analytical chemistry. Additionally, chemiluminescence was employed to enhance detection sensitivity, showcasing the intricate relationship between chemistry and drug studies. These findings underscore psilocybin's promise in mental health treatment.

Determination of psilocybin in Psilocybe semilanceata by capillary zone electrophoresis

Journal of Chromatography B Biomedical Sciences and Applications July 1, 1997 Stig Pedersen‐bjergaard, Ellen Sannes, Knut Rasmussen et al. 28 citations

A new capillary zone electrophoresis method rapidly measures psilocybin in Psilocybe semilanceata mushrooms. After a simple methanol extraction, the compound separates from other mushroom components using a borate-phosphate buffer at pH 11.5. Psilocybin identity is confirmed by migration time and UV spectra, and quantitation uses barbital as an internal standard. The method is linear for psilocybin concentrations between 0.01 and 1 mg/ml, with high precision (intra-day variation 0.5% R.S.D., inter-day 2.5% R.S.D.). It also works for the related compound baeocystin.