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Stig Pedersen-Bjergaard

3 papers in the library · 62 citations · publishing 1997-2017

Papers

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Parallel artificial liquid membrane extraction of new psychoactive substances in plasma and whole blood.

Journal of Chromatography B March 24, 2017 Linda Vårdal, Hilde-Merete Askildsen, Astrid Gjelstad et al. 34 citations

Parallel artificial liquid membrane extraction (PALME) was combined with ultra-high performance liquid chromatography-mass spectrometry (UHPLC-MS) and the potential for screening of new psychoactive substances (NPS) was investigated for the first time. PALME was performed in 96-well format comprising a donor plate, a supported liquid membrane (SLM), and an acceptor plate. Uncharged NPS were...

DOI: 10.1016/j.jchromb.2017.02.010 (opens in new tab) Full text (opens in new tab) Liquid-phase microextraction New psychoactive substances Plasma samples Whole blood samples +10

Strategies for the capillary electrophoretic separation of indole alkaloids in Psilocybe semilanceata.

Electrophoresis January 1998 Stig Pedersen-Bjergaard, K E Rasmussen, Ellen Sannes

While the hallucinogenic mushrooms Psilocybe semilanceata have previously been analyzed for the indole alkaloids psilocybin and baeocystin by capillary zone electrophoresis (CZE) at pH 11.5, the present work focused on the development of an alternative and complementary capillary electrophoretic method for their identification. Owing to their structural similarity and zwitterionic nature, the...

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 capillary zone electrophoretic (CZE) method was developed for the rapid determination of psilocybin in Psilocybe semilanceata. Following a simple two step extraction with 3.0+2.0 ml methanol, the hallucinogenic compound was effectively separated from matrix components by CZE utilizing a 10 mM borate-phosphate running buffer adjusted to pH 11.5. The identity of psilocybin was confirmed by...

DOI: 10.1016/s0378-4347(97)00127-8 (opens in new tab) Psilocybin Capillary electrophoresis Chromatography