Search Results - "Seip, Knut Fredrik"

Proteomics tools reveal startlingly high amounts of oxytocin in plasma and serum by Brandtzaeg, Ole Kristian, Johnsen, Elin, Roberg-Larsen, Hanne, Seip, Knut Fredrik, MacLean, Evan L., Gesquiere, Laurence R., Leknes, Siri, Lundanes, Elsa, Wilson, Steven Ray

“…The neuropeptide oxytocin (OT) is associated with a plethora of social behaviors and is a key topic at the intersection of psychology and biology. However,…”
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Electromembrane extraction of peptides – Fundamental studies on the supported liquid membrane by Seip, Knut Fredrik, Stigsson, Jeanette, Gjelstad, Astrid, Balchen, Marte, Pedersen‐Bjergaard, Stig

“…A large screening of different components in the supported liquid membrane (SLM) in electromembrane extraction (EME) was performed to test the extraction…”
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Sample extraction techniques for biological samples: recent advances and novel applications by Gjelstad, Astrid, Seip, Knut Fredrik

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Electromembrane extraction of polar basic drugs from plasma with pure bis(2-ethylhexyl) phosphite as supported liquid membrane by Huang, Chuixiu, Seip, Knut Fredrik, Gjelstad, Astrid, Pedersen-Bjergaard, Stig

“…Electromembrane extraction (EME) of polar basic drugs from human plasma was investigated for the first time using pure bis(2-ethylhexyl) phosphite (DEHPi) as…”
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Combination of Electromembrane Extraction and Liquid-Phase Microextraction in a Single Step: Simultaneous Group Separation of Acidic and Basic Drugs by Huang, Chuixiu, Seip, Knut Fredrik, Gjelstad, Astrid, Shen, Xiantao, Pedersen-Bjergaard, Stig

“…Electromembrane extraction (EME) and liquid-phase microextraction (LPME) were combined in a single step for the first time to realize simultaneous and clear…”
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Exhaustive and stable electromembrane extraction of acidic drugs from human plasma by Huang, Chuixiu, Gjelstad, Astrid, Seip, Knut Fredrik, Jensen, Henrik, Pedersen-Bjergaard, Stig

“…•Alcohols were found to be the most efficient SLM for EME of acidic drugs.•1-Heptanol was the most successful SLM.•Hydrogen bonding acidity was a crucial…”
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Micro-electromembrane extraction using multiple free liquid membranes and acceptor solutions – Towards selective extractions of analytes based on their acid-base strength by Kubáň, Pavel, Seip, Knut Fredrik, Gjelstad, Astrid, Pedersen-Bjergaard, Stig

“…This work investigated selective micro-electromembrane extractions (μ-EMEs) of the colored indicators metanil yellow and congo red (visual proof-of-principle)…”
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Semi-automated set-up for exhaustive micro-electromembrane extractions of basic drugs from biological fluids by Dvořák, Miloš, Seip, Knut Fredrik, Pedersen-Bjergaard, Stig, Kubáň, Pavel

“…Manual handling of microliter volumes of samples and reagents is usually prone to errors and may have direct consequence on the overall performance of…”
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Electromembrane extraction from aqueous samples containing polar organic solvents by Seip, Knut Fredrik, Gjelstad, Astrid, Pedersen-Bjergaard, Stig

“…•EME can be performed from 50% methanol, ethanol, or dimethyl sulfoxide.•EME from samples containing acetonitrile should be avoided.•The extraction time has to…”
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Electromembrane extraction for pharmaceutical and biomedical analysis – Quo vadis by Huang, Chuixiu, Seip, Knut Fredrik, Gjelstad, Astrid, Pedersen-Bjergaard, Stig

“…•Electromembrane extraction (EME).•Pharmaceutical and biomedical applications.•Recent developments and future directions. Electromembrane extraction (EME) was…”
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Mass transfer in electromembrane extraction-The link between theory and experiments by Huang, Chuixiu, Jensen, Henrik, Seip, Knut Fredrik, Gjelstad, Astrid, Pedersen-Bjergaard, Stig

“…Electromembrane extraction was introduced in 2006 as a totally new sample preparation concept for the extraction of charged analytes present in aqueous…”
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Stability and efficiency of supported liquid membranes in electromembrane extraction—a link to solvent properties by Seip, Knut Fredrik, Faizi, Moheba, Vergel, Cristina, Gjelstad, Astrid, Pedersen-Bjergaard, Stig

“…The current work presents a large systematic screening of 61 possible organic solvents used as supported liquid membranes (SLM) in electromembrane extraction…”
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Salt effects in electromembrane extraction by Seip, Knut Fredrik, Jensen, Henrik, Kieu, Thanh Elisabeth, Gjelstad, Astrid, Pedersen-Bjergaard, Stig

“…•Salt in the sample solution can reduce the recovery for some analytes in electromembrane extraction.•Salt effects have been explained by an ion pairing…”
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Electromembrane extraction: Distribution or electrophoresis? by Seip, Knut Fredrik, Jensen, Henrik, Sønsteby, Marit Hovde, Gjelstad, Astrid, Pedersen-Bjergaard, Stig

“…This paper presents for the first time a phenomenological theoretical model for the time dependent distribution of analytes during electromembrane extraction…”
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The potential of electromembrane extraction for bioanalytical applications by Seip, Knut Fredrik, Gjelstad, Astrid, Pedersen-Bjergaard, Stig

“…Modern requirements in the field of bioanalysis often involve miniaturized, high-throughput sample preparation techniques that consume low amounts of both…”
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Electromembrane extraction as a rapid and selective miniaturized sample preparation technique for biological fluids by Gjelstad, Astrid, Pedersen-Bjergaard, Stig, Seip, Knut Fredrik

“…This special report discusses the sample preparation method electromembrane extraction, which was introduced in 2006 as a rapid and selective miniaturized…”
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Erratum to: Stability and efficiency of supported liquid membranes in electromembrane extraction—a link to solvent properties by Seip, Knut Fredrik, Faizi, Moheba, Vergel, Cristina, Gjelstad, Astrid, Pedersen-Bjergaard, Stig

“…Issue Title: Microextraction Techniques…”
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The potential application of electromembrane extraction for the analysis of peptides in biological fluids by Seip, Knut Fredrik, Gjelstad, Astrid, Pedersen-Bjergaard, Stig

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The role of bradykinin and the effect of the bradykinin receptor antagonist icatibant in porcine sepsis by Barratt-Due, Andreas, Johansen, Harald Thidemann, Sokolov, Andrey, Thorgersen, Ebbe Billmann, Hellerud, Bernt Christian, Reubsaet, Jan Leo, Seip, Knut Fredrik, Tønnessen, Tor Inge, Lindstad, Julie Katrine, Pharo, Anne, Castellheim, Albert, Mollnes, Tom Eirik, Nielsen, Erik Waage

“…Bradykinin (BK) is regarded as an important mediator of edema, shock, and inflammation during sepsis. In this study, we evaluated the contribution of BK in…”
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