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Knut Einar Rasmussen

Observed names: K E Rasmussen, K. E. RASMUSSEN, K. Einar Rasmussen, K. Rasmussen, K.E. Rasmussen, Knut E Rasmussen, Knut E. Rasmussen, Knut Rasmussen, Rasmussen, Knut Einar
Institution: University of Oslo
OpenAlex ID: A5076742256
Liquid−Liquid−Liquid Microextraction for Sample Preparation of Biological Fluids Prior to Capillary Electrophoresis
1999 · Stig Pedersen-Bjergaard, Knut Einar Rasmussen · Analytical Chemistry · 1,246
Electrokinetic migration across artificial liquid membranes
2006 · Stig Pedersen-Bjergaard, Knut Einar Rasmussen · Journal of Chromatography A · 684
Developments in hollow fibre-based, liquid-phase microextraction
2004 · Knut Einar Rasmussen, Stig Pedersen-Bjergaard · TrAC Trends in Analytical Chemistry · 523
Liquid-phase microextraction with porous hollow fibers, a miniaturized and highly flexible format for liquid–liquid extraction
2007 · Stig Pedersen-Bjergaard, Knut Einar Rasmussen · Journal of Chromatography A · 493
Environmental and bioanalytical applications of hollow fiber membrane liquid-phase microextraction: A review
2008 · Jingyi Lee, Hian Kee Lee, et al. · Analytica Chimica Acta · 400
Development of a simple in-vial liquid-phase microextraction device for drug analysis compatible with capillary gas chromatography, capillary electrophoresis and high-performance liquid chromatography
2000 · Knut Einar Rasmussen, Stig Pedersen-Bjergaard, et al. · Journal of Chromatography A · 301
Simulation of flux during electro-membrane extraction based on the Nernst–Planck equation
2007 · Astrid Gjelstad, Knut Einar Rasmussen, et al. · Journal of Chromatography A · 247
Electrokinetic migration of acidic drugs across a supported liquid membrane
2006 · Marte Balchen, Astrid Gjelstad, et al. · Journal of Chromatography A · 236
Electrokinetic migration across artificial liquid membranes
2006 · Astrid Gjelstad, Knut Einar Rasmussen, et al. · Journal of Chromatography A · 233
Microextraction across supported liquid membranes forced by pH gradients and electrical fields
2007 · Astrid Gjelstad, Torill Marita Andersen, et al. · Journal of Chromatography A · 178
Low-voltage electromembrane extraction of basic drugs from biological samples
2008 · Inger Johanne Østegaard Kjelsen, Astrid Gjelstad, et al. · Journal of Chromatography A · 175
Recovery, enrichment and selectivity in liquid-phase microextraction
2002 · Tung Si Ho, Stig Pedersen-Bjergaard, et al. · Journal of Chromatography A · 167
Parameters affecting electro membrane extraction of basic drugs
2008 · Torunn M. Middelthon‐Bruer, Astrid Gjelstad, et al. · Journal of Separation Science · 157
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Liquid-phase microextraction and capillary electrophoresis of acidic drugs
2000 · Stig Pedersen-Bjergaard, Knut Einar Rasmussen · Electrophoresis · 156
Electromembrane extraction of basic drugs from untreated human plasma and whole blood under physiological pH conditions
2008 · Astrid Gjelstad, Knut Einar Rasmussen, et al. · Analytical and Bioanalytical Chemistry · 141
Liquid–liquid extraction procedures for sample enrichment in capillary zone electrophoresis
2000 · Stig Pedersen-Bjergaard, Knut Einar Rasmussen, et al. · Journal of Chromatography A · 131
Liquid-phase microextraction as a sample preparation technique prior to capillary gas chromatographic-determination of benzodiazepines in biological matrices
2000 · Hege Grefslie Ugland, Mette Krogh, et al. · Journal of Chromatography B Biomedical Sciences and Applications · 131
Simultaneous extraction of acidic and basic drugs at neutral sample pH: A novel electro-mediated microextraction approach
2010 · Chanbasha Basheer, Jingyi Lee, et al. · Journal of Chromatography A · 124
Liquid-phase microextraction of hydrophilic drugs by carrier-mediated transport
2003 · Tung Si Ho, Trine Grønhaug Halvorsen, et al. · Journal of Chromatography A · 120
Kinetic electro membrane extraction under stagnant conditions—Fast isolation of drugs from untreated human plasma
2010 · Lars Erik Eng Eibak, Astrid Gjelstad, et al. · Journal of Chromatography A · 99
Liquid-phase microextraction combined with capillary electrophoresis, a promising tool for the determination of chiral drugs in biological matrices
2002 · Solveig Andersen, Trine Grønhaug Halvorsen, et al. · Journal of Chromatography A · 96
Kinetic aspects of hollow fiber liquid-phase microextraction and electromembrane extraction
2011 · Astrid Gjelstad, Henrik Jensen, et al. · Analytica Chimica Acta · 93
Feasibility of a liquid‐phase microextraction sample clean‐up and liquid chromatographic/mass spectrometric screening method for selected anabolic steroid glucuronides in biological samples
2003 · Tiia Kuuranne, Tapio Kotiaho, et al. · Journal of Mass Spectrometry · 92
Liquid-phase microextraction based on carrier mediated transport combined with liquid chromatography–mass spectrometry
2004 · Tung Si Ho, Jan Leon Egge Reubsaet, et al. · Journal of Chromatography A · 90
Stereospecific determination of citalopram and desmethylcitalopram by capillary electrophoresis and liquid-phase microextraction
2003 · Solveig Andersen, Trine Grønhaug Halvorsen, et al. · Journal of Pharmaceutical and Biomedical Analysis · 90
Works count: 116
Citation count: 9,231
H-index: 51
I10-index: 88
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