Simulation of flux during electro-membrane extraction based on the Nernst–Planck equation

Liquid−Liquid−Liquid Microextraction for Sample Preparation of Biological Fluids Prior to Capillary Electrophoresis

Stig Pedersen‐Bjergaard, Knut Rasmussen · Analytical Chemistry · 1999 · 1.2K citations

Pharmacy, Pharmaceutical Analysis, Toxicology +16

Electrokinetic migration across artificial liquid membranes

Stig Pedersen‐Bjergaard, Knut Rasmussen · Journal of Chromatography A · 2006 · 671 citations

Engineering, Chemical Engineering, Chemistry +14

Developments in hollow fibre-based, liquid-phase microextraction

Knut Rasmussen, Stig Pedersen‐Bjergaard · TrAC Trends in Analytical Chemistry · 2004 · 519 citations

Engineering, Materials Engineering, Materials Science +11

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

Knut Rasmussen, Stig Pedersen‐Bjergaard, Mette Krogh et al. · Journal of Chromatography A · 2000 · 298 citations

Pharmacy, Pharmaceutical Analysis, Pharmaceutics +14

Aqueous/aqueous extraction by means of a liquid membrane for sample cleanup and preconcentration of amines in a flow system

Analytical Chemistry · 1986 · 269 citations

Pharmacy, Chemical Engineering, Analytical Chemistry +9