S
Stig Pedersen-Bjergaard
Researcher at University of Copenhagen
Publications - 240
Citations - 12806
Stig Pedersen-Bjergaard is an academic researcher from University of Copenhagen. The author has contributed to research in topics: Extraction (chemistry) & Membrane. The author has an hindex of 57, co-authored 227 publications receiving 11283 citations. Previous affiliations of Stig Pedersen-Bjergaard include University of Waterloo & Technical University of Denmark.
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Fundamental studies on selectivity in 3-phase liquid-phase microextraction (LPME) of basic drugs
TL;DR: In this article, an inexpensive and disposable hollow fibre based device for liquid-phase microextraction (LPME) where ionic analytes typically are extracted from 1-4 mL aqueous samples (such as plasma and urine) through an organic solvent immobilized in the pores of a polypropylene hollow fibre and into a 10-25 μL volume of acceptor phase present inside the hollow fibre.
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Separation of neutral compounds by microemulsion electrokinetic chromatography: fundamental studies on selectivity.
TL;DR: The cosurfactant of the microemulsion was found to be the most important factor affecting the selectivity, and alteration between 6.6% of 1‐propanol, 1‐butanol, tetrahydrofuran, and 2‐ethoxyethanol caused several substantial changes in the migration order.
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Microemulsion electrokinetic chromatography in suppressed electroosmotic flow environment. Separation of fat-soluble vitamins.
TL;DR: In this paper, a microemulsion electrokinetic chromatography (MEEKC) was carried out in a pH 2.5 phosphate buffer to effectively suppress the electroosmotic flow (EOF).
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Liquid-phase microextraction in a microfluidic-chip--high enrichment and sample clean-up from small sample volumes based on three-phase extraction.
María Ramos Payán,Henrik Jensen,Nickolaj Jacob Petersen,Steen Honoré Hansen,Stig Pedersen-Bjergaard,Stig Pedersen-Bjergaard +5 more
TL;DR: The LPME-chip was found to be highly effective, and extraction efficiencies were in the range of 52-91%.
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On-column bromine- and chlorine-selected detection for capillary gas chromatography using a radio frequency plasma
TL;DR: In this paper, a 350-kHz rf plasma sustained inside the end of a 0.25- or 0.32-mmi.d fused-silica GC column was evaluated for element-selective detection of brominated and chlorinated compounds separated by gas chromatography.