Publications by authors named "Karsten Levsen"

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Even-electron ions: a systematic study of the neutral species lost in the dissociation of quasi-molecular ions.
Karsten Levsen, Hans-Martin Schiebel, Johan K Terlouw, Karl J Jobst, Manfred Elend

J Mass Spectrom· August 2007

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Metabolism of verapamil in cultures of rat alveolar epithelial cells and pharmacokinetics after administration by intravenous and inhalation routes.
Jürgen Borlak, Maren Blickwede, Tanja Hansen, Wolfgang Koch, Markus Walles, Karsten Levsen

Drug Metab Dispos· August 2005

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Pyrethroids used indoor-ambient monitoring of pyrethroids following a pest control operation.
Gabriele Leng, Edith Berger-Preiss, Karsten Levsen, Ulrich Ranft, Dorothee Sugiri

Int J Hyg Environ Health· August 2005

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Structure elucidation of phase II metabolites by tandem mass spectrometry: an overview.
Karsten Levsen, Hans-Martin Schiebel, Beate Behnke, Reinhard Dötzer, Wolfgang Dreher

J Chromatogr A· March 2005

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Multidimensional on-line sample preparation of verapamil and its metabolites by a molecularly imprinted polymer coupled to liquid chromatography-mass spectrometry.
Wayne M Mullett, Markus Walles, Karsten Levsen, Jürgen Borlak, Janusz Pawliszyn

J Chromatogr B Analyt Technol Biomed Life Sci· March 2004

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Verapamil: metabolism in cultures of primary human coronary arterial endothelial cells.
Jurgen Borlak, Markus Walles, Karsten Levsen, Thomas Thum

Drug Metab Dispos· July 2003

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Application of restricted access material (RAM) with precolumn-switching and matrix solid-phase dispersion (MSPD) to the study of the metabolism and pharmacokinetics of Verapamil.
Markus Walles, Jürgen Borlak, Karsten Levsen

Anal Bioanal Chem· December 2002

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Indoor pyrethroid exposure in homes with woollen textile floor coverings.
Edith Berger-Preiss, Karsten Levsen, Gabriele Leng, Helga Idel, Dorothee Sugiri

Int J Hyg Environ Health· October 2002

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Verapamil: new insight into the molecular mechanism of drug oxidation in the human heart.
Markus Walles, Thomas Thum, Karsten Levsen, Jürgen Borlak

J Chromatogr A· September 2002

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Bio-compatible in-tube solid-phase microextraction capillary for the direct extraction and high-performance liquid chromatographic determination of drugs in human serum.
Wayne M Mullett, Karsten Levsen, Dieter Lubda, Janusz Pawliszy

J Chromatogr A· July 2002

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Automated in-tube solid-phase microextraction coupled with HPLC for the determination of N-nitrosamines in cell cultures.
Wayne M Mullett, Karsten Levsen, Jurgen Borlak, Jingcun Wu, Janusz Pawliszyn

Anal Chem· April 2002

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