Christian Janfelt

Christian Janfelt

Associate Professor


  1. Published

    Massespektrometri viser fordelingen af lægemiddelstoffer i planter og væv

    Janfelt, Christian, Thunig, J., Li, B., Andersen, N. W., Hansen, Harald S. & Hansen, S. H., Dec 2011, In : Lægemiddelforskning. 2011, p. 10-12

    Research output: Contribution to journalJournal articleCommunication

  2. The magnitude of pseudo-potential errors for density functional calculations

    Janfelt, Christian & Jensen, F., 2005, In : Chemical Physics Letters. 412, p. 501-503 3 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Characterization of a mini membrane inlet mass spectrometer for on-site detection of contaminants in both aqueous and liquid organic samples

    Janfelt, Christian, Frandsen, H. & Lauritsen, F. R., 2006, In : Rapid Communications in Mass Spectrometry. 20, p. 1441–1446 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    Liquid-Phase MicroExtraction coupled to Desorption Electrospray Ionization Mass Spectrometry in pharmaceutical analysis

    Janfelt, Christian, Thunig, U. J. C., Pedersen-Bjergaard, Stig & Hansen, S. H., 2009.

    Research output: Contribution to conferencePosterResearch

  5. The magnitude of pseudo-potential errors for bond distances and vibrational frequencies

    Jensen, F. & Janfelt, Christian, 2005, In : Chemical Physics Letters. 412, p. 12-15 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    DESI-MS imaging of metabolites in various plant materials – a matter of sample preparation

    Kato, L., Rook, F., Møller, Birger Lindberg, Hansen, S. H. & Janfelt, Christian, 2015.

    Research output: Contribution to conferencePosterResearch

  7. Published

    The Spatial Distribution of Alkaloids in Psychotria prunifolia (Kunth) Steyerm and Palicourea coriacea (Cham.) K. Schum Leaves Analysed by Desorption Electrospray Ionisation Mass Spectrometry Imaging

    Kato, L., Moraes, A. P., de Oliveira, C. M. A., Vaz, B. G., de Almeida Gonçalves, L., E Silva, E. C. & Janfelt, Christian, 2018, In : Phytochemical Analysis. 29, p. 69-76

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    Ambient Mass Spectrometry with a Handheld Mass Spectrometer at High Pressure

    Keil, A., Talaty, N., Janfelt, Christian, Noll, R. J., Gao, L., Ouyang, Z. & Cooks, R. G., 2007, In : Analytical Chemistry. 79, p. 7734-7739 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Interspecific variation in localization of hypericins and phloroglucinols in the genus Hypericum as revealed by desorption electrospray ionization mass spectrometry imaging

    Kucharíková, A., Kimáková, K., Janfelt, Christian & Cellárová, E., 2016, In : Physiologia Plantarum. 157, 1, p. 2-12 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Natural products in Glycyrrhiza glabra (licorice) rhizome imaged at the cellular level by atmospheric pressure matrix-assisted laser desorption/ionization tandem mass spectrometry imaging

    Li, B., Bhandari, D. R., Janfelt, Christian, Römpp, A. & Spengler, B., Oct 2014, In : Plant Journal. 80, 1, p. 161-71 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Direct and indirect imaging of secondary metabolites and enzymatic reactions in plant material by Desorption Electrospray Ionization

    Li, B., Bjarnholt, Nanna, Knudsen, C., D'Alvise, J., Hansen, S. H. & Janfelt, Christian, 2012.

    Research output: Contribution to conferencePosterResearchpeer-review

  12. Published

    Visualizing metabolite distribution and enzymatic conversion in plant tissues by desorption electrospray ionization mass spectrometry imaging

    Li, B., Baden, C. K., Hansen, N. K. K., Jørgensen, Kirsten, Kannangara, R. M., Bak, Søren, Takos, A. M., Rook, F., Hansen, S. H., Møller, Birger Lindberg, Janfelt, Christian & Bjarnholt, Nanna, 2013, In : Plant Journal. 74, 6, p. 1059-1071 74.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Characterization of barley leaf tissue using direct and indirect desorption electrospray ionization imaging mass spectrometry

    Li, B., Bjarnholt, Nanna, Hansen, S. H. & Janfelt, Christian, 2011, In : Journal of Mass Spectrometry. 46, 12, p. 1241-1246

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Direct imaging of plant metabolites in leaves and petals by Desorption Electrospray Ionization mass spectrometry

    Li, B., Hansen, S. H. & Janfelt, Christian, 2013, In : International Journal of Mass Spectrometry. 348, p. 15-22

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Permeability Barriers for Nicotine and Mannitol in Porcine Buccal. Mucosa Studied by High-Resolution MALDI Mass Spectrometry Imaging

    Marxen, E., Jacobsen, Jette, Hyrup, B. & Janfelt, Christian, Feb 2018, In : Molecular Pharmaceutics. 15, 2, p. 519-526

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Effect of Permeation Enhancers on the Buccal Permeability of Nicotine: Ex vivo Transport Studies Complemented by MALDI MS Imaging

    Marxen, E., Jin, L., Jacobsen, Jette, Janfelt, Christian, Hyrup, B. & Nicolazzo, J. A., 21 Feb 2018, In : Pharmaceutical Research. 35, 3, 12 p., 70.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Azone® decreases the buccal mucosal permeation of Diazepam in a concentration-dependent manner via a reservoir effect

    Meng-Lund, E., Jacobsen, Jette, Jin, L., Janfelt, Christian, Holm, R., Mullertz, Anette & Nicolazzo, J. A., 15 Feb 2014, In : Journal of Pharmaceutical Sciences. 103, 4, p. 1133-1141 103.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Delivery of amitriptyline by intravenous and intraperitoneal administration compared in the same animal by whole-body mass spectrometry imaging of a stable isotope labelled drug substance in mice

    Morineau, L., Jacobsen, S. C., Kleberg, K., Hansen, Harald S. & Janfelt, Christian, 2 Dec 2018, In : Expert Opinion on Drug Delivery. 15, 12, p. 1157-1163

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    Characterisation and localisation of the endocannabinoid system components in the adult human testis

    Nielsen, J. E., Rolland, A. D., Rajpert-De Meyts, E., Janfelt, Christian, Jørgensen, A., Winge, S. B., Kristensen, D. M., Juul, Anders, Chalmel, F., Jégou, B. & Skakkebæk, Niels Erik, 2019, In : Scientific Reports. 9, 1, 14 p., 12866.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    Mass spectrometry imaging of biomarker lipids for phagocytosis and signalling during focal cerebral ischaemia

    Nielsen, M. M. B., Lambertsen, K. L., Clausen, B. H., Meyer, M., Bhandari, D. R., Larsen, S. T., Poulsen, Steen Seier, Spengler, B., Janfelt, Christian & Hansen, Harald S., 22 Dec 2016, In : Scientific Reports. 6, p. 1-14 14 p., 39571.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. Published

    Nebulization ionization and desorption ionization analysis of reactive organofunctionalized silanes in nanofilm products

    Nørgaard, A. W., Janfelt, Christian, Benassi, M., Wolkoff, P. & Lauritsen, F. R., 2011, In : Journal of Mass Spectrometry. 46, 4, p. 402-410

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. Published

    Release of VOCs and particles during use of nanofilm spray products

    Nørgaard, A. W., Jensen, K. A., Janfelt, Christian, Lauritsen, F. R., Clausen, P. A. & Wolkoff, P., 2009, In : Environmental Science and Technology. 43, 20, p. 7824-7830 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    On-line monitoring of VOC emissions from nanofilm coating products using a handheld membrane inlet mass spectrometer

    Nørgaard, A. W., Janfelt, Christian, Wolkoff, P., Jensen, K. A. & Lauritsen, F. R., 2008.

    Research output: Contribution to conferencePosterResearch

  24. Published

    Cryo-sectioning of mice for whole-body imaging of drugs and metabolites with desorption electrospray ionization mass spectrometry imaging - a simplified approach

    Okutan, S., Hansen, Harald S. & Janfelt, Christian, Jun 2016, In : Proteomics. 16, 11-12, p. 1633-41 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    Characterization of midazolam metabolism in locusts: The role of CYP3A4-like enzyme in the formation of 1'-OH and 4-OH midazolam

    Olsen, L. R., Gabel-Jensen, C., Wubshet, S. G., Kongstad, Kenneth Thermann, Janfelt, Christian, Badolo, L. & Hansen, S. H., 2016, In : Xenobiotica. 46, 2, p. 99–107 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

ID: 8407