Christian Janfelt

Christian Janfelt

Associate Professor


  1. 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

  2. Published

    Ambient mass spectrometry imaging: a comparison of desorption ionization by sonic spray and electrospray

    Janfelt, Christian & Nørgaard, A. W., Oct 2012, In : Journal of The American Society for Mass Spectrometry. 23, 10, p. 1670-8 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Analysis of secondary plant metabolites by indirect desorption electrospray ionization imaging mas spectrometry

    Thunig, U. J. C., Hansen, S. H. & Janfelt, Christian, 2011, In : Analytical Chemistry. 83, p. 3256-3259

    Research output: Contribution to journalLetterResearchpeer-review

  4. Published

    Aspects of Quantitation in Mass Spectrometry Imaging Investigated on Cryo-Sections of Spiked Tissue Homogenates

    Hansen, H. T. & Janfelt, Christian, 2016, In : Analytical Chemistry. 88, 23, p. 11513−11520 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. 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

  6. Published

    Billeddannende massespektrometri

    Janfelt, Christian, D'Alvise, J., Li, B. & Hansen, S. H., 2012, In : Dansk Kemi. 93, 6/7, p. 12-14 3 p.

    Research output: Contribution to journalJournal articleCommunication

  7. Published

    Billeddannende massespektrometri til analyse af vævsprøver

    Janfelt, Christian, Wellner, N., D'Alvise, J. & Hansen, S. H., 2012, In : Dansk Kemi. 93, 8, p. 20-23

    Research output: Contribution to journalJournal articleResearch

  8. Published

    Buccal delivery of small molecules - Impact of levulinic acid, oleic acid, sodium dodecyl sulfate and hypotonicity on ex vivo permeability and spatial distribution in mucosa

    Hansen, S. E., Marxen, E., Janfelt, Christian & Jacobsen, Jette, Dec 2018, In : European Journal of Pharmaceutics and Biopharmaceutics. 133, p. 250-257

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. 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

  10. Published

    Characterization and optimization of membrane inlets for a miniature ion trap mass spectrometer operating at a high background pressure of humid air

    Janfelt, Christian, Graesboll, R. & Lauritsen, F. R., 2008, In : International Journal of Mass Spectrometry. 276, p. 17-23 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Characterization of a capillary spray cell for easy analysis of extracts of biological samples

    Janfelt, Christian & Lauritsen, F. R., 2011, In : International Journal of Mass Spectrometry. 299, p. 178-183

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. 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

  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

    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

  15. Published

    Combination of MALDI-MSI and cassette dosing for evaluation of drug distribution in human skin explant

    Sørensen, I. S., Janfelt, Christian, Nielsen, M. M. B., Mortensen, R. W., Knudsen, N. Ø., Eriksson, A. H., Pedersen, A. J. & Nielsen, K. T., Aug 2017, In : Analytical and Bioanalytical Chemistry. 409, 21, p. 4993-5005 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. 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

  17. 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

  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

    Detection of follicular transport of lidocaine and metabolism in adipose tissue in pig ear skin by DESI mass spectrometry imaging

    D'Alvise, J., Mortensen, R., Hansen, S. H. & Janfelt, Christian, Jun 2014, In : Analytical and Bioanalytical Chemistry. 406, 15, p. 3735-42 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    Developing a predictive in vitro dissolution model based on gastrointestinal fluid characterisation in rats

    Christfort, J. F., Strindberg, Sophie , Plum, J., Hall-Andersen, J., Janfelt, Christian, Nielsen, L. H. & Mullertz, Anette , 2019, In : European Journal of Pharmaceutics and Biopharmaceutics. 142, p. 307-314 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. 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

  22. 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

  23. Published

    Direkte analyse med DESI-MS

    Thunig, J., Lauritsen, F. R., Hansen, S. H., Janfelt, Christian & Christophersen, C., 2010, In : Dansk Kemi. 91, 3, p. 21-23 3 p.

    Research output: Contribution to journalJournal articleResearch

  24. Published

    Displaced dual-mode imaging with desorption electrospray ionization for simultaneous mass spectrometry imaging in both polarities and with several scan modes

    Janfelt, Christian, Wellner, N., Hansen, Harald S. & Hansen, S. H., Mar 2013, In : Journal of Mass Spectrometry. 48, 3, p. 361-6 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    Distribution of terfenadine and its metabolites in locusts studied by desorption electrospray ionization mass spectrometry imaging

    Olsen, L. R., Hansen, S. H. & Janfelt, Christian, 2015, In : Analytical and Bioanalytical Chemistry. 407, 8, p. 2149–2158 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

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