Nickolaj J. Petersen

Nickolaj J. Petersen

Associate Professor


  1. 2022
  2. Published

    Electromembrane extraction in microfluidic formats

    Hansen, F. A., Petersen, Nickolaj J., Kutter, Jörg P. & Pedersen-Bjergaard, Stig, 2022, In: Journal of Separation Science. 45, 1, p. 246-257

    Research output: Contribution to journalReviewResearchpeer-review

  3. 2021
  4. Published

    Non-aqueous electrophoresis integrated with electrospray ionization mass spectrometry on a thiol-ene polymer-based microchip device

    Lu, N., Petersen, Nickolaj J., Kretschmann, A. C. & Kutter, Jörg P., 2021, In: Analytical and Bioanalytical Chemistry. 413, p. 4195–4205

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. 2020
  6. Published

    Development of a novel sheathless CE-ESI-MS interface via a CO2 laser ablated opening

    Vermeire, P., Van Schepdael, A. & Petersen, Nickolaj J., 1 Jul 2020, In: Talanta. 214, 8 p., 120853.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    A thiol-ene microfluidic device enabling continuous enzymatic digestion and electrophoretic separation as front-end to mass spectrometric peptide analysis

    Lu, N., Sticker, Drago, Kretschmann, A., Petersen, Nickolaj J. & Kutter, Jörg P., Jun 2020, In: Analytical and Bioanalytical Chemistry. 412, 15, p. 3559-3571 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. 2019
  9. Published

    On-chip electromembrane extraction of acidic drugs

    Roman-Hidalgo, C., Santigosa-Murillo, E., Ramos-Payán, M., Petersen, Nickolaj J., Kutter, Jörg P. & Pedersen-Bjergaard, Stig, 2019, In: Electrophoresis. 40, 18-19, p. 2514-2521 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. 2018
  11. Published

    Nanoliter-Scale Electromembrane Extraction and Enrichment in a Microfluidic Chip

    Hansen, F. A., Sticker, Drago, Kutter, Jörg P., Petersen, Nickolaj J. & Pedersen-Bjergaard, Stig, 7 Aug 2018, In: Analytical Chemistry. 90, 15, p. 9322-9329

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    UV-vis Imaging of Piroxicam Supersaturation, Precipitation, and Dissolution in a Flow-Through Setup

    Sun, Y., Chapman, A., Larsen, Susan Weng, Jensen, H., Petersen, Nickolaj J., Goodall, D. M. & Østergaard, Jesper, 5 Jun 2018, In: Analytical Chemistry. 90, 11, p. 6413-6418

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Concomitant monitoring of implant formation and drug release of in situ forming poly (lactide-co-glycolide acid) implants in a hydrogel matrix mimicking the subcutis using UV–vis imaging

    Sun, Y., Jensen, H., Petersen, Nickolaj J., Larsen, Susan Weng & Østergaard, Jesper, 2018, In: Journal of Pharmaceutical and Biomedical Analysis. 150, p. 95-106

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Continuous electromembrane extraction coupled with mass spectrometry – Perspectives and challenges

    Fuchs, D., Hidalgo, C. R., Payán, M. D. R., Petersen, Nickolaj J., Jensen, H., Kutter, Jörg P. & Pedersen-Bjergaard, Stig, 2018, In: Analytica Chimica Acta. 999, p. 27-36

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. 2017
  16. Published

    Phase separation of in situ forming poly (lactide-co-glycolide acid) implants investigated using a hydrogel-based subcutaneous tissue surrogate and UV-vis imaging

    Sun, Y., Jensen, H., Petersen, Nickolaj J., Larsen, Susan Weng & Østergaard, Jesper, 25 Oct 2017, In: Journal of Pharmaceutical and Biomedical Analysis. 145, p. 682-691 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Automated coating procedures to produce poly(ethylene glycol) brushes in fused-silica capillaries

    Poulsen, N. N., Østergaard, Jesper, Petersen, Nickolaj J., Daasbjerg, K., Iruthayaraj, J., Dedinaite, A., Makuska, R. & Jensen, H., Feb 2017, In: Journal of Separation Science. 40, 3, p. 779–788

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Direct coupling of electromembrane extraction to mass spectrometry: Advancing the probe functionality toward measurements of zwitterionic drug metabolites

    Kige Rye, T., Fuchs, D., Pedersen-Bjergaard, Stig & Petersen, Nickolaj J., 2017, In: Analytica Chimica Acta. 983, p. 121-129 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. 2016
  20. Published

    Non-aqueous CE-MS of cinchona alkaloids - characterizationof a novel CE-ESI-MS interface

    Hansen, F. A., Hansen, S. H. & Petersen, Nickolaj J., 9 Jun 2016. 1 p.

    Research output: Contribution to conferenceConference abstract for conferenceResearch

  21. Published

    A novel sensitive sheathless CE-MS device for peptide and protein analysis

    Nguyen, T. T. T. N., Petersen, Nickolaj J. & Rand, Kasper Dyrberg, 8 Jun 2016. 1 p.

    Research output: Contribution to conferenceConference abstract for conferenceResearch

  22. Published

    Fully Automated Electro Membrane Extraction Autosampler for LC-MS Systems Allowing Soft Extractions for High-Throughput Applications.

    Fuchs, D., Pedersen-Bjergaard, Stig, Jensen, H., Rand, Kasper Dyrberg, Hansen, S. H. & Petersen, Nickolaj J., 29 May 2016, In: Analytical Chemistry. 88, 13, p. 6797−6804 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    A simple sheathless CE-MS interface with a sub-micrometer electrical contact fracture for sensitive analysis of peptide and protein samples

    Nguyen, T. T. T. N., Petersen, Nickolaj J. & Rand, Kasper Dyrberg, 2016, In: Analytica Chimica Acta. 936, p. 157–167 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    Direct coupling of a flow-flow electromembrane extraction probe to LC-MS

    Fuchs, D., Gabel-Jensen, C., Jensen, H., Rand, Kasper Dyrberg, Pedersen-Bjergaard, Stig, Hansen, S. H. & Petersen, Nickolaj J., 2016, In: Analytica Chimica Acta. 905, p. 93-99 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    Flow-Induced Dispersion Analysis for Probing Anti-dsDNA Antibody Binding Heterogeneity in Systemic Lupus Erythematosus Patients: Toward a New Approach for Diagnosis and Patient Stratification

    Poulsen, N. N., Pedersen, M. E., Østergaard, Jesper, Petersen, Nickolaj J., Nielsen, C. T., Heegaard, N. H. H. & Jensen, H., 2016, In: Analytical Chemistry. 88, 18, p. 9056-61 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  26. 2015
  27. Published

    Flow induced dispersion analysis rapidly quantifies proteins in human plasma samples

    Poulsen, N. N., Andersen, N. Z., Østergaard, Jesper, Zhuang, G., Petersen, Nickolaj J. & Jensen, H., 7 Jul 2015, In: The Analyst. 140, 13, p. 4365-69 5 p.

    Research output: Contribution to journalLetterResearchpeer-review

  28. Published

    Real Time Extraction Kinetics of Electro Membrane Extraction Verified by Comparing Drug Metabolism Profiles Obtained from a Flow-Flow Electro Membrane Extraction-Mass Spectrometry System with LC-MS

    Fuchs, D., Jensen, H., Pedersen-Bjergaard, Stig, Gabel-Jensen, C., Hansen, S. H. & Petersen, Nickolaj J., 2 Jun 2015, In: Analytical Chemistry. 87, 11, p. 5774-81 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  29. Published

    In-line coupling of electro membrane extraction (eme) to ms and lc-ms

    Fuchs, D., Jensen, H., Pedersen-Bjergaard, Stig & Petersen, Nickolaj J., 1 Jan 2015, MicroTAS 2015 - 19th International Conference on Miniaturized Systems for Chemistry and Life Sciences. Chemical and Biological Microsystems Society, p. 972-974 3 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsCommunication

  30. Published
  31. Published

    On-chip electromembrane extraction for monitoring drug metabolism in real time by electrospray ionization mass spectrometry

    Petersen, Nickolaj J., Jensen, H. & Pedersen-Bjergaard, Stig, 2015, Microchip Capillary Electrophoresis Protocols. Van Schepdael, A. (ed.). Humana Press, Vol. 1274. p. 171-82 12 p. (Methods in molecular biology (Clifton, N.J.)).

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  32. 2014
  33. Published

    Application of Temperature-Correlated Mobility Theory for Optimizing the MEKC Separation of the Main Lignans from Schisandra Chinensis Fructus and its prescription Yuye Decoction

    Liu, J., Petersen, Nickolaj J., Lee, K., Hansen, S. H., Lao, L., Sze, C. & Zhang, Y., 17 Jul 2014, In: Electrophoresis. 35, 20, p. 2907-14 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  34. Published

    Design and implementation of an automated liquid-phase microextraction-chip system coupled on-line with high performance liquid chromatography

    Li, B., Petersen, Nickolaj J., Payán, M. D. R., Hansen, S. H. & Pedersen-Bjergaard, Stig, Mar 2014, In: Talanta. 120, p. 224-9 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  35. Published

    Development and characterization of a small electromembrane extraction probe coupled with mass spectrometry for real-time and online monitoring of in vitro drug metabolism

    Dugstad, H. B., Petersen, Nickolaj J., Jensen, H., Gabel-Jensen, C., Hansen, S. H. & Pedersen-Bjergaard, Stig, 2014, In: Analytical and Bioanalytical Chemistry. 406, 2, p. 421-429

    Research output: Contribution to journalJournal articleResearchpeer-review

  36. 2013
  37. Published

    A capillary-based microfluidic device incorporating optical fibers for flow induced dispersion analysis

    Zhuang, G., Poulsen, N. N., Petersen, Nickolaj J., Østergaard, Jesper & Jensen, H., 2 Sep 2013, 8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE NEMS 2013. p. 1054-1057 4 p. 6559903

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsCommunication

  38. Published

    Nano-electromembrane extraction

    Payán, M. D. R., Li, B., Petersen, Nickolaj J., Jensen, H., Hansen, S. H. & Pedersen-Bjergaard, Stig, 27 Jun 2013, In: Analytica Chimica Acta. 785, p. 60-6 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  39. Published

    Easy peak tracking in CE-UV and CE-UV-ESI-MS by incorporating temperature-correlated mobility scaling

    Li, B., Petersen, Nickolaj J., Andersen, L. H. & Hansen, S. H., Jun 2013, In: Electrophoresis. 34, 12, p. 1787–1795

    Research output: Contribution to journalJournal articleResearchpeer-review

  40. Published

    Simpelt system viser lægemidlers omdannelse i kroppen

    Petersen, Nickolaj J., Jensen, H., Hansen, S. H. & Pedersen-Bjergaard, Stig, 2013, In: Lægemiddelforskning. 2013, p. 35-37

    Research output: Contribution to journalJournal articleResearch

  41. 2012
  42. Published

    Improving the reproducibility in capillary electrophoresis by incorporating current drift in mobility and peak area calculations

    Petersen, Nickolaj J. & Hansen, S. H., 2012, In: Electrophoresis. 33, 6, p. 1021-31 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  43. Published

    Liquid-phase microextraction in a microfluidic-chip: high enrichment and sample clean-up from small sample volumes based on three-phase extraction

    Payán, M. D. R., Jensen, H., Petersen, Nickolaj J., Hansen, S. H. & Pedersen-Bjergaard, Stig, 2012, In: Analytica Chimica Acta. 735, p. 46-53 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  44. Published

    On-chip electromembrane extraction for monitoring drug metabolism in real time by electrospray ionization mass spectrometry

    Petersen, Nickolaj J., Pedersen, J. S., Poulsen, N. N., Jensen, H., Skonberg, C., Hansen, S. H. & Pedersen-Bjergaard, Stig, 2012, In: The Analyst. 137, 14, p. 3321-3327 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  45. Published

    Selective electromembrane extraction at low voltages based on analyte polarity and charge

    Domínguez, N. C., Gjelstad, A., Nadal, A. M., Jensen, H., Petersen, Nickolaj J., Hansen, S. H., Rasmussen, K. E. & Pedersen-Bjergaard, Stig, 2012, In: Journal of Chromatography A. 1248, p. 48-54 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  46. 2011
  47. Published

    On-chip electro membrane extraction with online ultraviolet and mass spectrometric detection

    Petersen, Nickolaj J., Foss, S. T., Jensen, Henrik Elvang, Hansen, S. H., Skonberg, C., Snakenborg, D., Kutter, Jörg P. & Pedersen-Bjergaard, Stig, 1 Jan 2011, In: Analytical Chemistry. 83, 1, p. 44-51 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  48. Published

    On-chip electro membrane extraction with online ultaviolet and mass spectrometric detection

    Petersen, Nickolaj J., Foss, S. T., Jensen, H., Hansen, S. H., Skonberg, C., Snakenborg, D., Kutter, J. P. & Pedersen-Bjergaard, Stig, Jan 2011, In: Analytical Chemistry. 83, 1, p. 44-51

    Research output: Contribution to journalJournal articleResearchpeer-review

  49. Published

    Electromembrane extraction from biological fluids

    Petersen, Nickolaj J., Rasmussen, K. E., Pedersen-Bjergaard, Stig & Gjelstad, A., 2011, In: Analytical Sciences. 27, p. 965-972

    Research output: Contribution to journalReviewResearchpeer-review

  50. 2010
  51. Published

    On-chip electro membrane exctraction

    Petersen, Nickolaj J., Jensen, H., Hansen, S. H., Foss, S. T., Snakenborg, D. & Pedersen-Bjergaard, Stig, 2010, In: Microfluidics and Nanofluidics. 9, p. 881-888

    Research output: Contribution to journalJournal articleResearchpeer-review

  52. 2009
  53. Published

    Drop-to-drop microextraction across a supported liquid membrane by an electrical field under stagnant conditions

    Petersen, Nickolaj J., Jensen, H., Hansen, S. H., Rasmussen, K. E. & Pedersen-Bjergaard, Stig, 2009, In: Journal of Chromatography A. 1216, 9, p. 1496-1502

    Research output: Contribution to journalJournal articleResearchpeer-review

  54. 2005
  55. Published

    Concentration and separation of ionic analytes using nano-microchannel junctions

    Petersen, Nickolaj J. & Ramsey, J. M., 2005, Micro Total Analysis Systems - Proceedings of MicroTAS 2005 Conference: 9th International Conference on Miniaturized Systems for Chemistry and Life Sciences. Transducer Research Foundation, p. 1252-1254 3 p. (Micro Total Analysis Systems - Proceedings of MicroTAS 2005 Conference: 9th International Conference on Miniaturized Systems for Chemistry and Life Sciences, Vol. 1).

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  56. Conductivity in nanofluidic channels: Fundamentals and applications

    Petersen, Nickolaj J., Alarie, J. P. & Ramsey, J. M., 2005, MicroScale Bioseparations. p 158 ed. Vol. 1.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  57. Interfaceial conductivity in nanofluidic channels

    Petersen, Nickolaj J. & Ramsey, J. M., 2005, LabAutomation 2005.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  58. 2004
  59. Effect of Joule heating on efficiency and performance for microchip-based and capillary-based electrophoretic separation systems: A closer look

    Petersen, Nickolaj J., P. H. Nikolajsen, R., B. Mogensen, K. & P. Kutter, J., 2004, In: Electrophoresis. 25, 2, p. 253-269

    Research output: Contribution to journalJournal articleResearchpeer-review

  60. Study of interface conductivity and its possible applications

    Petersen, Nickolaj J., Dutta, D., Alarie, J. P. & Ramsey, J. M., 2004, Micro Total Analysis Systems 2004.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  61. 2003
  62. A microfluidic device with an integrated waveguide beam splitter for velocity measurements of flowing particles by Fourier transformation

    B. Mogensen, K., C. Kwok, Y., C. T. Eijkel, J., Petersen, Nickolaj J., Manz, A. & P. Kutter, J., 2003, In: Analytical Chemistry. 75, 18, p. 4931-4936

    Research output: Contribution to journalJournal articleResearchpeer-review

  63. Polyelectrolyte transport in nanoconfined channels

    Petersen, Nickolaj J., Alarie, J. P., Jacobson, S. C. & Ramsey, J. M., 2003, Proceedings of the µTAS 2003 Symposium. p. 701-703

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  64. 2002
  65. Molecular transport through nanometer confined channels

    Ramsey, J. M., Alarie, J. P., Jacobson, S. C. & Petersen, Nickolaj J., 2002, Proceedings of the µTAS 2002 Symposium. p. 314-316

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  66. Performance of an in-plane detection cell with integrated waveguides for UV/Vis absorbance measurements on microfluidic separation devices

    Petersen, Nickolaj J., B. Mogensen, K. & P. Kutter, J., 2002, In: Electrophoresis. 23, 20, p. 3528-3536

    Research output: Contribution to journalJournal articleResearchpeer-review

  67. PhD Thesis: Electrophoretic Seperations on Microchips : Performance and Possibilities

    Petersen, Nickolaj J., 2002, In: MIC-Department of Micro and Nanotechnology.

    Research output: Contribution to journalJournal articleResearchpeer-review

  68. 2001
  69. Monolithic integration of optical waveguides for absorbance detection in microfabricated electrophoresis devices

    B. Mogensen, K., Petersen, Nickolaj J., Hübner, J. & P. Kutter, J., 2001, In: Electrophoresis. 22, 18, p. 3930-3938

    Research output: Contribution to journalJournal articleResearchpeer-review

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