Lipidic Bioactives
GC-MS
Plant Based Products
Characterization of tocopherols, Δ7-sterols, and triterpenoids in shea kernels from a field preservation trial in Burkina Faso
Kit Granby, Paula Toma, Ella Walbeogo, Peter Christensen, Yaya Dao, Tore K. Ravn, Jan H. Christensen, Nikoline Juul Nielsen
Food Chemistry (2026) — Forthcoming Manuscript
(Manuscript submitted, details available upon request)
Lipid Profiling
GC-MS
Plant Based Products
Traditional treatment techniques in Burkina Faso and Ghana and their impact on the lipid profile of shea kernels
Nikoline J. Nielsen, Nerea Turreira-García, Xiaomeng Liang, Ella Walbeogo, Yaya Dao, Ewa Makowicz, Bo Svensmark, Berit Kristensen, Jesper Larsen, Tore K. Ravn, Jan H. Christensen
Food & Humanity (2026) — Forthcoming Manuscript
(Manuscript submitted, details available upon request)
LC-HRMS
Wastewater
Developing a cost and time efficient strategy for assessing novel materials for wastewater treatment with non-target screening analysis
Alba Rodriguez-Otero, Selina Tisler, Lisa M. Reinhardt, Mathias B. Jørgensen, David I. Pattison, Brice Bouyssiere, Jan H. Christensen
Water Quality
LC-HRMS
Drinking Water
Inventory and risk characterization of urban runoff pollutants in Europe
Thomas Molnár Karlsson, Ulla E. Bollmann, Tina Kosjek, Agnese Arāja, Māris Bērtiņš, Stefano Tempestini, Jesús F. Águila, Nicolás Morales, Rubén Díez-Montero, Anders R. Johnsen, Jan H. Christensen
Lipidic Bioactives
GC-MS
Plant Based Products
Identification of semi-volatile specialized metabolites from Vitellaria paradoxa (shea) kernels using GC-MS
Paula Toma, Kit Granby, Peter Christensen, Ella Walbeogo, Yaya Dao, Tore K. Ravn, Jan H. Christensen, Nikoline J. Nielsen
Lipidic Bioactives
GC-MS
Plant Based Products
Quantitative results of tocopherols, sterols, triterpene esters, and lipid degradation products in shea kernels using native or quantifier ion intensity corrected analogue standards
Kit Granby, Paula Toma, Peter Christensen, Ella Walbeogo, Yaya Dao, Tore K. Ravn, Jan H. Christensen, Nikoline J. Nielsen
Polar Bioactives
LC-HRMS
Plant Based Products
Impact of West African treatment practices on phenolic profiles in shea kernels
Romina A. Forte Neran, Ella Walbeogo, Yaya Dao, Tore K. Ravn, Berit Kristensen, Jan H. Christensen, Nikoline J. Nielsen
Polar Bioactives
LC × LC
LC-HRMS
Plant Based Products
Data-independent profiling of phenolic constituents in shea using comprehensive two-dimensional liquid chromatography (RPLC × HILIC) hyphenated to cyclic ion mobility-quadrupole-time-of-flight mass spectrometry
Nikoline J. Nielsen, Oskar M. Kronik, Romina A. Forte Neran, Jan H. Christensen, Tore K. Ravn, André de Villiers
Lipid Profiling
LC-HRMS
GC-MS
Bio-Resources & Sustainability
Fermenting shea nuts using the traditional pit method yields better physicochemical properties with potential environmental benefits
Nerea Turreira-García, Nikoline J. Nielsen, David I. Pattison, Ewa Makowicz, Ella Walbeogo, Yaya Dao, Jan H. Christensen, Mariève Pouliot
Water Quality
SFC-HRMS
LC-HRMS
Drinking Water
A non-target evaluation of drinking water contaminants in pilot scale activated carbon and anion exchange resin treatments
Selina Tisler, Natasa Skrbic Mrkajic, Lisa M. Reinhardt, Christine Mosegaard Jensen, Liselotte Clausen, Anne Holm Thomsen, Hans-Jørgen Albrechtsen, Jan H. Christensen
GC × GC
SFC-HRMS
Wastewater
LC-HRMS
Mapping Emerging Contaminants in Wastewater Effluents through Multichromatographic Platform Analysis and Source Correlations
Selina Tisler, Kristoffer Kilpinen, Jason Devers, Mafalda Castro, Mathias B. Jørgensen, Geeta Mandava, Johan Lundqvist, Nina Cedergreen, Jan H. Christensen
SFC-HRMS
Wastewater
Nontarget and Suspect Screening of Fluorinated Ionic Liquids and PFAS in European Wastewaters Using Supercritical Fluid Chromatography
Selina Tisler, Jonathan Zweigle, Maria Kregler Gotil, Saskia Finckh, Werner Brack, Eva-Maria Braxmaier, Corina Meyer, Juliane Hollender, Tina Kosjek, Emma L. Schymanski, Pontus Larsson, Anna Kärrman, Erica Selin, Dalia Elabbadi, Harry Elliss, Barbara Kasprzyk-Hordern, Tim Boogaerts, Adrian Covaci, Herbert Oberacher, Harold Flores Quintana, Foon Yin Lai, Lutz Ahrens, Azziz Assoumani, Frederic Béen, Jan H. Christensen
GC × GC
Wastewater
GC-MS
New strategies for non-targeted quantification in comprehensive two-dimensional gas chromatography: The potential of reconstructed TIC response factor surfaces
Jason Devers, David I. Pattison, Asger B. Hansen, Jan H. Christensen
Water Quality
SFC-HRMS
LC-HRMS
Drinking Water
Not One Method to Rule Them All: A Comparative Study of Chromatographic Platforms (RP-LC-, HILIC-, SFC-, and IC-HRMS) for Water Analysis
Jonathan Zweigle, Michael Schlüsener, Joana Flottmann, Tobias Bader, Nanna Hjort Vidkjær, Ulla E. Bollmann, Jan H. Christensen, Selina Tisler
Water Quality
LC-HRMS
Drinking Water
Overcoming Matrix Effects in Non-Target Screening: A Novel Strategy for Urban Runoff Analysis
Thomas Molnár Karlsson, Jan H. Christensen
Water Quality
LC-HRMS
Drinking Water
Prioritization strategies for non-target screening in environmental samples by chromatography - High-resolution mass spectrometry: A tutorial
Jonathan Zweigle, Selina Tisler, Marta Bevilacqua, Giorgio Tomasi, Nikoline J. Nielsen, Nadine Gawlitta, Josephine S. Lübeck, Age K. Smilde, Jan H. Christensen
GC-MS
Wastewater
Real-time monitoring of contaminants of emerging concern in effluent wastewater with dynamic headspace gas chromatography mass spectrometry analysis
Mathias B. Jørgensen, Jimi B. Dan, Kristian R. Nielsen, Tore Vulpius, Jan H. Christensen
Water Quality
LC-HRMS
Drinking Water
Assessing contaminant leaching from concrete in water storage tanks using non-target screening
Victoria Eriksson, Bo C. Christiansen, Sarah C. B. Christensen, Nikoline Juul Nielsen, Jan H. Christensen, Selina Tisler
LC-HRMS
Wastewater
Charge as a key physicochemical factor in adsorption of organic micropollutants from wastewater effluent by rice husk bio-silica
Alba Rodriguez-Otero, Selina Tisler, Lisa M. Reinhardt, Mathias B. Jørgensen, Brice Bouyssiere, Jan H. Christensen
LC-HRMS
Wastewater
Fate of antidepressants in municipal wastewater: Activated carbon as the most effective removal strategy for amitriptyline, melitracen, and their transformation products
Isidora Dukic, Jan H. Christensen, Selina Tisler
Polar Bioactives
LC × LC
Plant Based Products
LC-HRMS
Evaluation of ion mobility, uni- and multidimensional liquid chromatography for non-target screening of phenolic compounds in wheat flag leaves
Oskar Munk Kronik, Ewa Makowicz, Jan H. Christensen, Nikoline Juul Nielsen, André de Villiers
LC-HRMS
Wastewater
Temporal trends and sources of organic micropollutants in wastewater
Kristoffer Kilpinen, Selina Tisler, Mathias B. Jørgensen, Peter Mortensen, Jan H. Christensen
Wastewater
GC × GC
LC-HRMS
Advanced Chromatographic Approaches for the Comprehensive Analysis of Emerging Contaminants in Wastewater Effluents
Selina Tisler, Kristoffer Kilpinen, Jason Devers, Mathias Blichert Jørgensen, Jan H. Christensen
Water Quality
GC-MS
LC-HRMS
Drinking Water
A non-target screening study of high-density polyethylene pipes revealed rubber compounds as main contaminant in a drinking water distribution system
Tomas Diera, Anne Holm Thomsen, Selina Tisler, Lone Tolstrup Karlby, Peter Christensen, Per Sand Rosshaug, Hans-Jørgen Albrechtsen, Jan H. Christensen
SFC-HRMS
Wastewater
LC-HRMS
Supercritical Fluid Chromatography Coupled to High-Resolution Mass Spectrometry Reveals Persistent Mobile Organic Compounds with Unknown Toxicity in Wastewater Effluents
Selina Tisler, Pinelopi Savvidou, Mathias B. Jørgensen, Mafalda Castro, Jan H. Christensen
LC-HRMS
GC-MS
Wastewater
Investigation of micropollutants in household waste fractions processed by anaerobic digestion: target analysis, suspect- and non-target screening
Nikoline J. Nielsen, Peter Christensen, Kristoffer G. Poulsen, Jan H. Christensen
GC × GC
LC-HRMS
Wastewater
Catchment area, fate, and environmental risks investigation of micropollutants in Danish wastewater
Kristoffer Kilpinen, Jason Devers, Mafalda Castro, Selina Tisler, Mathias B. Jørgensen, Peter Mortensen, Jan H. Christensen
Water Quality
SFC-HRMS
Drinking Water
LC-HRMS
Non-target screening of micropollutants and transformation products for assessing AOP-BAC treatment in groundwater
Selina Tisler, Peter L. Tüchsen, Jan H. Christensen
LC-HRMS
Wastewater
From data to reliable conclusions: Identification and comparison of persistent micropollutants and transformation products in 37 wastewater samples by non-target screening prioritization
Selina Tisler, Nikolina Engler, Mathias B. Jørgensen, Kristoffer Kilpinen, Giorgio Tomasi, Jan H. Christensen
Water Quality
GC-MS
Drinking Water
A retrospective quantification study of benzoic acid, ibuprofen, and mecoprop in Danish groundwater samples
Peter Christensen, Mette Kristensen, Hans Christian B. Hansen, Ole K. Borggaard, Jan H. Christensen
LC-HRMS
Wastewater
Transformation Products of Fluoxetine Formed by Photodegradation in Water and Biodegradation in Zebrafish Embryos (Danio rerio)
Selina Tisler, Florian Zindler, Finnian Freeling, Karsten Nödler, László Toelgyesi, Thomas Braunbeck, Christian Zwiener
Sustainable Chemistry
SFC-HRMS
Bio-Resources & Sustainability
Mild hydrotreatment as a stabilization step for nitrogen-rich sewage sludge biocrude in a pilot-scale trickle-bed reactor
Magnus Z. Stummann, Josephine S. Lübeck, Jens A. Hansen, Karina K. Sjøholm, Jan H. Christensen
Sustainable Chemistry
SFC-HRMS
Bio-Resources & Sustainability
Molecular Composition and Hydrotreatment Effects in Sewage Sludge Pyrolysis Biocrude Revealed by Supercritical Fluid Chromatography–Mass Spectrometry
Josephine S. Lübeck, Magnus Z. Stummann, Karina K. Sjøholm, Jens A. Hansen, Asger B. Hansen, Jan H. Christensen
Hydrocarbon Fingerprinting
GC × GC
Sediments & Freshwater
GC × GC–HRMS nontarget fingerprinting of organic micropollutants in urban freshwater sediments
Josephine S. Lübeck, Guilherme L. Alexandrino, Jan H. Christensen
Sustainable Chemistry
SFC-HRMS
Bio-Resources & Sustainability
Hyphenating supercritical fluid chromatography and inductively coupled plasma mass spectrometry: a proof of concept
Victor Garcia-Montoto, Pablo Denti, Linus M. V. Malmquist, Sylvain Verdier, Brice Bouyssiere, Jan H. Christensen
Sustainable Chemistry
SFC-HRMS
Bio-Resources & Sustainability
Nontarget Analysis of Oxygenates in Catalytic Fast Pyrolysis Biocrudes by Supercritical Fluid Chromatography High-Resolution Mass Spectrometry
Josephine S. Lübeck, Giorgio Tomasi, Kristoffer G. Poulsen, Ofei D. Mante, David C. Dayton, Sylvain Verdier, Jan H. Christensen
Sustainable Chemistry
SFC-HRMS
Bio-Resources & Sustainability
Supercritical fluid chromatography for the analysis of oxygenated polycyclic aromatic compounds in unconventional oils
Josephine S. Lübeck, Linus M. V. Malmquist, Jan H. Christensen
Hydrocarbon Fingerprinting
GC × GC
Petroleum & Diesel Spills
Investigating weathering in light diesel oils using comprehensive two-dimensional gas chromatography–High resolution mass spectrometry and pixel-based analysis: Possibilities and limitations
Guilherme L. Alexandrino, Jonas Malmborg, Fabio Augusto, Jan H. Christensen
Hydrocarbon Fingerprinting
GC × GC
Petroleum & Diesel Spills
Forensic Investigations of Diesel Oil Spills in the Environment Using Comprehensive Two-Dimensional Gas Chromatography–High Resolution Mass Spectrometry and Chemometrics: New Perspectives in the Absence of Recalcitrant Biomarkers
Guilherme L. Alexandrino, Giorgio Tomasi, Paul G. M. Kienhuis, Fabio Augusto, Jan H. Christensen
Sustainable Chemistry
GC × GC
Bio-Resources & Sustainability
Complementary Analysis of the Water-Soluble and Water-Insoluble Fraction of Catalytic Fast Pyrolysis Biocrudes by Two-Dimensional Gas Chromatography
Mette Kristensen, Asger B. Hansen, Ofei D. Mante, David C. Dayton, Sylvain Verdier, Peter Christensen, Jan H. Christensen
Hydrocarbon Fingerprinting
GC-MS
Contaminated Soils
Chemical fingerprinting of hydrocarbon-contamination in soil
Esther S. Boll, Jens Nejrup, Julie K. Jensen, Jan H. Christensen
Hydrocarbon Fingerprinting
GC-MS & Chemometrics
Environmental Petrogenic
A Tucker model based approach for analysis of complex oil biodegradation data
Giorgio Tomasi, Jan H. Christensen
Hydrocarbon Fingerprinting
GC-MS
Environmental Petrogenic
Practical aspects of chemometrics for oil spill fingerprinting
Jan H. Christensen, Giorgio Tomasi
Hydrocarbon Fingerprinting
GC-MS
Environmental Petrogenic
Multivariate statistical methods for evaluating biodegradation of mineral oil
Jan H. Christensen, Asger B. Hansen, Ulrich Karlson, John Mortensen, Ole Andersen
Hydrocarbon Fingerprinting
Spectroscopy & Chemometrics
Environmental Petrogenic
Characterization and Matching of Oil Samples Using Fluorescence Spectroscopy and Parallel Factor Analysis
Jan H. Christensen, Asger B. Hansen, John Mortensen, Ole Andersen
Hydrocarbon Fingerprinting
GC-MS
Environmental Petrogenic
Chemical Fingerprinting of Petroleum Biomarkers Using Time Warping and PCA
Jan H. Christensen, Giorgio Tomasi, Asger B. Hansen
Hydrocarbon Fingerprinting
GC-MS
Environmental Petrogenic
Integrated Methodology for Forensic Oil Spill Identification
Jan H. Christensen, Asger B. Hansen, Giorgio Tomasi, John Mortensen, Ole Andersen