Peer-Reviewed Science

Scientific Publications & Reference Library

At NTS Analytica, our methodologies and diagnostics are backed by rigorous, peer-reviewed scientific literature and ongoing industrial collaborations. Explore the publications and forthcoming manuscripts authored by our team and partners.

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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

Journal of Hazardous Materials, 503 (2026) 141115.
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

Water Research, 297 (2026) 125680.
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

Journal of Food Composition and Analysis, 147 (2025) 108042.
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

Talanta Open, 12 (2025) 100570.
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

Food Chemistry, 487 (2025) 144832.
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

Journal of Chromatography A, 1756 (2025) 466092.
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

Scientific Reports, 15 (2025) 93921.
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

Water Research, 271 (2025) 122871.
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

Environmental Science & Technology, 59 (2025) 5766-5774.
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

Environmental Science & Technology, 59 (2025) 21300-21311.
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

Journal of Chromatography A, 1747 (2025) 465811.
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

Analytical Chemistry, 97 (45) (2025) 25099-25110.
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

Analytical Chemistry, 97 (25) (2025) 13274-13281.
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

Journal of Chromatography A, 1751 (2025) 465944.
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

Journal of Chromatography A, 1749 (2025) 465895.
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

Environmental Science and Pollution Research, 32 (47) (2025) 26779-26789.
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

Water Research, 268 (2025) 122748.
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

Science of the Total Environment, 992 (2025) 179964.
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

Journal of Chromatography A, 1764 (2025) 466459.
LC-HRMS Wastewater

Temporal trends and sources of organic micropollutants in wastewater

Kristoffer Kilpinen, Selina Tisler, Mathias B. Jørgensen, Peter Mortensen, Jan H. Christensen

Science of the Total Environment, 957 (2024) 177555.
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

Water Research, 229 (2023) 119480.
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

Environmental Science & Technology, 57 (2023) 9287-9297.
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

Environmental Science and Pollution Research, 30 (2023) 48491-48507.
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

Environmental Science and Pollution Research, 30 (54) (2023) 115049-115061.
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

Environmental Pollution, 309 (2022) 119758.
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 Research, 219 (2022) 118599.
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

Environmental Advances, 7 (2022) 100180.
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

Environmental Science & Technology, 53 (2019) 7400-7409.