Combination of Standard Addition and Isotope Dilution Mass Spectrometry for the Accurate Determination of Melamine and Cyanuric Acid in Infant Formula
Pedan, Vasilisa, Koehling, Rudolf, Drexel, Lukas, Breitruck, Kathrin, Rueck, Alexander, Rohn, Sascha, Rienitz, Olaf, Pramann, Axel, Seidel, Tim, Allenspach, Eric, Obkircher, Markus
Published in Foods (01.08.2024)
Published in Foods (01.08.2024)
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Journal Article
Certified Reference Material for Use in 1H, 31P, and 19F Quantitative NMR, Ensuring Traceability to the International System of Units
Rigger, Romana, Rück, Alexander, Hellriegel, Christine, Sauermoser, Robert, Morf, Fabienne, Breitruck, Kathrin, Obkircher, Markus
Published in Journal of AOAC International (01.09.2017)
Published in Journal of AOAC International (01.09.2017)
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Journal Article
Method development in quantitative NMR towards metrologically traceable organic certified reference materials used as 31P qNMR standards
Weber, Michael, Hellriegel, Christine, Rueck, Alexander, Wuethrich, Juerg, Jenks, Peter, Obkircher, Markus
Published in Analytical and bioanalytical chemistry (2015)
Published in Analytical and bioanalytical chemistry (2015)
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Journal Article
Enzymatic Synthesis of 2-Keto-3-Deoxy-6-Phosphogluconate by the 6-Phosphogluconate-Dehydratase From Caulobacter crescentus
Krevet, Sabine, Shen, Lu, Bohnen, Timon, Schoenenberger, Bernhard, Meier, Roland, Obkircher, Markus, Bangert, Klara, Koehling, Rudolf, Allenspach, Eric, Siebers, Bettina, Bräsen, Christopher
Published in Frontiers in bioengineering and biotechnology (20.03.2020)
Published in Frontiers in bioengineering and biotechnology (20.03.2020)
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Journal Article
Corrigendum: Enzymatic Synthesis of 2-Keto-3-Deoxy-6-Phosphogluconate by the 6-Phosphogluconate-Dehydratase From Caulobacter crescentus
Krevet, Sabine, Shen, Lu, Bohnen, Timon, Schoenenberger, Bernhard, Meier, Roland, Obkircher, Markus, Bangert, Klara, Koehling, Rudolf, Allenspach, Eric, Wohlgemuth, Roland, Siebers, Bettina, Bräsen, Christopher
Published in Frontiers in bioengineering and biotechnology (28.07.2020)
Published in Frontiers in bioengineering and biotechnology (28.07.2020)
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Journal Article
Development of a novel certified reference material for the determination of polycyclic aromatic hydrocarbons (PAHs) in whey protein powder
Lobsiger, Simon, Märki, Lena, Mallia, Silvia, Umbricht, Gisela, Sprecher, Hanspeter, Breitruck, Kathrin, Obkircher, Markus
Published in Analytical and bioanalytical chemistry (01.09.2023)
Published in Analytical and bioanalytical chemistry (01.09.2023)
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Journal Article
Direct extraction with acetonitrile of hemp seed oil for the analysis of pesticides by using comprehensive two-dimensional gas chromatography-triple quadrupole mass spectrometry
Arena, Alessia, Ferracane, Antonio, Zoccali, Mariosimone, Obkircher, Markus, Sprecher, Hanspeter, Tranchida, Peter Q., Mondello, Luigi
Published in Journal of Chromatography A (08.11.2023)
Published in Journal of Chromatography A (08.11.2023)
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Journal Article
Development of the first universal mixture for use in system suitability tests for High-Performance Thin Layer Chromatography
Do, Thi Kieu Tiên, Schmid, Marco, Phanse, Manjusha, Charegaonkar, Akshay, Sprecher, Hanspeter, Obkircher, Markus, Reich, Eike
Published in Journal of Chromatography A (08.02.2021)
Published in Journal of Chromatography A (08.02.2021)
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Journal Article
L-fuculokinase-catalyzed phosphorylation and its use for the straightforward synthesis of L-fuculose-1-phosphate
Hardt, Norman, Kind, Stefanie, Meier, Roland, Schoenenberger, Bernhard, Eggert, Thorsten, Obkircher, Markus, Wohlgemuth, Roland
Published in Biocatalysis and biotransformation (16.05.2024)
Published in Biocatalysis and biotransformation (16.05.2024)
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Journal Article
Is harmonisation of performance assessment in non-quantitative proficiency testing possible/necessary?
Tiikkainen, Ulla, Ciaralli, Laura, Laurent, Caroline, Obkircher, Markus, Patriarca, Marina, Robouch, Piotr, Sarkany, Erika
Published in Accreditation and quality assurance (01.02.2022)
Published in Accreditation and quality assurance (01.02.2022)
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Journal Article
Method development in quantitative NMR towards metrologically traceable organic certified reference materials used as (31)P qNMR standards
Weber, Michael, Hellriegel, Christine, Rueck, Alexander, Wuethrich, Juerg, Jenks, Peter, Obkircher, Markus
Published in Analytical and bioanalytical chemistry (01.04.2015)
Published in Analytical and bioanalytical chemistry (01.04.2015)
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Journal Article
Efficient biocatalytic synthesis of D-tagatose 1,6-diphosphate by LacC-catalysed phosphorylation of D-tagatose 6-phosphate
Schoenenberger, Bernhard, Kind, Stefanie, Meier, Roland, Eggert, Thorsten, Obkircher, Markus, Wohlgemuth, Roland
Published in Biocatalysis and biotransformation (02.01.2020)
Published in Biocatalysis and biotransformation (02.01.2020)
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Journal Article
Facile synthesis of D-xylulose-5-phosphate and L-xylulose-5-phosphate by xylulokinase-catalyzed phosphorylation
Hardt, Norman, Kind, Stefanie, Schoenenberger, Bernhard, Eggert, Thorsten, Obkircher, Markus, Wohlgemuth, Roland
Published in Biocatalysis and biotransformation (02.01.2020)
Published in Biocatalysis and biotransformation (02.01.2020)
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Journal Article
Certified Reference Material for Use in [.sup.1]H, [.sup.31]P, and [.sup.19]F Quantitative NMR, Ensuring Traceability to the International System of Units
Rigger, Romana, Ruck, Alexander, Hellriegel, Christine, Sauermoser, Robert, Morf, Fabienne, Breitruck, Kathrin, Obkircher, Markus
Published in Journal of AOAC International (01.09.2017)
Published in Journal of AOAC International (01.09.2017)
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Journal Article
Synthesis of Nω‐Phospho‐l‐arginine by Biocatalytic Phosphorylation of l‐Arginine
Schoenenberger, Bernhard, Wszolek, Agata, Milesi, Thomas, Brundiek, Henrike, Obkircher, Markus, Wohlgemuth, Roland
Published in ChemCatChem (09.01.2017)
Published in ChemCatChem (09.01.2017)
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Journal Article
Biocatalytic Asymmetric Phosphorylation Catalyzed by Recombinant Glycerate‐2‐Kinase
Hardt, Norman, Kinfu, Birhanu M., Chow, Jennifer, Schoenenberger, Bernhard, Streit, Wolfgang R., Obkircher, Markus, Wohlgemuth, Roland
Published in Chembiochem : a European journal of chemical biology (04.08.2017)
Published in Chembiochem : a European journal of chemical biology (04.08.2017)
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Journal Article
The qNMR Summit 5.0: Proceedings and Status of qNMR Technology
Giancaspro, Gabriel, Adams, Kristie M, Bhavaraju, Sitaram, Corbett, Charlotte, Diehl, Bernd, Freudenberger, J. Christoph, Fritsch, Klaus, Krishnamurthy, Krish, Laatikainen, Pekka, Martos, Gustavo, Miura, Toru, Nam, Joo-Won, Niemitz, Matthias, Nishizaki, Yuzo, Sugimoto, Naoki, Obkircher, Markus, Phansalkar, Rasika, Ray, G. Joseph, Saito, Takeshi, Sørensen, Dan, Urbas, Aaron, Napolitano, José G, Tadjimukhamedov, Fatkhulla, Bzhelyansky, Anton, Liu, Yang, Pauli, Guido F
Published in Analytical chemistry (Washington) (14.09.2021)
Published in Analytical chemistry (Washington) (14.09.2021)
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