Publications by authors named "Rafal Typek"

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Gas chromatography-mass spectrometry signal enhancement of ortho-allylphenols by their cyclization.
Rafal Typek, Michal P Dybowski, Piotr Holowinski, Andrzej L Dawidowicz

J Chromatogr A· October 2025

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Cyclization of γ-hydroxybutyric acid (GHBA) as a strategy to enhance its signal in gas chromatography analysis.
Rafal Typek, Michal P Dybowski, Andrzej L Dawidowicz

Forensic Toxicol· September 2025

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Unveiling the ethnomedicinal potential of Alchemilla speciosa Buser: An underexplored source of bioactive compounds for skin health.
Sebastian Kanak, Katarzyna Klimek, Małgorzata Miazga-Karska, Michał P Dybowski, Rafał Typek

J Ethnopharmacol· July 2025

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Transformation of Cannabidiol (CBD) during its high-temperature extraction: Studies involving model systems, hemp and functional foods containing CBD.
Rafal Typek, Michal P Dybowski, Andrzej L Dawidowicz

Food Chem· June 2025

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Xenobiotics recovery from plasma using solid phase extraction with C-18 sorbent - The reasons of literature discrepancies.
Rafal Typek, Michal P Dybowski, Michal Rombel, Piotr Holowinski, Andrzej L Dawidowicz

J Chromatogr B Analyt Technol Biomed Life Sci· January 2025

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Novel Basidiomycetous Alcohol Oxidase from -Characterisation, Kinetics, and Proteolytic Modifications.
Sylwia Stefanek, Rafał Typek, Michał Dybowski, Dorota Wianowska, Magdalena Jaszek

Int J Mol Sci· November 2024

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Synthesis and anthelmintic activity of novel thiosemicarbazide and 1,2,4-triazole derivatives: In vitro, in vivo, and in silico study.
Przemysław Kołodziej, Monika Wujec, Maria Doligalska, Anna Makuch-Kocka, Dmytro Khylyuk, Rafał Typek

J Adv Res· June 2024

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Novel Insights into L. Sprouts: Phytochemical Analysis and Anti-Aging Properties.
Ewelina Rostkowska, Ewa Poleszak, Agata Przekora, Michał Wójcik, Rafał Typek

Molecules· June 2024

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Transformation of phenolic acids during radical neutralization.
Małgorzata Olszowy-Tomczyk, Rafał Typek

J Food Sci Technol· April 2024

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Cannabigerol (CBG) signal enhancement in its analysis by gas chromatography coupled with tandem mass spectrometry.
Andrzej L Dawidowicz, Rafal Typek, Michal P Dybowski, Piotr Holowinski, Michal Rombel

Forensic Toxicol· January 2024

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GC vs. HPLC in quantitation of CBD, CBG, ∆9-THC and CBN in plasma using different sample preparation methods.
Michal P Dybowski, Andrzej L Dawidowicz, Michal Rombel, Rafal Typek

J Pharm Biomed Anal· September 2023

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Unexpected formation of dichloroacetic and trichloroacetic artefacts in gas chromatograph injector during Cannabidiol analysis.
Andrzej L Dawidowicz, Michal P Dybowski, Rafal Typek, Michal Rombel, Piotr Holowinski

J Pharm Biomed Anal· June 2023

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Effects of topical dehydroepiandrosterone therapy in women after pelvic organ prolapse surgery.
Łukasz Nowakowski, Krzysztof Gałczyński, Michał Dybowski, Rafał Typek, Andrzej Dawidowicz

Menopause· June 2023

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The Anti-Acne Potential and Chemical Composition of Heuff. and Griseb Extracts.
Małgorzata Chrząszcz, Małgorzata Miazga-Karska, Katarzyna Klimek, Michał P Dybowski, Rafał Typek

Int J Mol Sci· May 2023

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Chromatographic analysis of CBD and THC after their acylation with blockade of compound transformation.
Rafal Typek, Piotr Holowinski, Andrzej L Dawidowicz, Michal P Dybowski, Michal Rombel

Talanta· January 2023

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Natural vs. artificial cannabinoid oils: the comparison of their antioxidant activities.
Andrzej L Dawidowicz, Rafał Typek, Małgorzata Olszowy-Tomczyk

Eur Food Res Technol· September 2022

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Oleamide as analyte protectant in GC analysis of THC and its metabolites in blood.
Andrzej L Dawidowicz, Michal P Dybowski, Michal Rombel, Rafal Typek

J Pharm Biomed Anal· June 2022

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Formation of trifluoroacetic artefacts in gas chromatograph injector during Cannabidiol analysis.
Piotr Holowinski, Rafal Typek, Andrzej L Dawidowicz, Michal Rombel, Michal P Dybowski

J Chromatogr A· May 2022

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Can Extracts from the Leaves and Fruits of the Species Be Considered Promising Anti-Acne Agents?
Barbara Krzemińska, Michał P Dybowski, Katarzyna Klimek, Rafał Typek, Małgorzata Miazga-Karska

Molecules· May 2022

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The Anti-Acne Potential and Chemical Composition of Two Cultivated Species.
Barbara Krzemińska, Michał P Dybowski, Katarzyna Klimek, Rafał Typek, Małgorzata Miazga-Karska

Cells· January 2022

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Synergistic and antagonistic antioxidant effects in the binary cannabinoids mixtures.
Andrzej L Dawidowicz, Małgorzata Olszowy-Tomczyk, Rafał Typek

Fitoterapia· September 2021

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Improving the sensitivity of estimating CBD and other xenobiotics in plasma samples: Oleamide-induced transient matrix effect.
Andrzej L Dawidowicz, Michal P Dybowski, Michal Rombel, Rafal Typek

J Pharm Biomed Anal· September 2021

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CBG, CBD, Δ9-THC, CBN, CBGA, CBDA and Δ9-THCA as antioxidant agents and their intervention abilities in antioxidant action.
Andrzej L Dawidowicz, Małgorzata Olszowy-Tomczyk, Rafał Typek

Fitoterapia· July 2021

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Effect-directed analysis as a method for quality and authenticity estimation of Rhodiola rosea L. preparations.
Hanna Nikolaichuk, Rafał Typek, Sebastian Gnat, Marek Studziński, Irena Maria Choma

J Chromatogr A· July 2021

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Conversion of cannabidiol (CBD) to Δ9-tetrahydrocannabinol (Δ9-THC) during protein precipitations prior to plasma samples analysis by chromatography - Troubles with reliable CBD quantitation when acidic precipitation agents are applied.
Michal P Dybowski, Andrzej L Dawidowicz, Rafal Typek, Michal Rombel

Talanta· December 2020

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