Use of a new LC-MS method for the determination of pyrrolizidine alkaloids in feeds
Ewelina Kowalczyk, Krzysztof Kwiatek
Development, in-house validation and application of a method using high-performance liquid chromatography with fluorescence detection (HPLC-FLD) for the quantification of 12 ergot alkaloids in compound feeds
Ewelina Kowalczyk, Krzysztof Kwiatek
Simultaneous determination of pyrrolizidine and tropane alkaloids in honey by liquid chromatography–mass spectrometry
Ewelina Kowalczyk, Krzysztof Kwiatek
Determination of Chlorotetracycline and Doxycycline in Medicated Feedingstuffs by Liquid Chromatography
Ewelina Patyra, Ewelina Kowalczyk, Krzysztof Kwiatek
Serological evidence of Erysipelothrix rhusiopathiae antibodies in wild boars (Sus scrofa) in Poland
Ewelina Barbara Czyżewska-Dors, Agata Augustyniak, Ewa Piekutowska-Nóżka, Joanna Jężak, Ewelina Kowalczyk, Artur Jabłoński
Use of glycerol triheptanoate as a marker for processed animal by-products - results from 2010–2024
Aleksandra Grelik, Ewelina Kowalczyk, Krzysztof Kwiatek
Screening method for the determination of selected tetracyclines in water by liquid chromatography with diode array detector
Ewelina Patyra, Ewelina Kowalczyk, Krzysztof Kwiatek
Pyrrolizidine alkaloids in honey: determination with liquid chromatography-mass spectrometry method
Ewelina Kowalczyk, Krzysztof Kwiatek