Control of residues of thyreostats in slaughter animals in Poland in 2011–2017
Barbara Woźniak, Iwona Matraszek-Żuchowska, Katarzyna Sielska, Sebastian Witek, Andrzej Posyniak, Krzysztof Niemczuk, Jan Żmudzki
Determination of the Thyreostats in Animal Feeding Stuffs Using Liquid Chromatography-Tandem Mass Spectrometry
Barbara Woźniak, Sebastian Witek, Iwona Matraszek-Żuchowska, Jan Żmudzki
Evaluation of the effect of surgical and immunological castration of male pigs on boar taint compounds in oral fluid and fat tissue by LC-MS/MS method
Barbara Woźniak, Piotr Cybulski, Artur Jabłoński, Sebastian Witek, Iwona Matraszek-Żuchowska
Determination of Zeranol and its Metabolites in Bovine Muscle Tissue with Gas Chromatography-Mass Spectrometry
Iwona Matraszek-Żuchowska, Barbara Woźniak, Jan Żmudzki
Determination of steroid esters in hair of slaughter animals by liquid chromatography with tandem mass spectrometry
Iwona Matraszek-Żuchowska, Barbara Woźniak, Katarzyna Sielska, Andrzej Posyniak
Liquid chromatographytandem mass spectrometry methods for determination of stanozolol and l6β-hydroxy-stanozolol in animal urine
Iwona Matraszek-Źuchowska, Alicja Kłopot, Katarzyna Sielska, Beata Korycińska, Sebastian Witek, Paulina Zdonek, Piotr Jedziniak
Determination of clostebol residues in the urine of slaughter animals using liquid chromatography–tandem mass spectrometry
Iwona Matraszek-Żuchowska, Alicja Kłopot, Justyna Grzelak, Paulina Zdonek
Levels of the natural hormones 17β-oestradiol and testosterone in serum of cattle: results from population studies in Poland
Barbara Woźniak, Sebastian Witek, Iwona Matraszek-Żuchowska, Alicja Kłopot, Andrzej Posyniak
Development of LC-MS/MS confirmatory method for the determination of testosterone in bovine serum
Barbara Woźniak, Iwona Matraszek-Żuchowska, Sebastian Witek, Andrzej Posyniak
Control of anabolic hormone residues in tissues of slaughter animals in Poland during the period of 2011–2015
Iwona Matraszek-Żuchowska, Barbara Woźniak, Alicja Kłopot, Sebastian Witek, Katarzyna Sielska, Andrzej Posyniak
Determination of natural progesterone levels in bovine serum using gas chromatography coupled with mass spectrometry
Iwona Matraszek-Żuchowska, Alicja Kłopot, Paulina Zdonek, Beata Korycińska, Justyna Grzelak
Determination of natural and synthetic oestrogens in surface water using gas chromatography-mass spectrometry
Barbara Woźniak, Alicja Kłopot, Iwona Matraszek-Żuchowska, Katarzyna Sielska, Jan Żmudzki