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
Influence of dietary soy isoflavones on immature hamster uterotrophic and Hershberger assays
Maria Minta, Lidia Radko, Sylwia Stypuła-Trębas, 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
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
Natural Occurrence of Thiouracil in Urine of Livestock in Poland
Barbara Woźniak, Sebastian Witek, Jan Żmudzki, Alicja Kłopot
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 and synthetic oestrogens in surface water using gas chromatography-mass spectrometry
Barbara Woźniak, Alicja Kłopot, Iwona Matraszek-Żuchowska, Katarzyna Sielska, Jan Żmudzki
Screening and confirmatory GC-MS methods for the detection of trenbolone in bovine urine
Barbara Woźniak, Iwona Matraszek-Żuchowska, Stanisław Semeniuk, Alicja Kłopot, Jan Żmudzki