Determination of natural and synthetic oestrogens in surface water using gas chromatography-mass spectrometry
Woźniak, Barbara, Kłopot, Alicja, Matraszek-Żuchowska, Iwona, Sielska, Katarzyna, Żmudzki, Jan
Natural Occurrence of Thiouracil in Urine of Livestock in Poland
Woźniak, Barbara, Witek, Sebastian, Żmudzki, Jan, Kłopot, Alicja
Levels of the natural hormones 17β-oestradiol and testosterone in serum of cattle: results from population studies in Poland
Woźniak, Barbara, Witek, Sebastian, Matraszek-Żuchowska, Iwona, Kłopot, Alicja, Posyniak, Andrzej
Liquid chromatographytandem mass spectrometry methods for determination of stanozolol and l6β-hydroxy-stanozolol in animal urine
Matraszek-Źuchowska, Iwona, Kłopot, Alicja, Sielska, Katarzyna, Korycińska, Beata, Witek, Sebastian, Zdonek, Paulina, Jedziniak, Piotr
Control of anabolic hormone residues in tissues of slaughter animals in Poland during the period of 2011–2015
Matraszek-Żuchowska, Iwona, Woźniak, Barbara, Kłopot, Alicja, Witek, Sebastian, Sielska, Katarzyna, Posyniak, Andrzej
Determination of natural progesterone levels in bovine serum using gas chromatography coupled with mass spectrometry
Matraszek-Żuchowska, Iwona, Kłopot, Alicja, Zdonek, Paulina, Korycińska, Beata, Grzelak, Justyna
Screening and confirmatory GC-MS methods for the detection of trenbolone in bovine urine
Woźniak, Barbara, Matraszek-Żuchowska, Iwona, Semeniuk, Stanisław, Kłopot, Alicja, Żmudzki, Jan
Determination of clostebol residues in the urine of slaughter animals using liquid chromatography–tandem mass spectrometry
Matraszek-Żuchowska, Iwona, Kłopot, Alicja, Grzelak, Justyna, Zdonek, Paulina