LC-MS/MS analysis of doxycycline residues in chicken tissues after oral administration
Gajda, Anna, Posyniak, Andrzej, Tomczyk, Grzegorz
Effect of doxycycline concentrations in chicken tissues as a consequence of permanent exposure to enrofloxacin traces in drinking water
Gbylik-Sikorska, Małgorzata, Posyniak, Andrzej, Śniegocki, Tomasz, Sell, Bartosz, Gajda, Anna, Tomczyk, Grzegorz, Żmudzki, Jan
Development of LC-MS/MS confirmatory method for the determination of testosterone in bovine serum
Woźniak, Barbara, Matraszek-Żuchowska, Iwona, Witek, Sebastian, Posyniak, Andrzej
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
Analysis of β-agonists in different biological matrices by liquid chromatography–tandem mass spectrometry
Śniegocki, Tomasz, Sell, Bartosz, Posyniak, Andrzej
Analytical Procedure for the Determination of Tulathromycin in Swine Plasma
Gajda, Anna, Posyniak, Andrzej, Błądek, Tomasz
Determinaton of enrofloxacin and ciprofloxacin in albumin and freeze-dried-eggs by liquid chromatography with fluorescence detection
Gbylik-Sikorska, Małgorzata, Posyniak, Andrzej, Gajda, Anna, Błądek, Tomasz
Simultaneous determination of ten illegal azo dyes in feed by ultra-high performance liquid chromatography tandem mass spectrometry
Piątkowska, Marta, Jedziniak, Piotr, Olejnik, Małgorzata, Pietruk, Konrad, Żmudzki, Jan, Posyniak, Andrzej
Determination of steroid esters in hair of slaughter animals by liquid chromatography with tandem mass spectrometry
Matraszek-Żuchowska, Iwona, Woźniak, Barbara, Sielska, Katarzyna, Posyniak, Andrzej
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
In-House Reference Material of Chloramphenicol in Pig Muscle
Śniegocki, Tomasz, Żmudzki, Jan, Posyniak, Andrzej, Sell, Bartosz
Multi-Class Procedure for Analysis of Antibacterial Compounds in Eggs by Liquid Chromatography-Tandem Mass Spectrometry
Błądek, Tomasz, Posyniak, Andrzej, Gajda, Anna, Gbylik, Małgorzata, Żmudzki, Jan