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
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
The markers of stress in swine oral fluid
Giergiel, Marta, Olejnik, Małgorzata, Jabłoński, Artur, Posyniak, Andrzej
LC-MS/MS analysis of doxycycline residues in chicken tissues after oral administration
Gajda, Anna, Posyniak, Andrzej, Tomczyk, Grzegorz
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
Oxytetracycline Residues in Honey Analyzed by Liquid Chromatography with UV Detection
Gajda, Anna, Posyniak, Andrzej, Bober, Andrzej, Błądek, Tomasz, Żmudzki, Jan
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
Analytical Procedure for the Determination of Tulathromycin in Swine Plasma
Gajda, Anna, Posyniak, Andrzej, Błądek, Tomasz
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
Liquid chromatography – tandem mass spectrometry method for the determination of ten tetracycline residues in muscle samples
Gajda, Anna, Posyniak, Andrzej
Pesticide Poisoning of Honeybees: A Review of Symptoms, Incident Classification, and Causes of Poisoning
Kiljanek, Tomasz, Niewiadowska, Alicja, Posyniak, Andrzej