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
Pesticide Poisoning of Honeybees: A Review of Symptoms, Incident Classification, and Causes of Poisoning
Kiljanek, Tomasz, Niewiadowska, Alicja, Posyniak, Andrzej
Analytical strategy for determination of chloramphenicol in different biological matrices by liquid chromatography - mass spectrometry
Śniegocki, Tomasz, Gbylik-Sikorska, Małgorzata, Posyniak, Andrzej
Simultaneous Determinaton of Fluoroquinolones in Feed by Liquid Chromatography with Fluorescence Detection
Gbylik, Małgorzata, Posyniak, Andrzej, Gajda, Anna
LC-MS/MS analysis of doxycycline residues in chicken tissues after oral administration
Gajda, Anna, Posyniak, Andrzej, Tomczyk, Grzegorz
In vivo study of the oestrogenic activity of milk
Radko, Lidia, Posyniak, Andrzej
Occurrence of Veterinary Antibiotics and Chemotherapeutics in Fresh Water, Sediment, and Fish of the Rivers and Lakes in Poland
Gbylik-Sikorska, Małgorzata, Posyniak, Andrzej, Mitrowska, Kamila, Gajda, Anna, Błądek, Tomasz, Śniegocki, Tomasz, Żmudzki, Jan
Confirmatory method for the determination of nitroimidazoles in milk by liquid chromatography - tandem mass spectrometry
Mitrowska, Kamila, Antczak, Maja, 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