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Showing 13-24 of 26 for the term ""Posyniak, Andrzej""

Liquid chromatography – tandem mass spectrometry method for the determination of ten tetracycline residues in muscle samples
Article

Liquid chromatography – tandem mass spectrometry method for the determination of ten tetracycline residues in muscle samples

Gajda, Anna, Posyniak, Andrzej
Effect of doxycycline concentrations in chicken tissues as a consequence of permanent exposure to enrofloxacin traces in drinking water
Article

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
Levels of the natural hormones 17β-oestradiol and testosterone in serum of cattle: results from population studies in Poland
Article

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
Control of anabolic hormone residues in tissues of slaughter animals in Poland during the period of 2011–2015
Article

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
Development of LC-MS/MS confirmatory method for the determination of testosterone in bovine serum
Article

Development of LC-MS/MS confirmatory method for the determination of testosterone in bovine serum

Woźniak, Barbara, Matraszek-Żuchowska, Iwona, Witek, Sebastian, Posyniak, Andrzej
Analytical strategy for determination of chloramphenicol in different biological matrices by liquid chromatography - mass spectrometry
Article

Analytical strategy for determination of chloramphenicol in different biological matrices by liquid chromatography - mass spectrometry

Śniegocki, Tomasz, Gbylik-Sikorska, Małgorzata, Posyniak, Andrzej
Simultaneous determination of ten illegal azo dyes in feed by ultra-high performance liquid chromatography tandem mass spectrometry
Article

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
Control of residues of thyreostats in slaughter animals in Poland in 2011–2017
Article

Control of residues of thyreostats in slaughter animals in Poland in 2011–2017

Woźniak, Barbara, Matraszek-Żuchowska, Iwona, Sielska, Katarzyna, Witek, Sebastian, Posyniak, Andrzej, Niemczuk, Krzysztof, Żmudzki, Jan
Development of a UHPLC-MS/MS method for the determination of quercetin in milk and its application to a pharmacokinetic study
Article

Development of a UHPLC-MS/MS method for the determination of quercetin in milk and its application to a pharmacokinetic study

Gbylik-Sikorska, Małgorzata, Gajda, Anna, Burmańczuk, Artur, Grabowski, Tomasz, Posyniak, Andrzej
Determination of steroid esters in hair of slaughter animals by liquid chromatography with tandem mass spectrometry
Article

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
A preliminary study of the poultry body weight effect of carvacrol in litter and of carvacrol residue in organ tissue of exposed chickens
Article

A preliminary study of the poultry body weight effect of carvacrol in litter and of carvacrol residue in organ tissue of exposed chickens

Śniegocki, Tomasz, Raszkowska-Kaczor, Aneta, Bajer, Krzysztof, Sell, Bartosz, Kozdruń, Wojciech, Giergiel, Marta, Posyniak, Andrzej
Analysis of β-agonists in different biological matrices by liquid chromatography–tandem mass spectrometry
Article

Analysis of β-agonists in different biological matrices by liquid chromatography–tandem mass spectrometry

Śniegocki, Tomasz, Sell, Bartosz, Posyniak, Andrzej