<abstract xmlns="http://www.w3.org/1999/xhtml">

<sec>
<h3>Introduction</h3>
<p>Sedatives have been used for a long time as animal tranquillisers to prevent stress and weight loss during their transportation. The proper determination of these substances in food of animal origin is essential for consumer safety.</p>
</sec>
<sec>
<h3>Material and Methods</h3>
<p>A 1 g portion of pig or cow urine or homogenised kidney was mixed with acetonitrile, sodium chloride was added, and the solution was further mixed and then centrifuged. The supernatant was transferred to a new centrifuge tube with primary and secondary amine, octadecylsilane and ZrO<sub>2</sub>, and mixed rapidly. The filtered solution was evaporated under a nitrogen stream. The residue was dissolved in 200 μL of acetonitrile, centrifuged with filters and then transferred to vials. Samples were analysed by high-performance liquid chromatography–tandem mass spectrometry.</p>
</sec>
<sec>
<h3>Results</h3>
<p>The decision limit for confirmation was calculated at 2.5 μg kg<sup>−1</sup> for all sedatives with relative standard deviation repeatability and reproducibility below 20%.</p>
</sec>
<sec>
<h3>Conclusion</h3>
<p>The validation results showed that this method meets the pertinent EU criteria for such methods and is suitable for sedative analysis in urine and kidney matrices.</p>
</sec>
</abstract>

Introduction
Sedatives have been used for a long time as animal tranquillisers to prevent stress and weight loss during their transportation. The proper determination of these substances in food of animal origin is essential for consumer safety.


Material and Methods
A 1 g portion of pig or cow urine or homogenised kidney was mixed with acetonitrile, sodium chloride was added, and the solution was further mixed and then centrifuged. The supernatant was transferred to a new centrifuge tube with primary and secondary amine, octadecylsilane and ZrO2, and mixed rapidly. The filtered solution was evaporated under a nitrogen stream. The residue was dissolved in 200 μL of acetonitrile, centrifuged with filters and then transferred to vials. Samples were analysed by high-performance liquid chromatography–tandem mass spectrometry.


Results
The decision limit for confirmation was calculated at 2.5 μg kg−1 for all sedatives with relative standard deviation repeatability and reproducibility below 20%.


Conclusion
The validation results showed that this method meets the pertinent EU criteria for such methods and is suitable for sedative analysis in urine and kidney matrices.

Development of a method for the determination of sedatives in bovine and porcine urine and kidneys by liquid chromatography–tandem mass spectrometry

Journal of Veterinary Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Introduction
Sedatives have been used for a long time as animal tranquillisers to prevent stress and weight loss during their transportation. The proper...

Development of a method for the determination of sedatives in bovine and porcine urine and kidneys by liquid chromatography–tandem mass spectrometry

Publicado en línea: 23 mar 2024

Páginas: 137 - 145

Recibido: 17 ago 2023

Aceptado: 04 ene 2024

DOI: https://doi.org/10.2478/jvetres-2024-0001

Palabras clave
sedatives, tranquillisers, QuEChERS, liquid chromatography–tandem mass spectrometry, Commission Implementing Regulation (EU) 2021/808

© 2024 Tomasz Śniegocki et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Development of a method for the determination of sedatives in bovine and porcine urine and kidneys by liquid chromatography–tandem mass spectrometry

Publicado en línea: 23 mar 2024

Páginas: 137 - 145

Recibido: 17 ago 2023

Aceptado: 04 ene 2024

DOI: https://doi.org/10.2478/jvetres-2024-0001

Palabras clavesedatives, tranquillisers, QuEChERS, liquid chromatography–tandem mass spectrometry, Commission Implementing Regulation (EU) 2021/808

© 2024 Tomasz Śniegocki et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Palabras clave
sedatives, tranquillisers, QuEChERS, liquid chromatography–tandem mass spectrometry, Commission Implementing Regulation (EU) 2021/808