Veterinary Drug Detection in Pork and Milk


Using an Ultivo LC/TQ with a standard ESI ion source
This Application Note highlights a 10-minute analytical method for the precise
quantification of 12 regulated veterinary drug compounds in pork and milk. The
method uses an Agilent 1260 Infinity II Prime LC and an Agilent Ultivo triple
quadrupole LC/MS with an ESI source. The 12 veterinary drug compounds
selected for evaluation in this method have maximum residue limits (MRLs) up to
1,000 µg/kg as defined by global regulations, and need to be analyzed at levels up to
5× the MRL. The intuitive design and easy maintenance of Ultivo make the system
well suited for high-throughput detection of these veterinary drugs. Ground pork and
milk were chosen to represent broad matrices with high fat and water content. This
method exceeds the sensitivity requirements defined by global regulations, with high
precision (RSD% <14 %) for all veterinary drug compounds included in this method.

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