Research Article

Validation of an UHPLC-MS/MS Method for Screening of Antimicrobial Residues in Eggs and Their Application to Analyses of Eggs from Laying Hens Subjected to Pharmacological Treatment

Figure 1

Chromatogram of a method blank-extraction with 5% trichloroacetic acid, without the addition of the egg matrix (a), to demonstrate the presence of an interferent compound from the TCA 5% solution and chromatogram of the egg matrix with the addition of the standard solutions of tetracyclines, aminoglycosides, quinolones, and lincosamides at the 0.75 MRL level (b).
(a)
(b)