AI Article Synopsis
- The paper discusses a method for quantifying sulfadimethoxine (SDM) and ormetoprim (OMP) in fish feed and fillets using LC-MS/MS, ensuring the method's reliability through assessments outlined by Brazilian agricultural guidelines.
- The calibration for both drugs showed strong linearity (r > 0.99), good precision (CV < 12% for feed and CV < 16% for fillets), and high trueness (97%-100% for feed and around 100% for fillets).
- A new approach to drug incorporation in fish feed involved coating pellets with ethyl cellulose polymer, which minimized drug leaching into water during the feeding process, maintaining release levels below 6% after
Article Abstract
This paper describes the method development for sulfadimethoxine (SDM) and ormetoprim (OMP) quantitation in fish feed and fish fillet employing LC-MS/MS. In order to assess the reliability of the analytical method, valuation was undertaken as recommended by guidelines proposed by the Brazilian Ministry of Agriculture. The calibration curve for the quantification of both drugs in feed showed adequate linearity (r > 0.99), precision (CV < 12%) and trueness ranging from 97% to 100%. The method for the determination of SDM and OMP residues in fish fillet involved a simple sample preparation procedure that had adequate linearity (r > 0.99), precision (CV < 16%) and trueness around 100%, with CCα < 100.2 ng g and CCβ < 100.4 ng g. With a goal of avoiding the risk of drug leaching from feed into the aquatic environment during fish medication via the oral route, different procedures for drug incorporation into feed were evaluated. Coating feed pellets with ethyl cellulose polymer containing the drug showed promising results. In this case, medicated feed released drugs to water at a level below 6% when the medicated feed stayed in the water for up to 15 min.
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| http://dx.doi.org/10.1080/19440049.2016.1267875 | DOI Listing |
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