LC/MS confirmation of ionophores in animal feeds.

@article{Turnipseed2001LCMSCO,
  title={LC/MS confirmation of ionophores in animal feeds.},
  author={Sherri B Turnipseed and Jos{\'e} E Roybal and Allen P Pfenning and Steve A. Gonzales and Jeffrey A. Hurlbut and Mark R Madson},
  journal={Journal of AOAC International},
  year={2001},
  volume={84 3},
  pages={
          640-7
        }
}
A liquid chromatographic/mass spectrometric (LC/MS) electrospray confirmation method has been developed to confirm 4 ionophores (monensin, lasalocid, salinomycin, and narasin) in a variety of animal feeds using a single quadrupole mass spectrometer. The sodium ions of these compounds are dominant in the electrospray mass spectrum. Using optimized "in-source" collision induced dissociation, characteristic fragment ions seen previously using MS/MS can be observed. The drugs were extracted from… CONTINUE READING

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