Upper Midwest Environmental Sciences Center
Liquid chromatographic determination of benzocaine and N-acetylbenzocaine in the edible fillet tissue from rainbow trout
Meinertz, J. R., Stehly, G. R., Hubert, T. D., and Bernardy, J. A., 1999, Liquid chromatographic determination of benzocaine and N-acetylbenzocaine in the edible fillet tissue from rainbow trout: Journal of Chromatography A, v. 855, no. 1, p. 255-260.
Abstract
A method was developed for determining benzocaine and N-acetylbenzocaine concentrations in fillet tissue of rainbow trout. The method involves extracting the analytes with acetonitrile, removing lipids or hydrophobic compounds from the extract with hexane, and providing additional clean-up with solid-phase extraction techniques. Analyte concentrations are determined using reversed-phase high-performance liquid chromatographic techniques with an isocratic mobile phase and UV detection. The accuracy (range, 92 to 121%), precision (R.S.D., <14%), and sensitivity (method quantitation limit, <24 ng/g) for each analyte indicate the usefulness of this method for studies characterizing the depletion of benzocaine residues from fish exposed to benzocaine.
Keywords
fish, food analysis, benzocaine, acetylbenzocaine, BASS
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://umesc.usgs.gov/documents/publications/1999/meinertz_b_1999.html
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