Chromatography

Reports from Food & Drug Administration add new data to research in chromatography

Published in Medical Device Law Weekly, July 26th, 2009

"A derivatization procedure Using phenyl isocyanate was adapted to liquid chromatography ion trap, mass spectrometry (LC-MSn) for confirmation and quantification of aminoglycoside residues ill milk. Aminoglycoside residues were extracted from milk with acid and isolated from the matrix with a weak cation exchange solid-phase extraction cartridge," investigators in the United States report.

"After isolating the compounds from the milk, derivatives of gentamicin, neomycin, and tobramycin were formed by reacting the drugs With phenyl isocyanate ill the presence of triethylamine. The analytes were separated using a dilute formic acid/acetonitrile gradient oil a...

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Source: Medical Device Law Weekly (2009-07-26)

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