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High-throughput Screening for Multi-class Veterinary Drug Residues in Animal Muscle Using Liquid Chromatography/tandem Mass Spectrometry with On-line Solid-phase Extraction by Hubert Po-on Tang; Clare Ho; Shirley Sau-ling Lai is a Chemistry article available to read on EtoBox.

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## Abstract A rapid qualitative method using on‐line column‐switching liquid chromatography/tandem mass spectrometry (LC/MS/MS) was developed and validated for screening 13 target veterinary drugs: four macrolides – erythromycin A, josamycin (leucomycin A3), kitasamycin (leucomycin A5), and tylosin A; six (fluoro)quinolones – ciprofloxacin, danofloxacin, enrofloxacin, flumequine, oxolinic acid, and sarafloxacin; and lincomycin, virginiamycin M1, and trimethoprim in different animal muscles. Clindamycin, norfloxacin, nalidixic acid, oleandomycin, ormetoprim, and roxithromycin were used as the internal standards. After simple deproteination and analyte extraction of muscle samples using acetonitrile, the supernatant was subjected to on‐line cleanup and direct analysis by LC/MS/MS. On‐line cleanup with an extraction cartridge packed with hydrophilic‐hydrophobic polymer sorbent followed by fast LC using a short C18 column resulted in a total analysis cycle of 6 min for 19 drugs. This screening method considerably reduced the time and the cost for the quantitative and confirmatory analyses. The application of a control point approach was also introduced and explained. Copyright © 2006 J

Who reads High-throughput Screening for Multi-class Veterinary Drug Residues in Animal Muscle Using Liquid Chromatography/tandem Mass Spectrometry with On-line Solid-phase Extraction?

Author

Hubert Po-on Tang; Clare Ho; Shirley Sau-ling Lai

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0951-4198)

Published

2006

Language

EN

Field

Chemistry (Physical Sciences)