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- W2084484589 abstract "Aminoglycosides (AGs) are a large and diverse group of antibiotics. Although AGs may cause side effects of nephrotoxicity and ototoxicity, they are still occasionally being used for the treatment of serious infections. In this study the development of a method is described for the quantitative determination and confirmation of seven aminoglycosides (and relevant isomers) and spectinomycin in animal tissues. The extraction was based on an extraction followed by a concentration and clean-up step using weak cation exchange solid phase extraction. The separation was performed by ion-pair liquid chromatography on a C18 column followed by mass spectrometric detection. The method was validated according to the EU requirements for a quantitative confirmatory method. Permethylated aminoglycosides (in-house synthesised internal standards) were used for accurate quantification. The accuracy of the analyses of AGs in kidney ranged from 94 to 111%, intra-day precision ranged between 2.5 and 7.4% (R.S.D.r) and inter-day precision ranged between 2.2 and 17.3% (R.S.D.RL, n = 21, MRL level). Accuracy (muscle tissue) varied from 83 to 128% with an intra-day precision between 2.2 and 17.3% (R.S.D.r, n = 7, MRL level). From the results it was concluded that the method was able to monitor MRL levels which ranged from 750 to 20,000 μg kg−1 for kidney and from 50 to 10,000 μg kg−1 for muscle tissue." @default.
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- W2084484589 date "2009-04-01" @default.
- W2084484589 modified "2023-09-27" @default.
- W2084484589 title "A generic method for the quantitative analysis of aminoglycosides (and spectinomycin) in animal tissue using methylated internal standards and liquid chromatography tandem mass spectrometry" @default.
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- W2084484589 doi "https://doi.org/10.1016/j.aca.2008.09.026" @default.
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