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Determination of the metabolites of nitrofuran antibiotics in animal tissue by high-performance liquid chromatography-tandem mass spectrometry.
A LC-MS-MS method is presented to analyse simultaneously the metabolites of four nitrofuran antibacterial agents, furazolidone, furaltadone, nitrofurazone and nitrofurantoin in animal muscle tissue.Expand
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Separation of enantiomers: needs, challenges, perspectives.
Chiral drugs, agrochemicals, food additives and fragrances represent classes of compounds with high economic and scientific potential. First the present implications of their chiral nature andExpand
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Metabolic profiles of the mycotoxin zearalenone and of the growth promoter zeranol in urine, liver, and muscle of heifers.
A group of five heifers were fed for 84 days with 2 kg of zearalenone-contaminated oats (1370 microg/kg) resulting in an average daily intake of 2740 microg of zearalenone per animal. In a parallelExpand
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Drug-protein binding sites. New trends in analytical and experimental methodology.
In the last few years, continuous progress in instrumental analytical methodology has been achieved with a substantial increase in the number of new, more specific and more flexible methods forExpand
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Concentration levels of zearalenone and its metabolites in urine, muscle tissue, and liver samples of pigs fed with mycotoxin-contaminated oats.
The content of zearalenone and its metabolites in urine and tissue samples from pigs fed zearalenone-contaminated oats was established by analytical methods combining solid-phase extraction cleanupExpand
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Comparison of methods for the determination of ochratoxin A in wine
Abstract Different analytical methods for the determination of ochratoxin A (OTA) in wine have been compared. Sample clean-up was based on solid-phase extraction (SPE) with (i) immunoaffinity or (ii)Expand
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Oxidized Phospholipids Are More Potent Antagonists of Lipopolysaccharide than Inducers of Inflammation
Polyunsaturated fatty acids are precursors of multiple pro- and anti-inflammatory molecules generated by enzymatic stereospecific and positionally specific insertion of oxygen, which is aExpand
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Metabolic profiling of intracellular metabolites in fermentation broths from beta-lactam antibiotics production by liquid chromatography-tandem mass spectrometry methods.
An analytical platform comprising three LC-ESI-MS/MS methods is presented for qualitative and quantitative profiling of more than 200 intracellular metabolites. Employing a silica based zwitterionicExpand
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Concept of sequential analysis of free and conjugated phytosterols in different plant matrices.
A unique concept and method for the determination of the total plant sterol content as sum of free sterols (FS), steryl esters (SE), steryl glycosides (SG) and acylated steryl glycosides (ASG) inExpand
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