Results 121 to 130 of about 726 (164)

Simultaneous separation of nitrofuran antibiotics and their metabolites by using micellar electrokinetic capillary chromatography

open access: yesElectrophoresis, 2006
AbstractMixtures comprising nitrofuran antibiotics (NFA) and nitrofuran metabolites (NFM) were resolved for the first time by using MEKC. Sodium deoxycholate (SDC) was chosen as the micelle‐forming surfactant. Optimization of separation conditions was achieved by using a central composite experimental design (CCD) approach. Experimental parameters such
Jeff G Hughes   +2 more
exaly   +4 more sources

The occurrence of nitrofuran metabolites in the tissues of chickens exposed to very low dietary concentrations of the nitrofurans

open access: yesFood Additives and Contaminants, 2005
The global problem of food products contaminated by residues of the banned carcinogenic nitrofuran drugs has prompted research into how such residues accumulate in tissues. In the study described here, two aspects have been investigated where the nitrofurans accumulate in tissues from chickens exposed to either a dietary or an environmental source of ...
McCracken, R.J.   +2 more
core   +5 more sources

Nitrofuran antibiotic metabolites detected at parts per million concentrations in retina of pigs—a new matrix for enhanced monitoring of nitrofuran abuse

open access: yesThe Analyst, 2005
Nitrofuran metabolite residues AOZ, AMOZ, AHD and SEM were detected at parts per million concentrations in retina of pigs fed therapeutic doses of nitrofuran antibiotics. Discovery of this residue depot may allow widespread technology transfer to laboratories lacking LC-MS/MS thus improving global monitoring of these drugs.
Cooper, K M, Kennedy, D G
openaire   +4 more sources

Determination of nitrofuran metabolites in poultry muscle and eggs by liquid chromatography-tandem mass spectrometry

Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences, 2005
The use of nitrofurans in food-producing animals has been banned in EU. Detection of the protein-bound nitrofuran metabolites is the best approach to evaluate their utilization. A fast, sensitive and reliable LC-MS-MS method is presented to analyze simultaneously the metabolites of four commonly used nitrofuran drugs, furazolidone, furaltadone ...
Gilberto De Nucci
exaly   +3 more sources

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