… Different substitutions, including the inclusion of fluorine residues, have derived from nalidixic
acid to … The first-generation quinolones (nalidixic acid and pipemidic acid) have activity on …

… This group includes nalidixic acid, oxolinic acid, piromidic acid, pipemidic acid and … in pure
form, and high performance liquid chromatography (HPLC) with UV detection at 254 nm for its …

… analysis was performed using liquid chromatography coupled … whole period of routine
analysis from 2012 until 2017, the … also of vitamin and mineral premixes, milk replacers and feed …

… methods, while liquid chromatography coupled to tandem mass … main nitrofurans used for
therapeutic purposes: furazolidone (3-([(5… A method of analysis of total nitrofurans that does not …

… It has also been widely used in the form of premixed food … A total of five species of Aspergillus
fungi were isolated from … tissue by high-performance liquid chromatography– tandem …

… An ultra-performance liquid chromatography–tandem mass spectrometry (UPLC-MS/MS)
multi-class method was developed and validated for the determination of 27 antibiotic residues …

… drugs, liquid chromatography … analysis, a previously analyzed premix for turkey feed without
any of the analytes was used as blank sample. Before the extraction procedure, the whole …

… being patient with me as I was trying to finish up my research. … , analysis of antibiotic residues
by liquid chromatography … as oxolinic acid and nalidixic acid, and fluorinated quinolones, …

… of fluorine residues, have derived from nalidixic acid to the fluorinated quinolones. Some
of … , this total online FAE-μ-SPEHPLC method not only simplifies the operation process, but …

… the farms.5, 6 The physical properties of drugs and premixes have an influence on the cross-…
whole, the method proved to be simple and suitable for the accurate and selective analysis …