Results 21 to 30 of about 113,455 (289)

Sulfonamides and trimethoprim [PDF]

open access: yesExpert Review of Anti-infective Therapy, 2009
Sulfonamides and trimethoprim are inexpensive and effective antibacterial drugs that have been used extensively. The use of sulfonamides for systemic use has, however, decreased dramatically for several years, mainly because of resistance development in pathogenic bacteria and allergic side effects. Also the clinical efficiency of trimethoprim has been
openaire   +3 more sources

Reductive cleavage of sulfones and sulfonamides by neutral organic super electron-donor (S.E.D.) reagent [PDF]

open access: yes, 2007
The sulfonyl group finds extensive applications in organic and medicinal chemistry both in sulfonamides, popular as robust protecting groups for amines, and in sulfones.
Miclo, Yves   +5 more
core   +1 more source

Development of a receptor based signal amplified fluorescence polarization assay for multi-detection of 35 sulfonamides in pork

open access: yesFood Chemistry: X, 2023
With the increasing focus on food security, a screening method with high-throughput, ultra-sensitivity, and user-friendly operation is urgently needed for monitoring of sulfonamides residues in animal-derived foods.
Tong He   +5 more
doaj  

A Green HPLC Method for Determination of Nine Sulfonamides in Milk and Beef, and Its Greenness Assessment with Analytical Eco-Scale and Greenness Profile.

open access: yesJournal of AOAC International, 2020
BACKGROUND Sulfonamides have been widely used in the prevention and clinical treatment of bacterial diseases in livestock and poultry. The use of sulfonamides increases the risk of veterinary drug residues in animal derived foods.
Xiaoyun Duan   +8 more
semanticscholar   +1 more source

Ecofriendly Synthesis in Aqueous Medium: An Expeditious Approach to New N,N-Diethyl Amide Bearing Benzenemethanesulfonamides [PDF]

open access: yes, 2013
An highly expeditious synthetic approach for the synthesis of benzenemethanesulfonamides (1a-k) and their new corresponding N,N-diethyl substituted amido moieties (2a-k) has been achieved in aqueous medium at room tem-perature. The reaction condition was
Ajani, O. O.   +3 more
core   +1 more source

Enzymatic Transformation and Bonding of Sulfonamide Antibiotics to Model Humic Substances

open access: yesJournal of Chemistry, 2015
Sulfonamides are consumed as pharmaceutical antibiotics and reach agricultural soils with excreta used as fertilizer. Subsequently, nonextractable residues rapidly form in soil, which has been researched in a couple of studies.
J. Schwarz   +3 more
doaj   +1 more source

Antibiotic residues and antibiotic-resistant bacteria in pig slurry used to fertilize agricultural fields [PDF]

open access: yes, 2020
Pig manure may contain antibiotic residues, antibiotic-resistant bacteria or pathogens, which may reach the environment upon fertilization. During this study, 69 antibiotic residues belonging to 12 classes were quantified in 89 pig slurry samples.
Colson, Lander   +9 more
core   +2 more sources

Synergistic toxicity of some sulfonamide mixtures on Daphnia magna [PDF]

open access: yes, 2018
In livestock farming, sulfonamides (SAs) are used prophylactically and simultaneously in large numbers of animals. Therefore, traces of these compounds, alone or in combination, have been repeatedly detected in the environment.
Alessia, Riga   +2 more
core   +1 more source

Automated Online Solid-Phase Extraction Coupled with Sequential Injection-HPLC-EC System for the Determination of Sulfonamides in Shrimp

open access: yesInternational Journal of Electrochemistry, 2012
The use of fully automated online solid-phase extraction (SPE) coupled with sequential injection analysis, high-performance liquid chromatography (HPLC), and electrochemical detection (EC) for the separation and determination of sulfonamides has been ...
Pimkwan Chantarateepra   +3 more
doaj   +1 more source

Recent Updates on the Synthesis of Bioactive Quinoxaline-Containing Sulfonamides

open access: yes, 2021
Quinoxaline is a privileged pharmacophore that has broad-spectrum applications in the fields of medicine, pharmacology and pharmaceutics. Similarly, the sulfonamide moiety is of considerable interest in medicinal chemistry, as it exhibits a wide range of
Ali Irfan   +7 more
semanticscholar   +1 more source

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