Results 61 to 70 of about 50,577 (283)

Multiplex biosensor immunoassays for antibiotics in the food chain [PDF]

open access: yes, 2009
The use of antibiotics in food-producing animals may result in unwanted residues in food products. The main objective of the present research was to study the development and application of fast and automated multiplex surface plasmon resonance (SPR ...
Haasnoot, W.
core  

Sulfonamide-Selective Ambient Mass Spectrometry Ion Source Obtained by Modification of an Iron Sheet with a Hydrophilic Molecularly Imprinted Polymer

open access: yes
We have described a sulfonamide-selective ambient ion source coupled with electrospray ionization mass spectrometry (ESI-MS) for selective extraction and determination of trace sulfonamide antibiotics.
Xiujuan Wang (50975)   +9 more
core   +1 more source

Pd-NHC catalyzed Suzuki–Miyaura couplings on 3-bromo-9H-pyrido[2,3-b]indole-6-sulfonamide

open access: yes, 2019
A series of novel α-carboline derivatives such as 3-aryl-9H-pyrido[2,3-b]indole-6-sulfonamides have been synthesized from the readily available low-cost raw material, benzotriazole which is subjected to nucleophilic aromatic substitution with 5-bromo-2 ...
Anusha Gokanapalli (6706187)   +5 more
core   +1 more source

Deprotektive Alkylierung: Eine Plattform zur Umsetzung von Alkoholen zu Aminen mittels Nonafluormesitylensulfonamiden

open access: yesAngewandte Chemie, EarlyView.
Die direkte Umwandlung von Alkoholen in tertiäre oder sekundäre Amine in einem Reaktionsschritt unter Verwendung von Nms‐Amiden wird beschrieben. Die Transformation zeichnet sich durch eine breite Toleranz gegenüber verschiedenen funktionellen Gruppen und eine hohe Stereospezifität aus, was ihre Eignung für die Synthese isotopenmarkierter Arzneimittel ...
Jakub Brześkiewicz   +3 more
wiley   +1 more source

Isolation and characterization of sulfonamide-degrading bacteria Escherichia sp. HS21 and Acinetobacter sp. HS51

open access: yes, 2011
With the intensive application of sulfonamides in aquaculture and animal husbandry and the increase of sulfonamides discharged into the environments, there is an increasing need to find a way to remediate sulfonamide-contaminated environments.
Ling-Xin Chen   +17 more
core   +1 more source

Photoelectrocatalytic Coupling of Chlorine Radicals Enhances Sulfonamide Antibiotic Degradation in Saline-Alkaline Waters in Cold-Water Fish Aquaculture

open access: yesFishes
The degradation of organic matter using TiO2 nanotube photocatalytic technology is limited by the short lifetime and diffusion radius of the generated hydroxyl radicals, decreasing the removal efficiency.
Qikai Liu   +6 more
doaj   +1 more source

Identification and synthesis of metabolites of the new antiglaucoma drug

open access: yesResearch Results in Pharmacology
Introduction: The determination of biotransformation products is an essential part of the preclinical trial of original medicines. These studies have not been conducted before for the new drug 5-[5-(trifluoromethyl)-1,2-oxazole-3-yl]-furan-2-sulfonamide.
Alexander L. Khokhlov   +8 more
doaj   +1 more source

Desenvolvimento e validação de método multirresíduo para determinação de resíduos de antimicrobianos em leite por CLAE-FL/DAD e CLAE-MS/MS [PDF]

open access: yes, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Programa de Pós-Graduação em Ciência dos Alimentos, Florianópolis, 2011Antimicrobianos são extensivamente empregados na medicina veterinária para prevenção e ...
Toaldo, Isabela Maia
core  

Residues of Tetracycline, Erythromycin, and Sulfonamides in Beef, Eggs, and Honey from Grocery Stores in Knoxville, Tennessee, USA: Failure of Cooking to Decrease Drug Concentrations

open access: yesVeterinary Sciences
This study evaluated the concentrations of tetracycline, erythromycin, and sulfonamide in beef, eggs, and honey products sold at grocery stores and whether standard cooking to 160 °F (71 °C) reduced the concentrations of antimicrobials spiked into the ...
Shamim Sarkar   +4 more
doaj   +1 more source

Natural Bond orbital Acetamide and Sulfonamide

open access: yes, 2020
In this theoretical study we used density functional theory to calculate the molecular structures of Sulfonamide and Acetamide Compounds C12H11NSO and C8H9NO.
Ali Rahmani   +10 more
core  

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