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Underivatized amino acids detection by anion-exchange chromatography coupled to a nanostructured detector
(2021-06-01)
This work reports the development of a fast and reliable amperometric sensor for the detection of amino acids. The detector was constructed using copper nanoparticles (CuNPs) supported on reduced graphene oxide (RGO) ...
Determinação de compostos sulfurados em amostras de asfalto de petróleo empregando cromatografia líquida com detecção pulso-amperométrica
(Universidade Federal de Santa MariaBrasilQuímicaUFSMPrograma de Pós-Graduação em QuímicaCentro de Ciências Naturais e Exatas, 2018-08-01)
Among the heteroatoms present in petroleum, sulfur stands out as being the most
abundant. Henceforth it can be found on many quantities in oil derivate, such as
Petroleum Asphalt Cement (CAP). The presence of organosulfur ...
Determinação de besilato de amlodipina e atenolol utilizando eletrodo de diamante dopado com boro e análise por injeção em batelada com detecção amperométrica
(Universidade Federal de UberlândiaBRPrograma de Pós-graduação em QuímicaCiências Exatas e da TerraUFU, 2016)
Estudo da presença de fármacos como adulterantes em suplementos alimentares empregando detecção amperométrica e voltamétrica
(Universidade Federal de Santa MariaBrasilQuímicaUFSMPrograma de Pós-Graduação em QuímicaCentro de Ciências Naturais e Exatas, 2018-02-28)
The use of food supplements grows around the world every day. In order to improve physical performance,
prevent disease, maintain and improve health, obtain and / or maintain desired body weight and still fill
nutritional ...
Especiação de enxofre orgânico em cimento asfáltico de petróleo e suas frações
(Universidade Federal de Santa MariaBrasilQuímicaUFSMPrograma de Pós-Graduação em QuímicaCentro de Ciências Naturais e Exatas, 2022-07-22)
The asphalt binder is composed mostly of aromatic hydrocarbons. However, the presence of sulfur in the matrices warrant special attention, since it stands out for being the major heteroatom. Sulfur compounds are known for ...
Electroactive sugars, organic acids and sugar alcohol analysis in wine using anion-exchange chromatography with electrochemical detection
(2019-06-01)
The present work describes an easy, rapid and sensitive alternative methodology for simultaneous detection of sugars (glucose, fructose and arabinose), organic acids (gluconic, glucuronic and glucaric acids) and sugar ...
Identification of fructooligosaccharides in different banana cultivars
(AMER CHEMICAL SOC, 2008)
Banana has been currently indicated as a good source of fructooligosaccharides (FOS), which are considered to be functional components of foods. However, significant differences in their amounts in bananas have been observed ...