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Desenvolvimento de procedimentos analíticos limpos para a determinação de cloreto e demanda química de oxigênio em águas.
(Universidade Federal de São Carlos, 2004-12-17)
The work here described deals with the development of clean analytical methods for
determination of chloride and chemical oxygen demand in water samples.
A flow injection spectrophotometric method was developed for
determining ...
Teores dos elementos químicos essenciais e tóxicos na rastreabilidade da carne bovina
(Universidade Federal de São Carlos, 2012-02-15)
The objective of this work was to develop methodologies for the determination of inorganic constituents in meat sample and the study of correlations between samples with chemical elements profile, especially Nelore samples ...
Avaliação da espectrometria de emissão óptica com plasma induzido por laser (LIBS) para a determinação de Ba, Cd, Cr e Pb em brinquedos
(Universidade Federal de São Carlos, 2010-11-17)
LIBS is a spectroanalytical technique that employs the microsampling by laser ablation and subsequent exitations for atoms, ions and molecular fragments presents in induced microplasm.This technique was evaluated for ...
Desenvolvimento de eletrodos modificados com Poli-1-aminonaftaleno e Poli-1,5-diaminonaftaleno e aplicação na determinação de analitos de interesse farmacêutico
(Universidade Federal de São Carlos, 2010-11-18)
The aim of this work was to study the electrochemical response of the electrode modified with poly-1-aminonaphthalene (1-PAN) and poly-1 ,5- diaminonaphthalene (1,5-PDAN) for dopamine (DA), noradrenaline (NA) adrenaline ...
Estudo de procedimentos analíticos para determinação de Cr(III) e Cr(VI) em amostras sólidas.
(Universidade Federal de São Carlos, 2006-03-02)
The legislation is evolving towards the establishment of restrictions to the concentration of Cr(VI), the most toxic redox form of chromium, in solid materials. This aspect has stimulated the development of sample preparation ...
Synthesis of new cocrystal solid form of fluconazole-fumaric acid
(Universidade Federal de São Carlos, 2015-09-29)
Pharmaceutical cocrystals are multicomponent crystalline solids comprised of
an active pharmaceutical ingredient (API) and one or more co-formers
interacting through hydrogen bonding or other weak interactions like the ...
Desenvolvimento de procedimentos automáticos para determinação de etanol, glicerol e ácido tartárico em vinho empregando multicomutação em fluxo.
(Universidade Federal de São Carlos, 2004-08-18)
In the present work, flow systems for the determination of ethanol, glycerol and
tartaric acid in wine without previous sample treatment are described. The flow
system were based on multicommutation and controlled by ...
Análise em fluxo e análise in situ como estratégias de melhoramento da seqüência analítica de amostras agronômicas.
(Universidade Federal de São Carlos, 2005-04-06)
The
present work discusses the use of alternative approaches for the improvement of the
agronomic sample analytical pathway. It was focused on the elimination of the
sampling step, with the in situ soil analysis, or in the ...
Desenvolvimento de minissensores de filme de bismuto para a determinação voltamétrica in loco de atrazina, diquat e paraquat em águas naturais
(Universidade Federal de São Carlos, 2011-02-25)
The development of bismuth film electrodes (BiFE) and minissensors/BiFE for application to the development of electroanalytical procedures for determination of atrazine, Diquat and Paraquat using voltammetric techniques ...
Avaliação de parâmetros e produção de materiais de referência de suplemento mineral para nutrientes e contaminantes inorgânicos
(Universidade Federal de São Carlos, 2011-09-09)
This paper was prepared a material candidate for reference material for mineral mixture for dairy cattle. Shape certain analytes Ca, K, Na, P, Cu, Fe, Mn, Mg, Zn and contaminants As, Cd and Pb The material was crushed, ...