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Mostrando ítems 21-30 de 35
Avaliação da viabilidade da determinação de cobalto e cromo em alimentos por espectrometria de absorção atômica com forno tubular na chama e aerossol térmico (TS-FF-AAS).
(Universidade Federal de São Carlos, 2006-02-23)
In this work, a nickel tube used as atomization cell and a ceramic capillary for thermospray generation (TS-FF-AAS) were employed to increase the analytical performance of the flame atomic absorption spectrometry (FAAS). ...
Desenvolvimento de procedimentos para análise inorgânica de biodiesel usando técnicas espectroanalíticas
(Universidade Federal de São Carlos, 2010-08-25)
In this work, analytical procedures are proposed for the determination of major and trace elements in biodiesel samples employing flame atomic absorption spectrometry (F AAS), inductively coupled plasma optical emission ...
Desenvolvimento e aplicação de eletrodos compósitos à base de borracha de silicone e grafite.
(Universidade Federal de São Carlos, 2004-10-21)
Composite electrodes were prepared using graphite powder and silicone rubber in different compositions. The use of such hydrophobic materials interned to diminish the swallowing observed in other cases when the electrodes ...
Emprego de imagens hiperspectrais e espectrometria de emissão em plasma introduzido por laser na análise direta de amostras de lixo eletrônico
(Universidade Federal de São Carlos, 2015-02-27)
In this study, laser induced breakdown spectroscopy was combined with chemometric
tools to study the chemical composition of WEEE discarded. For this, three
samples of printed circuit board were chosen for analysis: PCBs ...
Desenvolvimento de um imunossensor descartável acoplado a um sistema microfluídico para determinação de um biomarcador tumoral
(Universidade Federal de São Carlos, 2016-02-19)
Breast cancer is the most common type of cancer among women and results in 70% of cases of estrogen receptor alpha (ERα)
overexpression, a tumor biomarker. In the present study we developed a
sensitive and low cost ...
Proposição de modelos de regressão para previsão de propriedades de tintas da cadeia produtiva da indústria gráfica
(Universidade Federal de São Carlos, 2019-07-30)
Quality control of inks is very important during and after the manufacturing process and is also meaningful in the consumer industries or paint applicators. For this reason, an opportunity was noticed for the development ...
Avaliação da geração de Hg(0) em reator anaeróbio de fluxo ascendente de ETE
(Universidade Federal de São Carlos, 2018-10-26)
Mercury is a metal of high mobility and toxicity in the environment. The understanding of different aspects about its biogeochemical cycle is of fundamental importance for the management of this global pollutant. Different ...
Calibração multivias em Laser-Induced Breakdown Spectroscopy (LIBS) para determinação de Ca, K e Mg em amostras de suplemento mineral para humanos
(Universidade Federal de São Carlos, 2021-03-25)
This work intends to present a new approach for modeling LIBS data resolved in time using multiway algorithms, aiming to achieve the advantage of second order. The algorithms evaluated in this study were: Multivariate Curve ...
Desenvolvimento de um compósito inseticida-fertilizante microencapsulado para promover o aumento de produtividade agrícola
(Universidade Federal de São Carlos, 2017-09-29)
The main objective of this work was to develop a bioinsecticide-fertilizer model for pest insect control, formulated with extract of Azadirachta indica A. Juss. and humic acids as polymer matrix and fertilizer agent. ...
Eletrodo de pasta de carbono modificado com solvente eutético profundo hidrofóbico e sua aplicação voltamétrica
(Universidade Federal de São Carlos, 2021-03-01)
In this work, the use of hydrophobic deep eutectic solvent was proposed for the modification of carbon paste electrodes. Different HDES were prepared using fatty acids: octanoic, decanoic, and dodecanoic acids, and ...