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Espectroscopia Raman amplificada por superfície associada à cromatografia em camada delgada para análise de amostras alimentícias
(Universidade Federal de São Carlos, 2018-04-13)
Surface enhancement Raman spectroscopy (SERS) presents the advantages of conventional Raman spectroscopy with the possibility to detect compounds in low levels due to the enhancement on Raman intensity, generated by the ...
Desafios na análise de benzofenonas em leite materno por injeção direta de amostras usando cromatografia líquida hifenada à espectrometria de massa
(Universidade Federal de São Carlos, 2018-08-30)
As a solution to the paradigm of achieving maximum efficiency in a shorter analysis time, Ultra High-performance Liquid Chromatography (UHPLC) coupled to mass spectrometry (MS / MS) have been successfully explored. The ...
Avaliação do comportamento de BTEX e seus metabólitos de biodegradação em solos: estudos de remedição em microcosmos
(Universidade Federal de São Carlos, 2015-08-28)
The monoaromatic hydrocarbons composed by benzene, toluene, ethylbenzene and xylenes isomers (BTEX), are commonly found near local oil refineries, filling stations, or around pipelines, as a result ofleaks and/or spills. ...
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 ...
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 ...
Desenvolvimento de genossensores utilizando microbalança de cristal de quartzo e técnicas eletroquímicas
(Universidade Federal de São Carlos, 2011-02-18)
The proliferation of toxic algae in different oceans leads to great economic losses and environmental damage the mortality of marine animals such as mollusks and fish due to neurotoxins that they release into the environment. ...
Estratégias quimiométricas para análise de plantas por espectrometria de emissão óptica com plasma induzido por laser
(Universidade Federal de São Carlos, 2010-12-08)
A simultaneous optimization strategy based on neuro-genetic approach is proposed for selection of operational parameters for the simultaneous determination of macronutrients (Ca, Mg and P), micronutrients (B, Cu, Fe, Mn ...
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 ...
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 ...