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Eletrodo de diamante dopado com boro para a determinação voltamétrica/amperométrica de antihelmínticos e anti-hipertensivos
(Universidade Federal de São Carlos, 2014-06-27)
In this work it was developed, firstly, one method for determination of anthelmintic albendazole (ABZ) using differential pulse voltammetry (DPV) and the boron doped diamond (BDD) electrode catholically pretreated (BDD-CPT). ...
Análise foliar de plantas por espectrometria de emissão óptica com plasma induzido por laser (LIBS) e com plasma acoplado indutivamente após ablação com laser (LA-ICP OES)
(Universidade Federal de São Carlos, 2013-09-20)
It has been demonstrated that laser induced breakdown spectrometry (LIBS) can be used as an alternative method for the determination of macro (P, K, Ca, Mg) and micronutrients (B, Fe, Cu, Mn, Zn) in pellets of plant ...
Produção e caracterização de material de referência de forrageira para nutrientes e contaminantes inorgânicos
(Universidade Federal de São Carlos, 2013-04-12)
The main aim of this work was to produce a candidate material for national reference material, the forage Brachiaria brizantha Stapf. cv. Marandu, containing known levels of contaminants (Cr, Pb, Cd, and As) and macro and ...
Tratamento metrológico e quimiométrico de dados de ressonância magnética nuclear para amostras de biodiesel em diesel
(Universidade Federal de São Carlos, 2012-03-29)
The development of instrumentation in Nuclear Magnetic Resonance (NMR) increased the sensitivity of the technique, allowing samples in micro and nanogram scale can be examined. These new technologies enabled the NMR technique ...
Especiação química de As e Cd por HPLC-ICP-MS em forrageira Brachiaria brizantha Stapf. cv. Marandu cultivada em solo previamente contaminado
(Universidade Federal de São Carlos, 2014-03-21)
Recent research and advances in analytical chemistry show that the total content determination of an element, although it is essential, is limited since it is not sufficient to provide information about the bioavailability ...
Estratégias espectroanalíticas para análise química inorgânica de plantas medicinais
(Universidade Federal de São Carlos, 2014-12-01)
This thesis describes the development of analytical procedures based on direct solid analysis by high-resolution continuum source atomic absorption spectrometry in graphite furnace (SS-HR-CS GF AAS) and aqueous solutions ...
Contaminantes emergentes: ocorrência e distribuição espaço-temporal no rio do Monjolinho e avaliação da remoção pela estação de tratamento de esgotos de São Carlos
(Universidade Federal de São Carlos, 2015-03-27)
This work aimed to investigate the occurrence of 12 emerging contaminants (pharmaceuticals, hormones and triclosan) in samples of influents and effluents, as well the removal in the sewage treatment plant (STP) of São ...
Especiação de metais e sua interação com a matéria orgânica dissolvida em um reservatório artificial
(Universidade Federal de São Carlos, 2010-05-28)
Environmental degradation of aquatic ecosystems stimulates investigations about the interactions between dissolved organic matter, trace metals and the biota. This study aimed to investigate the speciation of cadmium, ...
Estratégias analíticas para a avaliação química de solos e liquens da Antártica marítima
(Universidade Federal de São Carlos, 2011-08-12)
The aim of this PhD thesis is the ample study of soil and lichen samples from Antarctica, collected in regions under strong anthropogenic impact. Surface soil samples were collected around several scientific stations: ...
Desenvolvimento de eletrodos de carbono vítreo modificados com nanotubos de carbono funcionalizados imobilizados em filmes de hidrocloreto de poli(alilamina) para determinação de fármacos
(Universidade Federal de São Carlos, 2011-02-18)
Research involving carbon nanotubes (CNT) have a great attraction since its synthesis to the technology application. As part of the work was studied the formation and the stability of a functionalized Multiwall Carbon ...