Buscar
Mostrando ítems 41-46 de 46
Complexos de Cromo(III)-salen como catalisadores em reações de oxidação de sulfetos
(Universidade Federal de São Carlos, 2009-02-06)
Transition metal complexes participate in many chemical processes. The study of these complexes is very interesting because of the diversified chemistry and great utility. Transition metal complexes act as catalysts in ...
Preparação e caracterização de blendas de PANI/ABS
(Universidade Federal de São Carlos, 2009-03-16)
Polyaniline (PANI) chemical synthesis was monitored in situ by means of electrochemical impedance, open circuit potential (Voc) and mass variation. We verify that the final properties of the polymer could be practically ...
Estudo do processo de eletrodeposição e caracterização de ligas de Sn-Zn
(Universidade Federal de São Carlos, 2009-05-27)
This study evaluated the electrodeposition processes of Sn, Zn and Sn-Zn alloy in the absence and presence of tartaric acid as complexing agent. Initially all the systems studied were evaluated by Cyclic Voltammetry to ...
Análise de metabólitos secundários produzidos por fungos endofíticos associados à Cupressus lusitanica
(Universidade Federal de São Carlos, 2009-02-12)
Some phytopatogenic fungi found in Cupressus species produces phytotoxins very aggressive to the host plant. Surprisingly, these toxins are diterpenoids structures, as well as some endogenus metabolites in Cupressus species. ...
Estratégias para a determinação de minoxidil
(Universidade Federal de São Carlos, 2009-09-04)
In this work methods for determining minoxidil (MX) in commercial samples and electrolytes of synthetic plasma and urine are presented. The minoxidil is a pharmaceutical whose blood vessel dilation property is used in the ...
Estratégias de extração em química: substâncias húmicas em solos e cobre em cachaça
(Universidade Federal de São Carlos, 2009-01-22)
The goal of the extraction strategies here developed was to obtain final products with efficiency and reliability in a time interval as short as possible. The proposed methods are inexpensive and easily applied for different ...