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Now showing items 21-28 of 28
Influência de íons metálicos na estrutura de substâncias húmicas detectados por espectroscopia.
(Universidade Federal de São Carlos, 2005-03-23)
INFLUENCE OF METAL CATIONS IN THE STRUCTURE OF
HUMIC SUBSTANCES AS DETECTED BY SPECTROSCOPY, involves a
study by which starting from precursors of humic substances, some polymers
were obtained, characterized and comparable ...
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 ...
Desenvolvimento de método analítico com emprego da espectrometria de absorção atômica para a determinação de Cd, Fe, Pb e Zn em amostras de interesse alimentício
(Universidade Federal de São Carlos, 2008-07-31)
Analytical chemistry plays a fundamental role in proposing fast and reliable procedures to analyze food samples. Proper selection and introduction of complementary foods reduces the vulnerability to micronutrient deficiencies. ...
Determinação e fracionamento de bário em castanha-do- Pará
(Universidade Federal de São Carlos, 2007-08-30)
In this work it was studied the determination and fractionation of barium in Brazil nuts employing several strategies for sample preparation and spectroanalytical techniques, i.e. graphite furnace atomic absorption ...
Análise química de materiais cerâmicos : digestão por fusão e medidas por ICP OES com configuração axial
(Universidade Federal de São Carlos, 2007-10-26)
Ceramic samples are efficiently digested using fusion procedures. However the elevated amounts of dissolved solids in the resulting solutions may cause spectral and transport
interferences, affect the analytical blanks ...
Estratégias para a determinação de minoxidil
(Universidade Federal de São Carlos, 2005-07-25)
Methods for the determination of minoxidil in commercial samples are presented. The minoxidil is a pharmaceutical whose dilation blood vessel property is used in the treatment of the Arterial Hypertension and in the treatment ...
Avaliação das condições operacionais de espectrômetro de emissão óptica com plasma acoplado indutivamente com configuração axial
(Universidade Federal de São Carlos, 2007-02-23)
The goal of this thesis was the critical
evaluation of the analytical capability of an inductively coupled plasma spectrometer
(ICP OES) with axially viewed configuration. The general view that axially systems are mainly ...
Definição de metodologias para determinação de ferro em sangue de bovinos resistentes e sensíveis a carrapatos
(Universidade Federal de São Carlos, 2007-06-22)
Different forms of iron had been determined in the blood of animals with resistance and sensitivity to bovine s ticks. The determined variables were: Iron in total, plasma and serum blood, quantified by flame atomic ...