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Fractional composition of metal ions in humic gels
Potočková, Jana ; Gregorová, Eva (referee) ; Klučáková, Martina (advisor)
This thesis deals with bond strength of metal ions in humic gels. Several samples of humic acids were studied to consider influence of samples isolation process and their consequent characteristics on bond strength of metal ions in their complexes. Some functional groups was blocked by methylation at some samples. Amount of active functional groups in individual samples was determined by standard titration methods. Metal ions bound in humic complexes were divided into several fractions by extraction with different reagents (distilled water, 1M MgCl2, 1M HCl and 0,025M NH4EDTA). Two extraction methods were used: sequential and fractional. During the fractional extraction leaching of metal ions always proceeds in single agents from original komplex, whereas during the sequential extraction leaching proceeds gradually in all extraction agents in order according to rising afinity of agents, i.e. bond strength of metal ions in samples. Amount of metal ions in leaches after extractions was analysed by UV-VIS spektrometry.
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Bond strength of metal ions in humic gels
Potočková, Jana ; Sedláček, Petr (referee) ; Klučáková, Martina (advisor)
This thesis deals with the study of bond strength of Cu2+ ions in humic gels. Two methods of extraction were used during the study, sequential and fractional extractions. During the fractional extraction leaching of copper proceeds in single agents, whereas during the sequential extraction leaching proceeds gradually in all extraction agents. Destilled water, 1M MgCl2, 1M HCl and 0,025M NH4EDTA were applied like extraction reagents. Amounts of Cu2+ ions in leaches after extraction were measured by UV-VIS spectrometry. By using extractions was obtained the fractionation of Cu2+ ions according to bond strength in humic gel.
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Patient's compliance of dietary therapy in metabolic disease
Potočková, Jana ; Anděl, Michal (advisor) ; Dlouhý, Pavel (referee)
The goal of my bacalaureat thesis is an assessment of compliance of the patients with selected metabolic disorders treated by the diet. As an example of these disease most common civiliza- tion diseases as a diabetes mellitus, several types of hyperlipoproteinaemias and obesity were selected Treatment of these disorders is based mostly on the whole life regimen of the diet and life organization. Well accepted compliance is the basis for successful treatment and clinical compensation of mentioned diseases. The aim of my work was a proving of seven working hypotheses about compliance, attitude and sense to dietotherapy and questions determinated the influence to compliance assess- ment. Five hypotheses were confirmed and two ones refused. 128 respondents was included in the research group, included 40 patients with diabetes or obesity in the group with intensive intervention program, random selected group was consis- ted from 88 patients diabetes mellitus, hyperlipoproteinemias or obesity. The questionnaire was completed anonymously and computer program was used for statistical analysis and results demonstrated in tables and figures The positive changes of dietary regimen during the course of intensive intervention program were proved. Positive correlation between...
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Fractional composition of metal ions in humic gels
Potočková, Jana ; Gregorová, Eva (referee) ; Klučáková, Martina (advisor)
This thesis deals with bond strength of metal ions in humic gels. Several samples of humic acids were studied to consider influence of samples isolation process and their consequent characteristics on bond strength of metal ions in their complexes. Some functional groups was blocked by methylation at some samples. Amount of active functional groups in individual samples was determined by standard titration methods. Metal ions bound in humic complexes were divided into several fractions by extraction with different reagents (distilled water, 1M MgCl2, 1M HCl and 0,025M NH4EDTA). Two extraction methods were used: sequential and fractional. During the fractional extraction leaching of metal ions always proceeds in single agents from original komplex, whereas during the sequential extraction leaching proceeds gradually in all extraction agents in order according to rising afinity of agents, i.e. bond strength of metal ions in samples. Amount of metal ions in leaches after extractions was analysed by UV-VIS spektrometry.
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Bond strength of metal ions in humic gels
Potočková, Jana ; Sedláček, Petr (referee) ; Klučáková, Martina (advisor)
This thesis deals with the study of bond strength of Cu2+ ions in humic gels. Two methods of extraction were used during the study, sequential and fractional extractions. During the fractional extraction leaching of copper proceeds in single agents, whereas during the sequential extraction leaching proceeds gradually in all extraction agents. Destilled water, 1M MgCl2, 1M HCl and 0,025M NH4EDTA were applied like extraction reagents. Amounts of Cu2+ ions in leaches after extraction were measured by UV-VIS spectrometry. By using extractions was obtained the fractionation of Cu2+ ions according to bond strength in humic gel.
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