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Derivatization study of selected steroid compounds
HEHENBERGER, Anna
The aim of this bachelor thesis was to investigate the optimum reaction conditions of the enolisation-silylation derivatization of three selected steroid compounds by testing a variety of derivatization reagents, reaction temperatures and durations and to determine the stabilities of the generated derivatives.
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Application of passive sampling for the analysis of hormones in drinking water
Remerová, Martina ; Mravcová, Ludmila (referee) ; Čáslavský, Josef (advisor)
The thesis focuses on the use of passive sampling during an analysis of hormones in drinkable water. In the theoretical part there are described selected passive samplers and the sample of the type of POCIS is described at fuller length. The next chapter engages with steroid hormones and an input of estrogenic hormone into the environment. The thesis contains chapters dealing with possibilities of the determination of hormones in water. It is specialized on the analysis of drinkable and surface water. In the last chapter of the theoretical part there are introduced water works where samples for an experimental assessment were collected from. The experimental part of the thesis presents the specification of the extraction of analytes and an adjustment of used device. In the thesis there are specific calibrations for individual assessment of hormones. The results of the assessment for each collection point are ordered to a well-arranged table. Increased levels of targeted estrogens were not approved in most of sampling points.
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Hormones and their presence in environmental
Sučková, Tereza ; Dvořáková, Petra (referee) ; Vávrová, Milada (advisor)
This thesis deals with the issue of hormones in the environment and analytical methods for the determination of hormonal substances in water and soil ecosystems. The thesis includes an overview of important hormone groups (divided into categories according to their chemical structure) and basic information about properties of chosen hormones, their sources and impacts on the environment. The next focuses upon methods of determination of hormones in soil and water ecosystems. Finally, a standard operational manual for analysis of estrogens in surface water has been created and is provided herein.
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Hormones in waste waters
Petrušová, Pavlína ; Vávrová, Milada (referee) ; Čáslavský, Josef (advisor)
This bachelor thesis gives the overview of waste water contaminants of steroid hormones type. A short description of these compounds and of their physical-chemical properties is given and sources of these substances in the environment are characterized, as well as their impact on organisms The fate of these compounds and methods used for their isolation from environmental compartments methods of their final analysis are characterized.
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