National Repository of Grey Literature 8 records found  Search took 0.01 seconds. 
Determination of selected musk compounds in biotic samples
Blahová, Eliška ; Čáslavský, Josef (referee) ; Vávrová, Milada (advisor)
Musk compounds (MUSK) or synthetic fragrances are organic substances commonly used as fragrant constituents of detergents, soaps, cosmetics, personal care products, industrial and in-house cleaning agents, industrial plasticizers, chewing tobacco and fresheners. The big attention is pushed ahead studying these compounds, their fate in different parts of ecosystems and studying their characteristics at present, because musks infiltrate many environmental components, particularly aquatic and marine ecosystems, through their large application and their ability to be perzistant. This diploma thesis was focused on four synthetic “classical” fragrances used over the world. The aim of this study was to perform a method optimisation for the determination of selected fragrances in biotic matrix. There was made an evalution of ability of selected water treatment plant to clear away musks from water, these results were used for evaluating contamination measurement of aquatic ecosystem. The identification and quantification of analytes was carried out by high resolution gas chromatography - mass spectrometry (HRGC/MS).
Use of mass spectrometry and separation techniques for determination of different metal species in food
Křížová, Soňa ; Vitoulová, Eva (referee) ; Diviš, Pavel (advisor)
This work deals with combination of ICP-MS (inductively coupled plasma mass spectrometry) and various types of chromatographic separation methods for speciation analysis of metals in foodstuffs. The basic information of instrumental analytical techniques and ICP-MS are discussed. The most contained metals in foodstuffs and ways of contamination are developed. Speciation analysis of metals and different forms of metals in biological materials are considered.
Evaluation of occurence of musk compounds in water ecosystem
Tobková, Lenka ; Zouhar, Libor (referee) ; Vávrová, Milada (advisor)
This bachelor’s thesis is concerned with synthetic musk compounds and their presence in the environment, particularly in water ecosystem. The thesis contains fundamental classification of synthetic musk compounds together with specification and detailed description of their most significant representatives. Among them are linalool, citronellol, and isobornyle acetate which will be studied further in master’s thesis. Fundamental physical-chemical properties of these odoriferous compounds and their toxicological and environmental impact are studied. Also part of this thesis is a detailed description of synthetic musk compounds’ analytical determination.
Separation of exosomes from polydisperse suspension in microfluidic devices
Paříková, Anna
The work included fine-tuning the experimental methodology, writing an in-house code for exosome tracking based on a one-way\napproach, and performing a parametric study to investigate the separation potential of the microdevice as a function of channel geometry, flow rate, and viscosity. Preliminary results show that viscoelasticmicrofluidics can be used as an alternative to conventional e xosome separation techniques.
Plný tet: Download fulltextPDF
Determination of selected musk compounds in biotic samples
Blahová, Eliška ; Čáslavský, Josef (referee) ; Vávrová, Milada (advisor)
Musk compounds (MUSK) or synthetic fragrances are organic substances commonly used as fragrant constituents of detergents, soaps, cosmetics, personal care products, industrial and in-house cleaning agents, industrial plasticizers, chewing tobacco and fresheners. The big attention is pushed ahead studying these compounds, their fate in different parts of ecosystems and studying their characteristics at present, because musks infiltrate many environmental components, particularly aquatic and marine ecosystems, through their large application and their ability to be perzistant. This diploma thesis was focused on four synthetic “classical” fragrances used over the world. The aim of this study was to perform a method optimisation for the determination of selected fragrances in biotic matrix. There was made an evalution of ability of selected water treatment plant to clear away musks from water, these results were used for evaluating contamination measurement of aquatic ecosystem. The identification and quantification of analytes was carried out by high resolution gas chromatography - mass spectrometry (HRGC/MS).
Evaluation of occurence of musk compounds in water ecosystem
Tobková, Lenka ; Zouhar, Libor (referee) ; Vávrová, Milada (advisor)
This bachelor’s thesis is concerned with synthetic musk compounds and their presence in the environment, particularly in water ecosystem. The thesis contains fundamental classification of synthetic musk compounds together with specification and detailed description of their most significant representatives. Among them are linalool, citronellol, and isobornyle acetate which will be studied further in master’s thesis. Fundamental physical-chemical properties of these odoriferous compounds and their toxicological and environmental impact are studied. Also part of this thesis is a detailed description of synthetic musk compounds’ analytical determination.
Use of mass spectrometry and separation techniques for determination of different metal species in food
Křížová, Soňa ; Vitoulová, Eva (referee) ; Diviš, Pavel (advisor)
This work deals with combination of ICP-MS (inductively coupled plasma mass spectrometry) and various types of chromatographic separation methods for speciation analysis of metals in foodstuffs. The basic information of instrumental analytical techniques and ICP-MS are discussed. The most contained metals in foodstuffs and ways of contamination are developed. Speciation analysis of metals and different forms of metals in biological materials are considered.
Chiral Stationary Phases Based on Silica Modified by Helicenes
Bernard, Martin
Fulltext: content.csg - Download fulltextPDF
Plný tet: SKMBT_C22014070913351 - Download fulltextPDF

Interested in being notified about new results for this query?
Subscribe to the RSS feed.